Circuit breakers - Legrand

INTROThe purpose of selecting a protection device is to perform twoessential functions: to protect people and to protect trunking,while ensuring the best possible continuity of service. On theother hand, the role of a breaking device (isolation, functionalbreaking, emergency breaking) is to control the various circuitswithout providing protection on its own.The purpose of the protection of trunking is to limit the effects ofoverloads and short circuits (see the book 4 “Sizing conductors andprotection devices”). People are protected against indirect contactaccording to the neutral earthing system and the characteristics of theinstallation (see the book 6 “Electrical hazards and protecting people”).Legrand equipment covers all requirements for breaking and LVprotection:- DMX 3 air circuit breakers and switches for high-power LV maindistribution boards (up to 6300 A)- DPX 3 and DPX moulded case circuit breakers and switches (16 to1600 A)- DPX-IS and Vistop load break switches- DX 3 modular circuit breakers for protecting terminal circuits- Residual current circuit breakers and switches, and adaptable earthleakage modules for the protection of people- Voltage surge protectors to protect equipment against overvoltagesA wide range of characteristics, technologies and accessories areavailable to meet all requirements.In accordance with its policy of continuous improvement, the Company reserves the right to change specificationsand designs without notice. All illustrations, descriptions, dimensions and weights in this catalogue are for guidanceand cannot be held binding on the Company.

DRX moulded case circuit breakers 84The DRX range 84Technical characteristics 85Lexic DX 3 modular circuit breakers 88The Lexic DX 3 modular range 88Characteristics of DX 3 circuit breakers 90Auxiliaries and motor-driven controls for DX 3 92Connecting DX 3 93Choice of protection devices accordingto the neutral earthing system 94Special applications and derating 95Performance data 97Thermal stress limitation curves 98TX 3 modular circuit breakers 102RX 3 modular circuit breakers 104Legrand isolating switches 106Isolating switches with positive contact indication 106Isolating switches with visible contact indication 107Trip-free isolating switches 113Fuses 114Fuse technology 114Fuse characteristics 116SPX fuse carriers and fused isolating switches 122SPX range 122Technical characteristics 123Connection capacity 125Dimensions 12602

Back-up protection 130Back-up between MCCBs and MCBs 132Back-up between fuse cartridges and MCBs 134Back-up between circuit breakers and switches 134Selectivity between protection devices 136Current sensing selectivity 137Time selectivity 138Dynamic selectivity 138Logical selectivity 140Selectivity Tables (3-phase network 400/415 V AC) 144Choice of products 150DMX 3 ACBs and DMX 3 -I trip-free switches 150dPx 3 circuit breakers and DPX-I trip-free switches 152DRX circuit breakers 158DX 3 Lexic MCBs, rcds and rcbos 159TX 3 mcbs 164RX 3 mcbs and RCDs 164DPX-IS and VISTOP isolating switches 165SP fuse carriers and cylindrical cartridge fuses 166Base, SPX and blade type cartridge fuses 18803

e a k i n g a n d p r o t e c t i o n d e v i c e sCircuit breakersA circuit breaker is both a circuit-breakingdevice that can make, withstand and break currentswhose intensity is at most equal to itsrated current (In), and a protection device thatcan automatically break overcurrents whichgenerally occur following faults in installations.The choice of a circuit breaker and its characteristicsdepends on the size of the installation.technologies usedtechnologies usedOvercurrents are detected by three different devices:thermal for overloads, magnetic for short circuits andelectronic for both. Thermal and magnetic releases,which are generally combined (thermal-magneticcircuit breakers), use an economical, tried and testedtechnology, but provide less flexibility of adjustmentthan electronic releases.Legrand circuit breakers also perform thefollowing functions:- Manual or automatic control of a circuit- Isolation with positive contact indication- Isolation with visible contact operation forplug-in or draw-out devices- Emergency breaking- Residual current protection- Undervoltage protectionProduct standardsInstallation standardsIt is important to distinguish between these two typesof standard: the former concern the equipment, andare the responsibility of the manufacturers, while thelatter concern installation, and ensure the correctoperation, safety and durability of installations.Installation standards are compulsory by law.Installers must apply them, but beyond that they mustalso ensure the overall performance of the installation(from the main LV distribution board to the socket)based on the product quality and guarantees that onlya major manufacturer can provide.1 Thermal releaseThis consists of a bi-metal strip which, if heatedbeyond the normal operating values, becomes deformed,releasing the lock holding the contacts.The reaction time of a bi-metal strip is inversely proportionalto the intensity of the current. As a resultof its thermal inertia, the bi-metal strip reacts fasterwhen a second overload follows the first in quick succession.This improves the protection of the cables, thetemperature of which is already higher.DPX circuit breakers enable the trip current Ir tobe set between certain limits (0.4 to 1 In dependingon the model).2 Magnetic releaseThis consists of a magnetic loop whose effect releasesthe lock holding the contacts, thus triggering breakingif there is a high overcurrent. The response time is veryshort (around one tenth of a second). DPX mouldedcase circuit breakers have an Im setting (up to 10 x Ir),which can be used to set the trip value to the protectionconditions of the installation (fault current andindirect contact).Moreover this setting, when combined with a timedelay, can be used to find the best discriminationconditions between the devices.04

3 Electronic releaseA coil, placed on each conductor, continuouslymeasures the current in each of them.This information is processed by an electronic modulewhich controls the tripping of the circuit breaker whenthe values of the settings are exceeded.The curve of the release shows three operating zones.• “Instantaneous” operating zoneThis provides protection against high intensity shortcircuits. It is either set by construction at a fixed value(5 to 20 kA), or adjustable according to the device.• “Short delay” operating zoneThis provides protection against lower intensity shortcircuits, which generally occur at the end of the line.The trip threshold is generally adjustable. The periodof the delay may be increased by thresholds up to onesecond, to ensure discrimination with devices placeddownstream.• “Long delay” operating zoneThis is similar to the characteristic of a thermalrelease. It protects conductors against overloads.The electronic releases available on DMX and DPXimprove the discrimination and make the devicesable to communicate.Thermal-magnetic releasetThermalrelease zoneElectronic releasetTypical tripping curvesMagneticrelease zoneILong delayoperating zoneShort delayoperating zoneInstantaneousoperating zoneIElectric arcThe current is broken in the circuit breaker arc chamber, which isdesigned to control the electric arc produced when the contacts open(rather like electrodes). The arc energy can become considerable,up to 100 kilojoules and 20 000°C, and can cause the contacts to beeroded by vaporisation of the metal.It is therefore a good idea to extinguish the arc as quickly as possible,in order to limit its effects. The magnetic field produced by the arc(which is a conductor) is used to move it into an “arc chamber”and extend it until it has been extinguished.The circuit breaker mechanisms must combine very fast opening of thecontacts (limiting erosion) and high contact pressure (opposition to theelectrodynamic forces).IProspectiveIscLimited IscArc UMains UUEnergylimitingtRestoredvoltagettechnologies used05

e a k i n g a n d p r o t e c t i o n d e v i c e sCircuit breakers (continued)characteristics of circuit breakers1 Rated operating voltageUe (in V)This is the voltage(s) at which the circuit breaker canbe used. The value indicated is usually the maximumvalue. At lower voltages, certain characteristics maydiffer, or even be improved, such as the breakingcapacity.2 Insulation voltage Ui (in V)This value acts as a reference for the insulationperformance of the device. The insulation test voltages(impulse, industrial frequency, etc.) are determinedbased on this value.3 Impulse voltage Uimp (in kV)This value characterises the ability of the device towithstand transient overvoltages such as lightning(standard impulse 1.2/50 µs).6 Ultimate breaking capacityIcu (in kA)This is the maximum short-circuit current value that acircuit breaker can break at a given voltage and phaseangle (cos ϕ). The tests are executed according to thesequence O - t - CO. O represents an automatic breakoperation, t a time interval and CO a make operationfollowed by an automatic break operation. Followingthe test, the circuit breaker must continue to provide aminimum level of safety (isolation, dielectric strength).7 Nominal breaking capacityIcn (in A)In standard IEC 60898-1, the breaking capacity of thedevice is tested in a similar way but is called Icn. Afterthe test, the circuit breaker must retain its dielectricproperties and be able to trip in accordance with thespecifications in the standard.characteristics of circuit breakers4 Utilization categoryIEC 60947-2 designates circuit breakers asbelonging to one of two categories:- Category A for circuit breakers which do not havea time delay before tripping on a short circuit- Category B for circuit breakers which have a timedelay. This can be adjusted in order to perform timediscrimination for a short-circuit value less than Icw.The value of Icw must be at least equal to the larger ofthe two values, 12 In or 5 kA, for circuit breakers with arated current of 2500 A at most, and 30 kA thereafter.5 Rated current In (in A)This is the maximum current value the circuit breakercan withstand on a permanent basis.This value is always given for an ambient temperaturearound the device of 40°C in accordance withstandard IEC 60947‐2, and 30°C in accordance withstandard IEC 60898-1.If this temperature is higher, it may be necessaryto reduce the operating current.Circuit breakers are often identified withtwo breaking capacities.This distinction is the result of standards usingdifferent test conditions.• 10 000 : standard IEC 60898-1 for householdor similar applications where unqualifiedpeople can re-close a circuit with a persistentfault several times. The breaking capacity(in Amps) appears in a box, with no mentionof the unit.• 10 kA: standard IEC 60947-2 for all applicationswhere those who work on them arequalified. The breaking capacity then appearstogether with its unit.06

8 Standard breakingcapacity IcsThis is the value expressed as a percentage of Icu. Itwill be one of the following values: 25% (category Aonly), 50%, 75% or 100%. The circuit breaker must becapable of operating normally after breaking the Icscurrent several times using the sequence O-CO-CO.Standard IEC 60898 gives the minimum values tobe reached according to the Icn of the device.10 Rated short-circuit makingcapacity Icm (kA peak)This is the maximum current intensity a device canmake at its rated voltage according to the conditionsof the standard. Devices without a protection function,such as switches, must be able to withstand short-circuitcurrents with a value and duration resulting fromthe action of the associated protection device.During operation, it is very rare that acircuit breaker has to break the maximumprospective short-circuit current (whichwas used to determine its required breakingcapacity). However, it may have to break lowercurrents. If they are lower than the Ics of thedevice, this means that the installation canbe restarted immediately after the break.It should be noted that to date very fewspecifications or installation standards havemade any reference to the Ics.9 Short-time withstandcurrent Icw (in kA)This is the value of the short-circuit current that acategory B circuit breaker is capable of withstandingfor a defined period without altering its characteristics.This value is intended to enable discriminationbetween devices. The circuit breaker concerned canremain closed while the fault is eliminated by thedownstream device as long as the energy I 2 t does notexceed Icw 2 (1 s).By convention the value Icw is given for a timet = 1 s. For a different duration t, this mustbe indicated, for example Icw 0.2. It is thennecessary to check that the thermal stressI 2 t, generated until the downstream devicebreaks, is actually less than Icw 2 t.Product standards• Standard IEC 60898-1In practice, reference is made to this standard for theterminal circuits of household, residential and smallbusiness installations, where those involved are notqualified. It applies up to 125 A, 25 000 A breakingcapacity and 440 V. Thermal tripping takes placebetween 1.13 and 1.45 In. It determines operatingranges, such as B, C, D, etc. for magnetic tripping.Products complying with standard IEC 60898 can alsobe used in industrial installations as far as their characteristicspermit.• Standard IEC 60947-2This standard is used in industry, and assumes thatthose involved are qualified. It does define an operatingrange: all characteristics (Ir, Im, t, etc.) can beadjusted.Legrand DX 3 circuit breakers comply withboth standards.• Standard IEC 61009-1This applies to circuit breakers with a residualcurrent function.• Standard IEC 61008-1This applies to residual current circuit breakers.characteristics of circuit breakers07

e a k i n g a n d p r o t e c t i o n d e v i c e sCircuit breakers (continued)tripping curvesExamples of tripping curvesDPX 250 circuit breakerwith thermal-magnetic release10 000DPX-H 1600 circuit breakerwith electronic release10000t (s)1 000Thermal release zonewhen coldt (s)1000Tr = 30 s 20 %Tr = 20 s 20 %Tr = 10 s 20 %100100Tr = 5 s 20 %10Thermal release zonewhen hot (in steady state)101Adjustable magneticrelease zone1I 2 t = KImIn: 1 600 A0.1Im0.1TmIn: 1 250 AIn: 630 A0.010.01If0.0011 2 3 4 5 10 20 30 50 100I/Ir0.0010.21 2 3 4 5 10 5 7 10 30 70I/IrI/Intripping curvesI: actual currentIr: thermal protection against overloads(Ir setting = x In)Im: magnetic protection against short circuits:(Im setting = x Ir)Since the abscissa of the curves expresses the I/Irratio, modifying the Ir setting does not change thegraphic representation of thermal tripping.However, the magnetic setting Im can be read directly(3.5 to 10 in this example).I: actual currentIr: long delay protection against overloads(adjustable: Ir = x In, 0.4 to 1 x In)Tr: long delay protection operation time(adjustable: 5 to 30 s) up to 6 x IrIm: short delay protection against short circuits(adjustable: Im = x Ir, 1.5 to 10 Ir)Tm: short delay protection operation time(adjustable: 0 to 0.3 s)I 2 t constant (adjustable via Tm)If: fixed threshold instantaneous protection(fixed: 5 to 20 kA depending on the model)08

Example of setting a circuit breaker and reading the curvesHere: I B = 500 A and Ik3 max = 25 kA at the installation point.Protection can then be provided by an electronic DPX 630,rating 630 A (Cat. No. 256 03/07),long delay setting (overload) Ir = 0.8 x In, i.e. 504 AScenario 1: High min. IscIsc min. (at end of line) = 20 kA⇒ short delay setting (short circuit) Im = 10 x Ir,i.e. 5040 AReading the curves:If I < 504 A ⇒ no trippingIf 504 A < I < 5 kA ⇒ tripping between 1 and 200 s(long delay protection)If I > 5 kA ⇒ tripping in 0.01 s(fixed threshold instantaneous protection)10000t (s)1000200 s100106 sScenario 2: Low min. IscIsc min. (at end of line) = 4 kA⇒ short delay setting (short circuit) Im = 5 x Ir,i.e. 2520 AReading the curves:If I < 504 A ⇒ no trippingIf 504 A < I < 2520 A ⇒ tripping between 6 and 200 s(long delay protection)If 2520 A < I < 5 kA ⇒ tripping < 0.1 s(short delay protection)If I > 5 kA ⇒ tripping in 0.01 s(fixed threshold instantaneous protection)1 s3 s10.10.010.0010.21 2 3 4 5 6 10 5 7 10 30 70I/IrIn: 630 AIn: 500 AIn: 400 AI/InIn: 320 AIfScenario 3: Cable thermal stress limitedlong delayshort delayinstantaneousIsc min. (at end of line) = 20 kAConductor 10 mm 2 , permissible thermal stress:1.32 x 106 A 2 s, i.e. 3633 A for 0.1 s⇒ short delay setting (short circuit) Im = 7 x Ir,i.e. 3528 A (< Ith of the cable)Reading the curves:If I < 504 A ⇒ no trippingIf 504 A < I < 3528 A ⇒ tripping between 3 and 200 s(long delay protection)If 3528 A < I < 5 kA ⇒ tripping < 0.1 s(short delay protection)If I > 5 kA ⇒ tripping in 0.01 s(fixed threshold instantaneous protection)I = Ir = 504 Along delaylong delayIm = 5 x Ir = 2520 AIm = 7 x Ir = 3528 AIm = 10 x Ir = 5040 Ashort delayI = If = 5 kAinstantaneousinstantaneoustripping curves09

e a k i n g a n d p r o t e c t i o n d e v i c e sCircuit breakers (continued)For secondary circuit breakers, standard IEC 60898-1specifies the limits within which tripping on shortcircuits should take place:• Curve B: 3 to 5 In• Curve C: 5 to 10 In• Curve D: 10 to 20 InOther types of curve can also be used:• Curve Z: 2.4 to 3.6 In• Curve MA: 12 to 14 InMain tripping curves for DX 3 circuit breakers10000t (s)1000As a general rule, curve C circuit breakers areused for standard distribution applications.It may be necessary to use curve B circuitbreakers for low short-circuit currents (longcables, secondary circuit breaker in IT or TNsystem, alternator, etc.).If there are high inrush currents (transformers,motors), curve D avoids false tripping,in particular on starting. Curve Z (high sensitivity)is generally reserved for protectingcircuits supplying electronic equipment.MA (magnetic only) circuit breakers are usedfor circuits where thermal protection is prohibitedor provided by other methods: safetycircuits in public buildings, motor circuits,transformers, etc.1001010.10.010.001BCD1 2 3 4 5 10 20 30 50 100 200x InlimitationTripping curves / limitationIf there is a short circuit, without any protection, thecurrent that would flow through the installation isthe prospective short-circuit current.When a short-circuit current crosses a circuitbreaker, the circuit breaker has the capacity, to a greateror lesser extent, to allow only part of this current toflow. The short circuit is then limited in amplitudeand duration.The purpose of limitation is to reduce:- Thermal stress- Electrodynamic forces- Effects of electromagnetic inductionIt also makes discrimination and combination easier.The limitation capacity of devices is represented in theform of limitation curves.Limitation of the prospectiveshort-circuit currentProspectivepeak IscProspectiverms IscLimitedpeak IscIscLimited IscProspective Isct10

1 Current limitationcurvesThese give the maximum peak current values(in A peak), limited by the devices according to thevalue of the prospective short-circuit current.The limited current values are used to determinethe size of the busbars and to check the withstandof conductors and devices.2 Thermal stresslimitation curvesThese give the image of the energy (en A 2 s) thatthe device allows to flow according to theprospective short-circuit current.They can be used to check the thermal stresswithstand of cables protected by the device.Current limitationThermal stress current limitationPeak Isc (A)Limitedpeak IscUnlimited peak IscI 2 t (A 2 s)Thermal stress curvepermitted by the cableDevicebreakingcapacityIcc (A)Prospective Iscat the device terminalsProspectiverms IscDevice breakingcapacityThermaltrip zoneMagnetictrip zoneLimitation class for modular circuit breakersAppendix ZA of standard IEC 60898-1 defines the thermalstress limitation classes for ratings of 40 A or less. Thelimitation classes are used to classify the thermal stresslimiting capacities. Example for a 6 kA type C circuit breakerfrom 20 to 32 A:- Class 1: unlimited thermal stress- Class 2: thermal stress limited to 160 000 A 2 s maximum- Class 3: thermal stress limited to 55 000 A 2 s maximumAll Legrand circuit breakers rated 40 A or less areclass 3.limitation11

e a k i n g a n d p r o t e c t i o n d e v i c e sDMX 3air circuitbreakersAir circuit breakers get their name fromthe fact that their breaking chambers are inthe open air to allow better energy dissipation.Their electrical and mechanical strength,breaking capacity, maintainability and optionalaccessories make them ideal for protectionand control at the supply end of low voltageinstallations.the dmx 3 rangeLegrand DMX 3 air circuit breakers are ideal for therequirements of low voltage installations up to 6300 A,providing clarity of installation, optimised dimensions,easy mounting and simple connection.All the devices in the DMX 3 range are mounted behindthe same faceplate, as they have the same dimensionsand an identical front panel.DMX 3 have very high performance, technologicallyadvanced electronic control and protection units.They are available in 3 breaking capacities withjust two sizes of device. The designation DMX 3 -Ncorresponds to a breaking capacity of 50 kA,DMX 3 -H to 65 kA, and DMX 3 -L to 100 kA.All DMX 3 are available in both fixed and draw-outversion. In comparison with the fixed version, thedraw-out version has additional locking facilities(draw-out position), optimum safety when work isbeing carried out on them (padlocking and physicalseparation of the installation) and is easily interchangeable(no disconnection to be carried out).3-poles DMX 3 -H 2500draw-out versionComposition of a DMX 3the dmx 3 rangeAll the circuit breakers are supplied as standard with:- Manual control- Terminal blocks for connecting output auxiliaries- Connection plates- 4 auxiliary changeover contacts- Cover for access to lockable settings- Mechanical indication of activationAnd for draw-out versions:- Mobile contacts for connecting auxiliaries- IP 40 protection in draw-out position- Retractable handles- Padlock of the circuit breaker in inserted-draw-outposition4-poles DMX 3 -H 2500fixed version3 sizes only for the entire range800÷2500A 3200-4000A 5000-6300ADMX 3 -N (50 kA) F1 F2 -DMX 3 -H (65 kA) F1 F2 -DMX 3 -L (100 kA) F2 F2 F312

Draw-out DMX 3Isolator terminal blocksfor auxiliary contactsKey lockin “Open” positionOpen control buttonMP4 LSIg tripping unitReset buttonIndicator showingthe position of the maincontacts O / IDevice position indicator :Plugged in - TEST - Draw-outWindows for displayingauxiliary equipmentClose control buttonColour marking for breaking capacity:grey for DMX 3 -N, yellow for DMX 3 -H,red for DMX 3 -LSpring loading leverIndicator showing the load status ofsprings:Charged / DischargedKey locking indrawn-out positionLockable aperture for insertionof the extraction handleClear and easy mounting principleThe overall dimensions of the breaker contribute considerably toefficient use of the space inside the electrical panel. The constantdepth for all the rated currents facilitates connection of the busbars.In XL³, the DMX³ devices and the associated busbars are arrangedusing the sameprinciple for all power ratings, ie the possibility ofmounting three busbars and two devices per enclosure.The correct size for the current, and thus the power to be dissipated,is obtained by adapting the depth of the assembly:- 725 mm min. up to 2500 A- 975 mm min. up to 4000 AThe installation height of DMX 3 units is always 600 mm whateverthe type and size of the device. When 2 DMX³ devices are installedin the same enclosure, this leaves at least a useful 600 mm forrunning the busbars.For DMX 3 of 5000 and 6300A is necessary employ specific enclosureswith an installation kit.200 mm600 mm200 mm600 mm200 mmthe dmx 3 range13

e a k i n g a n d p r o t e c t i o n d e v i c e sDMX 3 air circuitbreakers (continued)technical characteristicstechnical characteristicsCharacteristicsDMX 3 2500 DMX 3 4000 DMX 3 6300N H L N H L LFrame F1 F1 F2 F2 F2 F2 F3Number of poles 3P - 4P 3P - 4P 3P-4PNominal rating protection unit In (A) 800-2500 3200-4000 5000-6300Nominal rating In (A) 800-2500 3200-4000 5000-6300Rated insulation voltage Ui (V) 1000 1000 1000Rated impulse withstand voltage Uimp (kV) 12 12 12Rated operating voltage (50/60Hz) Ue (V) 690 690 690230 V AC 50 65 100 50 65 100 100415 V AC 50 65 100 50 65 100 100Ultimate breaking capacity Icu (kA) 500 V AC 50 65 100 50 65 100 100600 V AC 50 60 75 50 65 75 75690 V AC 50 55 65 50 65 65 65Service breaking capacity Ics (% Icu) 100% 100% 100%Closing capacity on short circuits Icm(kA)Short-time withstand current Icw (kA)for t = 1 s230 V AC 105 143 220 105 143 220 220415 V AC 105 143 220 105 143 220 220500 V AC 105 143 220 105 143 220 220600 V AC 105 132 165 105 143 165 165690 V AC 105 121 143 105 143 143 143230 V AC 50 65 85 50 65 85 100415 V AC 50 65 85 50 65 85 100500 V AC 50 65 85 50 65 85 100600 V AC 50 60 75 50 65 75 75690 V AC 50 55 65 50 65 65 65Neutral protection (% In) OFF-50-100 OFF-50-100 OFF-50-100Category of use B B BIsolation capability YES YES YESOpening time 15ms 15ms 15msClosing time 30ms 30ms 30msEndurance (o.c. cycles) mechanical 10000 10000 5000Endurance (o.c. cycles) electrical 5000 5000 2500Operating temperature -5°C to +70°C -5°C to +70°C -5°C to +70°CStorage temperature -25°C to +85°C -25°C to +85°C -25°C to +85°CVersionFixedDraw-outPower dissipated per pole (W)FrameDMX 3 2500 DMX 3 4000 DMX 3 6300800 A 1000 A 1250 A 1600 A 2000 A 2500 A 3200 A 4000 A 5000 A 6300 AF1 20 32 50 82 128 200 - - - -F2 16 25 39 64 100 156 256 400 325 516F1 51 80 125 205 320 500 - - - -F2 31 48 75 123 192 300 492 768 625 99214

Temperature deratingAmbient temperature Up to 40°C 50°C 60°C 65°C 70°CFixedVersion Device Imax (A) Ir / In Imax (A) Ir / In Imax (A) Ir / In Imax (A) Ir / In Imax (A) Ir / InDraw-outDMX 3 2500DMX 3 4000DMX 3 6300DMX 3 2500DMX 3 4000DMX 3 6300800 1 800 1 800 1 800 1 800 11000 1 1000 1 1000 1 1000 1 1000 11250 1 1250 1 1250 1 1250 1 1250 11600 1 1600 1 1600 1 1600 1 1600 12000 1 2000 1 1960 0,98 1920 0,96 1880 0,942500 1 2450 0,98 2350 0,94 2250 0,9 2150 0,863200 1 3200 1 3200 1 3136 0,98 3008 0,944000 1 3920 0,98 3680 0,92 3440 0,86 3120 0,785000 1 5000 1 5000 1 5000 1 5000 16300 1 6300 1 6048 0,96 5796 0,92 5544 0,88800 1 800 1 800 1 800 1 800 11000 1 1000 1 1000 1 1000 1 1000 11250 1 1250 1 1250 1 1250 1 1250 11600 1 1600 1 1600 1 1600 1 1600 12000 1 2000 1 1960 0,98 1920 0,96 1875 0,942500 1 2400 0,96 2250 0,9 2100 0,84 1950 0,783200 1 3200 1 3200 1 3072 0,96 2880 0,94000 1 3760 0,94 3440 0,86 3200 0,8 2960 0,745000 1 5000 1 5000 1 5000 1 5000 16300 1 6174 0,98 5985 0,95 5796 0,92 5292 0,84Altitude deratingAltitude (m) < 2000 3000 4000 5000Ue (V) 690 600 500 440Ui (V) 1000 900 750 600In (A) (T = 40°C) In 0.98 x In 0.94 x In 0.9 x InFrame 1Frame 2Frame 3Dimensions and weightFixedDraw-out3P 4P 3P 4Pwidth X depth X height (mm) 273X354X419 358X354X419 327X433X473 412X433X473volume (dm 3 ) 41 53 67 84weight (kg)DMX 3 41 48 77 94DMX 3 -I 39 45 75 91width X depth X height (mm) 408X354X419 538X354X419 425X433X473 555X433X473volume (dm 3 ) 61 80 87 114weight (kg)DMX 3 59 76 108 137DMX 3 -I 57 73 106 134width X depth X height (mm) 797X354X473 1057X354X473 804X433X473 1064X433X473volume (dm 3 )weight (kg)DMX 3DMX 3 -Itechnical characteristics15

e a k i n g a n d p r o t e c t i o n d e v i c e sDMX 3 air circuitbreakers (continued)electronic protection unitsDMX 3 air circuit breakers have modern protectionunits that enable very precise setting of the protectionconditions while maintaining total discrimination withthe upstream devices.The MP4 standard electronic protection unit isavailable in three versions: LI, LSI and LSIg accordingto the settings it provides.The MP6 protection unit has additional functionsand its touch screen makes it very easy to use. It isavailable in 2 versions: LSI and LSIg.- L: long delay protection against overloads (timestr and currents Ir)- S: short delay protection against short circuits(times tm and currents Im)- I: instantaneous protection against very highintensity short circuits (Ii)- g: protection against earth faults (times tg andcurrents Ig)Residual current protection (with external core)is optionally available on all models.• LI• LSIMP4 protection unitstIrTrImtIrTrImTmIIiMP4 LSIg electronic protection unit• LSIgttgIgIttgItIrTrIgIImelectronic protection unitsIg settingsIi settingsIm settingsIr settingsLEDs indicatingcorrect operationtg settingstm settingstr settingsMini USBconnectorNeutral protectionTm tIiIrTrIImAll DMX 3 breakers are factory equipped withone of the protection units on catalogue: MP4protection unit LI, LSI or LSIg or MP6 LSI orLSIg according to your requirements.You just need to select and indicate the twocatalogue numbers when placing the order(1 for the breaker and 1 for the tripping unit)TmIi16

Functions of electronic protection units (continued)Electronic protection unitMP4MP6LI LSI LSIg LSI LSIgUSB port for diagnostic software • • • • •External linksTerminal block for auxiliaries • • • • •ModBus on RS485 optional optional optional optional optionalOverheating >75°C • • • • •Logical discrimination • • • • •Management of non-priority loads • •Power return: 0.1 to 20 s - 5 to 100% Ir • •Current imbalance: 1 to 3600 s - 100 to 600 V • •Signallingand alarmsMax. Ph/N voltage: 0.1 to 20 s - 60 to 400 V • •Min. Ph/N voltage: 0.1 to 20 s - 10 to 400 V • •Ph/N voltage imbalance: 0.1 to 20s - instantaneous • •Inversion of phase rotation • •Max. frequency: 45 to 500 Hz - 0.1 to 20 s • •Min. frequency: 45 to 400 Hz - 0.1 to 20 s • •Memory settingsMaintenance of Air Circuit Breakers (ACB)If a device is changed, the electronic tripping unitretains the settings and all the data recorded duringoperation of the breaker which was previously installed(faults, operations, currents, etc).This function makes maintenance safe and reducesdowntime to a minimum. The settings are thus nolonger associated with the device, but with the circuitwhich is being protected.On standard, all protection units are equipped with batteriesso you can monitor and adjust the parameterseven when the breaker is not connected. For example,it’s possible to set the protection unit before install thebreaker or see the info inside during a trip.The requirements for functional security of theelectrical systems are strategic in many domains ofactivity (norm IEC 61508).By conception, in the planning of preventivemaintenance, the ACBs are designed to permit aseries of interventions at different levels: cleaning ofbreaking chamber, verification and possible change ofthe worn out elements, etc.The specific Legrand documents give the detailedprocedures of the operations to do.electronic protection units19

e a k i n g a n d p r o t e c t i o n d e v i c e sDMX 3 air circuitbreakers (continued)communication and supervisionThe MP4 and MP6 electronic protection units can communicatewith an RS-485 communication port. Thisport is used for remote monitoring and managementof the devices in the installation, using the MODBUSprotocol. It is therefore possible to control circuitbreaker opening and closing, display the electricalparameters and detect all the alarms generatedby the devices, from a PC.With the new DMX 3 , the installation and protectiondevices can be managed in a simple, functional way,determining the state of the circuit breaker at any timeand solving most problems via the network.Using the circuit breaker’s supervision system, maintenanceoperations can be planned and the efficiencyof the installation optimised.GConversion interface(RS-485/RS232,RS-485/USB etc.)MODBUS protocol and RS-485 linkcommunication and supervisionGPowerRS-485 linkCircuit breaker/module linksGenerator setMechanical interlockInterface forelectronic DPXControl and signallingmoduleInterfacefor electronicDPX20

accessories1 Shunt tripShunt trips are devices used for the remote instantaneousopening of the air circuit breaker. They aregenerally controlled trough an N/O type contact. Thecurrent range of shunt trips proposes five supply voltagesfrom 24 V to 415 V). The shunt trips are alreadyequipped with a special fast connector, to be directlyinserted into auxiliary contact block. An auxiliarycontact is connected in series with the coil, cutting offits power supply when the main poles are open- Nominal voltage Un: - 24, 48, 110, 230 V AC/DC- 415 V AC- Tolerance on nominal voltage: 70 to 110% Un- Maximum power consumption (for 180 ms):500 VA AC/500 W DC- Continuous power: 5 VA AC/5 W DC- Maximum opening time: 30 ms- Insulation voltage: 2 500 V 50 Hz for 1 min- Endurance on pulse: surge proof 4 kV 1.2/50 ms2 Undervoltage releaseUndervoltage releases are devices which are generallycontrolled by an N/C type contact. They trigger instantaneousopening of the circuit breaker if their supplyvoltage drops below a certain threshold and in particularif the control contact opens. These releases areequipped with a device for limiting their consumptionafter the circuit has been closed.- Nominal voltage Un: - 24, 48, 110, 230 V AC/DC- 415 V AC- Tolerance on nominal voltage: 70 to 110% Un- Maximum power consumption (for 180 ms):500 VA AC/500 W DC- Continuous power: 5 VA AC/5 W DC- Opening time: 60 ms- Insulation voltage: 2 500 V 50 Hz for 1 min- Endurance on pulse: surge proof 4 kV 1.2/50 ms3 Closing coilsThese coils are used for remotely controlling the closingof the power contacts of the circuit breaker.Electrical auxiliaries are connected on thefront panel in no time, thanks to the fastconnector supplied on all accessories.The outputterminal blockhas automaticterminalsfor connectionwithout screwsU1 U2 OF11 OF12 OF13 TR UVR ST CC OF1 OF2 OF3 OF4 OF5The springs of the circuit breaker are to be loadedprior to the action of the closing coils. They arecontrolled by an N/O type contact.- Nominal voltage Un: - 24, 48, 110, 230 V AC/DC- 415 V AC- Tolerance on nominal voltage: 70 to 110% Un- Maximum power consumption (for 180 ms):500 VA AC/500 W DC- Continuous power: 5 VA AC/5 W DC- Maximum closing time: 50 ms- Insulation voltage: 2 500 V 50 Hz for 1 min- Endurance on pulse: surge proof 4 kV 1.2/50 msaccessories21

e a k i n g a n d p r o t e c t i o n d e v i c e sDMX 3 air circuitbreakers (continued)4 Motor operatorsMotor operators, are used for remotely reloading thesprings of the circuit breaker mechanism immediatelyafter the device closes. The device can thus be reclosedalmost immediately after an opening operation.To motorise a DMX 3 it is necessary to add a release coil(undervoltage release or shunt trip) and a closing coil.If the supply voltage of the controls fails, it is stillpossible to reload the springs manually. Motor-drivencontrols have “limit swhich” contacts which cut offthe power supply of their motor after the springs havebeen reloaded. Motor operators are easy to mount,with only three screws.- Nominal voltage Un: 24 V AC/DC, 48 V V AC/DC,110 V AC/DC, 230 V AC/DC , 415 V AC- Tolerance on nominal voltage: 85 to 110% Un- Spring reloading time: 5 s- Maximum power consumption: 140 VA AC/140 W DC- Starting current: 2 up to 3 In 0.1 s- Maximum cycle: 2/min5 Signalling contactsAll DMX 3 air circuit breakers are equipped as standardwith 4 auxiliary contacts that can be used indipendentlylike NO or NC contact.It’s also possible to more auxiliary contacts up to reachthe number of 10.Mounting auxiliariesAuxiliaries are very easy to mount in the top partof the DMX 3 , behind the front panel.The positions are marked to prevent mountingerrors. It is possible to install up to 2 current shunttrips or 2 undervoltage releases and a closing coil.Auxiliaries are identified on the front panel.The front panel of the DMX 3 has windows so thatusers can check what auxiliaries are installedand their characteristics.Max number of auxiliariesshunttripundervoltagereleaseclosingcoil1 1 12 0 10 2 1Shunt tripClosingcoilUndervoltagereleaseMotoroperatoraccessories22

Connection diagramU2MOTU1164 RC 161154 SC 151102OF 1010110492OF 991948284OF 88172OF 7717462OF 6616452OF 5515442OF 4414432OF 3313422OF 22124ELECTRIC CHARGINGDEVICEREADY TO CLOSESPRINGS CHARGEDADDITIONALCONTACTS NO/NC4 AUXILIARY CONTACTS(standard)6 SAFETY AND PADLOCKINGACCESSORIESDMX 3 draw-out circuit breakers are provided as standardwith safety padlocking shutters preventing accessto live terminals. They have a number of other safetydevices, such as:Key-operated locks:- Main contacts open- Circuit breaker in draw-out positionPadlocks for:- Main contacts open- Contact shutters closed (for draw-out position)Door locking:in order to prevent the opening of the electrical swhichboarddoor when the contacts of the ACB are closed.12OF 11114C4C2D2142144CCSTUVRC3C1D1TR 141TR UVR ST CCCLOSING COILSHUNT TRIPUNDER VOLTAGE RELEASECLOSING COIL SIGNAL^ Key locking in openposition^ Key locking accessoryfor draw-out devices132134122124OF 13OF 12131121TRIPPED SIGNALSHUNT TRIP SIGNAL112114+12VdcL3L2L1N2880128802OF 110111UVR SIGNALPROTECTIONCONTROL UNITMAINCIRCUIT< Safety shuttersprovide protectionagainst the risk ofcontact with live parts,as standard on everydraw-out version DMX 3accessories23

e a k i n g a n d p r o t e c t i o n d e v i c e sDMX 3 air circuitbreakers (continued)connecting dmx 3Correct sizing and connection are crucial for the reliabilityof installations and in particular for high powerand very high power equipment.DMX 3 , both fixed and draw-out version, havegenerously sized connection plates and accessoriesenabling all connection configurations (flat, vertical,horizontal).Draw-out versionFixed versionDraw-out versionbreakers are suppliedwith rear terminals forflat connectionFixed version breakersare supplied with rearterminals for horizontalconnectionReversible connectorsallow vertical or horizontalconnectionSpreadersRear terminals on accessoriesallow flat or vertical connectionFor size 1, fixed version DMX 3 , spreaders makeit possible to use wider plates, in particular for connectingaluminium bars.For flatconnectionConnecting DMx 3For verticalconnectionFor horizontalconnection24

Derating (A) according to the type of connectionand minimum recommended cross-sections of barsInstalling circuit breakers in enclosuressometimes leads to the need to reducethe rated current. This derating is dueto a risk of overheating according to theconnection configuration on the busbar. Thetable opposite can be used to determinethis derating according to the ambienttemperature in the enclosure and the type ofconnection used. This table must however byconsidered as an example only. It refers toinstallation in an XL 3 4000 enclosure with thefollowing dimensions:- 2200 x 800 x 800 mm for a size 1 DMX 3- 2200 x 1400 x 800 mm for a size 2 DMX 3The values in the table are given for a plug-incircuit breaker in an IP 40 assembly withno internal separation and for a maximumterminal temperature of 120°C.VerticalconnectionHorizontal orflat connectionAmbient temperatureCopper barsIn (A) 35°C 45°C 55°C (mm 2 )800 800 800 800 1 x 60 x 101000 1000 1000 1000 1 x 80 x 101250 1250 1250 1250 1 x 80 x 101600 1600 1600 1600 2 x 60 x 102000 2000 2000 1800 2 x 80 x 102500 2500 2500 2500 3 x 80 x 103200 3200 3100 2800 3 x 100 x 104000 4000 3980 3500 4 x 100 x 105000 5000 4900 4700 6 x 100 x 106300 6300 6048 5796 7 x 100 x 10800 800 800 800 1 x 60 x 101000 1000 1000 1000 1 x 80 x 101250 1250 1250 1200 2 x 60 x 101600 1550 1450 1350 2 x 80 x 102000 2000 2000 1750 3 x 80 x 102500 2500 2450 2400 3 x 80 x 103200 3000 2880 2650 3 x 100 x 104000 3600 3510 3150 6 x 60 x 105000 5000 4900 4700 6 x 100 x 106300 6300 6174 5985 7 x 100 x 10Connection optionsHorizontalVertical Vertical HorizontalFlatConnecting DMx 325

e a k i n g a n d p r o t e c t i o n d e v i c e sDMX 3 air circuitbreakers (continued)Supply invertersSupply inverter performs the following functions:- Swhiching between a main source and a secondarysource in order to supply circuits requiringcontinuous service (for safety reasons) or forenergy saving purposes (when the secondarysource is different from the network).- Management of the operation of the secondarysource supplying the safety circuits.DMX³ and DMX³-I devices can be fitted with an interlockingmechanism which ensures “mechanicalsafety” in the event of supply inversion.Interlocking is achieved using interlocking unitsmounted on the side of the devices and a cable system.This system allows devices of different sizes and typesto be interlocked.The cable system provides the flexibility to installDMX 3 devices in a vertical configuration in the sameenclosure or in a horizontal configuration in differentcolumns.DMX 3 supply inverters used with XL 3 4000 enclosuresenable very intuitive configuration ofassemblies and busbars, as shown in the examplesbelow.Stand-by power supply (without load shedding)D1GD2D1D2The two DMX 3devices D1 andD2 are connectedto a centralcommon busbar.Since they are notsimultaneouslyon-load, they canbe in the sameenclosure.Supply inverters^ The interlocking mechanism with cables is easy to add to all DMX 3versions and is not dependent on their position in the assemblyIt is possible to install two devices in thesame enclosure if they are not both on-loadsimultaneously (supply inversion) or if the sumof their respective currents does not exceedthe values recommended for correct thermaldissipation.Otherwise, a single device must be installedin each enclosure.26

Stand-by power supply (with load shedding)Gnon prioritycircuitsD1D3D1D3D2prioritycircuitsD2Non priority circuitsPriority circuitsThe two DMX 3 devices D1 and D2 are not on-loadsimultaneously and can therefore be installed inthe same enclosure. D3 could be a DMX-I, whichcan be on-load at the same time as D1, andmust be installed in another enclosure.Dual power supply (reduced power with priority loads)non prioritycircuitsgroup 1D1D3D1D2prioritycircuitsNon priority circuitsgroup 1D3Priority circuitsD4Non priority circuitsgroup 2D2D4non prioritycircuitsgroup 2The two DMX 3 devices D1 and D2 are on-loadsimultaneously. They can only be installed in the sameenclosure if the sum of their currents does not exceedthe permissible value for the recommended size.D3 and D4 are not simultaneously on-load, they can bein the same enclosure.The ambient temperature in the enclosure must be limited as far as possible to a value which does not exceed40°C. Above this limit it becomes necessary to modify the permissible current value in the protection devicesand the bars (see p. 15).Supply inverters27

e a k i n g a n d p r o t e c t i o n d e v i c e sDMX 3 air circuitbreakers (continued)Examples of mechanical interlockingThe following example involves two circuit breakers.D1 is used for the main power supply of theinstallation (normal operation), D2 for emergencypower supply via a power generator (in caseof mains fault). For this configuration the twobreakers can be simultaneously open, but can notbe closed at the same time.D1D2D1OIOD2OOID1D2The following example involves three circuitbreakers connected to one common busbar.D1 and D2 breakers are supplying the energy fromtwo different power transformers and D3 from apower generator (in case of emergency).For this configuration all three breakers can besimultaneously open. At any time, only one singlecircuit breaker can be on-load. The following tableshows all possible combinations of mechanicalinterlocking of the 3 breakers.D1D1D1D1D1D1D2D2D2GD2D3GD2D3GGD3D3D1 D2 D3O O OI O OO I OO O IThe following example involves three circuitbreakers, with double mechanical interlock for D2circuit breaker. D1 and D3 breakers are supplying theelectricity form 2 power transformers.There are 6 possible interlocking combinations.D1D1D1D1D2 D2D2D2D2D2D3D3D3D3D1 D2 D3O O OI O OO O IO I OI I OO I II O ID1D2D3Supply invertersThe following example involves three circuitbreakers, with double mechanical interlocking forD2 circuit breaker. It is a possible version of theprevious layout, and has four combinations. D1 andD3 breakers supply energy for independent circuits.D2 breaker is used in case of emergencyfor priority circuits.D1D1D2D2D3D3D1 D2 D3O O OI O OO O II O IO I O28

Automation control unitChoice of interlocking cableThe mechanicalinterlockingsystem can besupplemented bymotorised operatorsand an electroniccontrol unit, makingthe inverter fullyautomatic.Type ofcableLength(m)1 2.62 33 3.64 45 4.66 5.6HVVHDistancesbetween devicesH (mm)0 725 to 1000 1000 to 2000^ It is very easy to create the required configuration thanks to thedifferent available sizes of XL 3 4000 enclosures and interlocking cablesV(mm)0 Type 1 Type 3800 to 1000 Type 1 Type 2 Type 51000 to 2000 Type 3 Type 4 Type 6Supply inverters29

e a k i n g a n d p r o t e c t i o n d e v i c e sDMX 3 air circuitbreakers (continued)Performance data and limitation curvesTripping curve for DMX 3 with MP4 Li protection unitatPerformance data and limitation curves30

Tripping curve for DMX 3 with MP4 Lsi protection unitatPerformance data and limitation curves31

e a k i n g a n d p r o t e c t i o n d e v i c e sDMX 3 air circuitbreakers (continued)Tripping curve for DMX 3 with MP6 Lsig protection unitat Performance data and limitation curves32

Tripping curve on earth faultThermal stress limitationt (s)10 40,2...1 In10 3t = Cost10 2I 2 t = Cost10 1 10,1...1 s10 -1 10 -1 1 10 10 210 -210 -3Ig/In Performance data and limitation curves33

e a k i n g a n d p r o t e c t i o n d e v i c e sDMX 3 air circuitbreakers (continued)Dimensions1 Fixed version - Frame 1■ 3P and 4P3P: 273 - 4P: 3582613P: 136.54P: 2463P: 130.54P: 130.53574196060952035903P=4P= 107.53P: 215 - 4P: 300147482132223.53545945.5 85 85 45.5Ø1185 8530 152045.5 85 85 85 45.585 85 85■ Rear terminals for flat connection with bars■ Rear terminals for vertical connection with bars608605850Ø 11 x 27050Ø 9 x 487050Ø 9 x 43630Dimensions48.54030Ø 11 x 4402034

■ Spreaders for flat connection with bars116.5 116.57050106 106 106705070505070M 81905070M 8■ Spreaders for vertical connection with bars■ Spreaders for horizontal connection with barsDimensions3549.53083549.55070M 83933430817.516.57070 134040Ø 13Ø 112020207052.5202083Ø 13 4070 Ø 11 Ø 11704016.5704016.535

e a k i n g a n d p r o t e c t i o n d e v i c e sDMX 3 air circuitbreakers (continued)2 Fixed version - Frame 2■ 3P and 4P3965261981989035730115 3041935040817548053817514 132 5974 223.582 36■ Rear terminals for flat connectionwith bars10010010070 15Ø 1014Ø 1135 35 1510050701001568 130 130 6868 130 130 130 681010 30 1025Dimensions2113015 35130Ø 112113015 35 35130 130Ø 115136

3 Draw-out version - Frame 1■ 3P and 4P3P: 316 - 4P: 4013P= 4P: 1581133501165176417 308047347350115Ø 980111226807415141.5 116.5 116.5 41.53P: 327 - 4P: 4123P: 220 - 4P: 305110 488017041.5 106 106 106 41.5■ Rear terminals for vertical or horizontal connection with bars70505850705020R 1Ø 9 x 436Ø 11 x 230Dimensions37

O KCM A N A U Tc h a r g e db r e a k i n g a n d p r o t e c t i o n d e v i c e sDMX 3 air circuitbreakers (continued)4 Draw-out version - Frame 2■ 3P and 4P3P=414 / 4P=5443P=4P=20711335078117 5310070417 30228.5100 100473473M10701003P=425 / 4P=55598.57477 130 130 77318159484482244810070M1080801701704737010077 130 130 130 77■ Rear terminals for vertical or horizontalconnection with bars10070Ø 1357010030Ø 10.5 (4x)1060Dimensions35 351638

5 connection of fixed version■ Frame 190 20 95 20606035445.5 85 85 45.5 45.5 85 85 85 45.5■ Frame 290 30 85 3010010035468 130 130 68Dimensions68 130 130 130 68■ Termination support150 mm max11mm39

e a k i n g a n d p r o t e c t i o n d e v i c e sDMX 3 air circuitbreakers (continued)6 Connection of draw-out version frame 1■ Flat connection407116.5 116.5 41.5106 106 106 41.5M8M81511518080115115505035643370 5070 50■ Horizontal connection70702030 20301420ø11151 115151 11585.5116.5 116.531641.5 106 106 106 41.5401■ Vertical connection1470Dimensions30ø1185.5116.5 116.531641.5151 115106106 10640141.5151 11540

7 Connection of draw-out version frame 2■ Flat connection4091007010070M10M10148.5148.5130130701007010035643377 130 130 7777 130 130 130 77■ Horizontal connection10035 3510035 351630Ø11148.5148.513013086.577 130 130 7777 130 130 130 77■ Vertical connection10035 3510035 351610035 35Ø1113013086.5148.577 130 130 77148.577 130 130 130 77Dimensions41

e a k i n g a n d p r o t e c t i o n d e v i c e sDMX 3 air circuitbreakers (continued)8 installation of Fixed Version■ Frame 1 ■ Frame 2BUSBAR BUSBAR BUSBAR BUSBAR4194194194192502502502502152733 POLES3003504803584085384 POLES 3 POLES 4 POLES■ Door cut-out26421.51181323540 to 50 mmPanel door337Frame 1: 1.5Frame 2: 66DimensionsCorner ofthe breaker42

9 installation of draw-out version■ Frame 1 ■ Frame 2BUSBARBUSBARBUSBARBUSBAR4734734734732502502502502203053184483274124255553 POLES4 POLES3 POLES4 POLES118■ Door cut-outø4 (x10)3.54417043213.52843.5Panel door110358110124993.51243.5413.5Frame 1: 16462Frame 2: 6549.5Corner ofthe baseDimensions43

e a k i n g a n d p r o t e c t i o n d e v i c e sDMX 3 air circuitbreakers (continued)10 installation of Fixed Version■ Frame 3183 1144437973P68 130 130 130 130 130 6847344311410574434488043PDimensions4470130 130 130 130 130 100 77804M107010068 130 130 130 130 130 130 130 68148.5 130100

183 1144437973P68 130 130 130 130 130 6811 installation of draw-out version■ Frame 347344311410574434488043PM107010068 130 130 130 130 130 130 130 68148.5 13010070130 130 130 130 130 100 77804708 17877130130130130106413013070130 100 7770100148.5 130Dimensions45

e a k i n g a n d p r o t e c t i o n d e v i c e sDPX 3moulded casecircuit breakersDPX “moulded case circuit breakers” offer optimumsolutions for the protection requirementsof commercial and industrial installations.They can be installed:- On DIN rail or plate up to 250 A- On plate up to 1600 AThe DPX 3 rangeMounting on DIN rail (or plate)with modular faceplateMounting on plate with special faceplateDPX 3 160 DPX 3 250 DPX 250 DPX 630 DPX 1600Thermal-magnetic and electronic releasesRatings from 16 to 250 AThermal-magnetic and electronic releasesRatings from 63 to 1600 ACircuit breakers are available in thermal magneticand electronic versions with nominal currentsfrom 16 to 1600 A and breaking capacities from16 to 70 kA. The main characteristics of DPX circuitbreakers are their optimised dimensions, their easeof installation, use and accessorisation, and theirundisputed reliability.DPX 3 160 and 250 and can be installed on aDIN rail and under a modular faceplate withwindow.Height spacer Cat. No. 262 99 can be used tocombine modular circuit breakers and DPX 3 onthe same rail.The DPX rangeThe DPX range also includes DPX-I trip-freecircuit breakers.46

1 Thermal magnetic DPXCircuit breakers equipped with thermal magneticreleases are used to set the thermal interventionthresholds for protection against overloads andthe magnetic intervention thresholds for protectionagainst short-circuits.The magnetic threshold setting option is available onall devices from the DPX 3 250 upwards. This thresholdis fixed on DPX 3 160 for DIN rail mounting.Thermal magnetic DPXs are available from 16 to 1250A with breaking capacities from 16 to 100 kA.2 electronic DPXDPXs equipped with microprocessor-based electronicreleases offer the option, depending on the version,of precise setting of both the time and current interventionthresholds for overloads, short-circuits andalso for earth faults.Electronic DPXs are available from 40 to 1600 A withbreaking capacities from 25 to 100 kA.Electronic releases are available in 2 versions:- S1: adjustment of Ir and Im- S2: adjustment of Ir, Tr, Im and TmDPX-H 630 - Electronic release SgIdentification of the typeIndication of contacts positionCharacteristics- Cat No.- Breaking capacity- Nominal current (rating)- StandardAdjustment of the neutral(0 - 0.5 - 1)Trip indicator lampsIndicator lamps - Green: normal operation- Continuous red: I < 0,9 Ir- Flashing red: I > 1,05 IrTest buttonSetting the releasesTest socketDynamic selectivity- Low- HighThe DPX range47

e a k i n g a n d p r o t e c t i o n d e v i c e sDPX moulded casecircuit breakers (continued)characteristicsDPX125DPX 3 160 DPX 3 250Number of poles 1P 3P - 4P - 3P+N/2 3P - 4P - 3P+N/2Type of MCCB 16 kA 16 kA 25 kA 36 kA 50 kA 25 kA 36 kA 50 kA 70 kANominal rating In (A) 16-125 16-160 25-100Rated insulation voltage Ui (V) 290 800 800Rated impulse withstandvoltage Uimp (kV)6 8 8Rated operatingvoltage Ue (V)Ultimatebreakingcapacity Icu(kA)AC 50/60 Hz 230 690 (500 with earth fault protection) 690 (500 with earth fault protection)DC (1) 250 250230/240 V AC 16 25 35 60 65 35 60 65 100400/415 V AC 16 25 36 50 25 36 50 70440 V AC 10 18 30 30 18 30 30 60480/500 V AC 8 10 25 15 10 25 15 40600 V AC 5 5 16 10 5 16 10 20690 V AC - - - - - - - -2 poles in series 250 V DC (1) 16 25 36 50 25 36 50 70Service breaking capacityIcs (% Icu)50 100 100 100 100 100 100 100 100Rating closing capacity on shortcircuit Icm (kA) at 400 V AC32 32 52.5 75.6 105 52.5 75.6 105 147Category of use A A A A A A A A AIsolation capability • • • • • • • • •thermal magnetic • • • • • • • • •Releaseelectronic S1characteristicsEarth leakagemodules (2)Endurance(o.c. cycle)Weight (kg)electronic S2side by sideintegrated • • • • • • • •underneathmechanical 25000 20000electrical 8000 80003P 1 1.2 1.24P 1.2 1.6 1.6(1) For voltages greater than 250 V DC: please contact us(2) Above 630 A, use of a relay with separate cores48

DPX 250DPX 250electronicDPX 630DPX 630electronicDPX 1250DPX 1600electronic3P - 4P - 3P+N/2 3P - 4P - 3P+N/2 3P - 4P - 3P+N/2 3P - 4P - 3P+N/2 3P - 4P - 3P+N/2 3P - 4P - 3P+N/236 kA 70 kA 36 kA 70 kA 36 kA 70 kA 36 kA 70 kA 100 kA 50 kA 70 kA 50 kA 70 kA40-250 40-250 40-250 40-250 250-630 320-630 250-630 400-630 400-630 800-1250 800-1250 800-1600 800-1600690 690 690 690 690 690 690 690 690 690 690 690 6908 8 8 8 8 8 8 8 8 8 8 8 8690 690 690 690 690 690 690 690 690 690 690 690 690250 250 - - 250 250 - - - 250 250 - -60 100 60 100 60 100 60 100 170 80 100 80 10036 70 36 70 36 70 36 70 100 50 70 50 7030 60 30 60 30 60 30 60 70 45 65 45 6525 40 25 40 25 40 25 40 45 35 45 35 4520 25 20 25 20 25 20 25 28 25 35 25 3516 20 16 20 16 20 16 20 22 20 25 20 2536 40 36 40 50 50100 75 100 75 100 75 100 75 50 100 75 100 7575.6 154 75.6 154 75.6 154 75.6 154 220 105 154 105 154A A A A A A A(250-400) / B(630 A) A A A A• • • • • • • • • • • • •• • • • • •• • • • • •• • • • • • •• • • • • • • • •20000 20000 20000 20000 15000 15000 15000 15000 15000 10000 10000 10000 100008000 8000 8000 8000 5000 5000 5000 5000 5000 4000 4000 3000 30002.5 2.5 from 4.5 to 5.8 from 5.3 to 5.8 18 183.7 3.7 from 6.4 to 7.4 from 6.8 to 7.4 23.4 23.4characteristics49

e a k i n g a n d p r o t e c t i o n d e v i c e sDPX moulded casecircuit breakers (continued)releasesThermal-magnetic DPX adjustment rangestIr1Ima Trip threshold foroverloads: Ir (thermal)b Trip threshold forshort circuits: Im (magnetic)2IDPX 3 160DPX3 250DPX 250 DPX 630 DPX 1600T (s)0.8 to 1 In 0.64 to 1 In 0.8 to 1 In 0.8 to 1 InT (s) IrFixed: 10 InT (s) Ir 3.5 to 10 T In (s) Ir5 to 10 In 5 to 10 InIrIsdI (A)T (s)IrImI (A)TrIsdIsdImTsdElectronic DPX adjustment rangesI (A)I (A)I (A)T (s)IrT (s)T (s) IrIrT (s)IrTrTrIsdImIsdIgIsdTsdTgTsdT (s) IrLiI (A)I (A) I (A)I (A)T (s)DPX 3 250 Lsi LsigTrOverload Ir 0,4÷1 (x In) step of 1A 0,4÷1 (x In) step of 1ATrTr 3-5-10-15 (s) 3-5-10-15 (s)IsdIgIsdShort-circuit IsdTsd1,5-2-2,5-3-4-5-6-7-8-9-10 (x Ir) 1,5-2-2,5-3-4-5-6-7-8-9-10 (x Ir)TsdTgI (A)0-0,1-0,2-0,3-0,4-0,5 (s) 0-0,1-0,2-0,3-0,4-0,5 (s)I (A)Tsd0,01-0,1-0,2-0,3-0,4-0,5 (s) a I 2 Irt=k 0,01-0,1-0,2-0,3-0,4-0,5 (s) a I 2 t=kT (s)Earth fault Ig - 0,2-0,3-0,4-0,5-0,6-0,7-0,8-1-OFF (x In)Tg - 0,1-0,2-0,5-1 (s)TrNeutral NIsd0-50-100% (I phase) 0-50-100% (I phase)IgDifferential I∆nTsd0,03-0,3-1-3 (A)Tg∆TI (A)0-0,3-1-3 (s)IrLsiLsigreleasesDPX 250 - 1600 Li Lsi LsigOverload Ir 0,4-0,5-0,6-0,7-0,8-0,85-0,9-0,95-1 (x In) 0,4-0,5-0,6-0,7-0,8-0,85-0,9-0,95-1 (x In) 0,4-0,5-0,6-0,7-0,8-0,85-0,9-0,95-1 (x In)Tr 5 (s) fixed at 6 Ir 5-10-20-30 (s) at 6 Ir 5-10-20-30 (s) at 6 IrShort-circuit Isd 1,5-2-2,5-3-4-5-6-8-10 (x Ir) 1,5-2-2,5-3-4-5-6-8-10 (x Ir) 1,5-2-2,5-3-4-5-6-8-10 (x Ir)0-0,1-0,2-0,3 (s) 0-0,1-0,2-0,3 (s)Tsd0,05 (s) fixed0,01-0,1-0,2-0,3 (s) a 12Ir a I 2 t=k 0,01-0,1-0,2-0,3 (s) a 12Ir a I 2 t=kEarth fault Ig - - 0,2-0,3-0,4-0,5-0,6-0,7-0,8-1-OFF (x In)Tg - - 0,1-0,2-0,5-1 (s)Neutral N 0-50-100% (I phase) 0-50-100% (I phase) 0-50-100% (I phase)Fixed instantaneus Isf 3 kA (250A), 5 kA (400-630A), 10 kA (630-800A),15 kA (1250A), 20 kA (1600A)3 kA (250A), 5 kA (400-630A), 10 kA (630-800A),15 kA (1250A), 20 kA (1600A)3 kA (250A), 5 kA (400-630A), 10 kA (630-800A),15 kA (1250A), 20 kA (1600A)50

Adjustment panels on releasesThermal-magnetic releasesS1Electronic releasesNeutralprotectionDynamicdiscriminationTrip threshold foroverloads (thermal)Trip threshold for shortcircuits (magnetic)Trip threshold foroverloads (long delay)Trip threshold for shortcircuits (short delay)S2NeutralprotectionDynamicdiscriminationShort delayoperation timeLong delayoperation timeAdvanced functionsThe electronic releases of DPX have a numberof innovative additional functions, depending onthe model.• Thermal memory: in the context of “long delay”protection, the release memorises the imageof the temperature rise produced by an overload.This “thermal memory” is refreshed regularlyif no other overload occurs. However, if there aresuccessive overloads, the effects are cumulativeand the operation time of the device will be proportionallyreduced. Protection of the cableis thus maintained.• Setting of the neutral current on the front panel(0%, 50%, 100% of the phase current).• Dynamic selectivity: makes use of the performanceof 2 devices in series.• Logical selectivity: a special link between two devicescan be used to assign an additional 50 ms delay tothe device installed upstream in order to give thedownstream device time to break the circuit (totalselectivity).• Load shedding function: when a device is crossed bya current greater than 105% of Ir it is possible, usingthe output contacts, to shed the non-priority circuits.The load shedding information is cancelled when thedevice’s load returns to less than 85% of Ir.• Signalling of the load on the device via LEDs on the frontpanel (green: normal; red continuous: I > 0.9 Ir.Red flashing: I > 1.05 Ir).• Connector on front panel for connecting a PC.• Self-protection if there is a microprocessor problem.releases51

e a k i n g a n d p r o t e c t i o n d e v i c e sDPX moulded casecircuit breakers (suite)Mounting, accessories and connection of DPXMain accessories for DPXConnection terminalsand accessoriesTerminal shieldsSpreadersRotary handleBase for plug-in versionand “debro-lift” mechanismfor draw-out versionRemote controlMounting, accessories and connection of DPXRear terminalsDPX mounting versionsFlat rear terminalsEarth leakage modulesMounting DPX 3 160 DPX 3 250 DPX 250 DPX 630 DPX 1600On its own On its own On its own+ Downstr.RCDOn its own+ Downstr.RCDOn its ownOn rail • •Front terminals • • • • • • •FixedRear terminals • • • • • • •Front terminals • • • • • •Plug-inRear terminals • • • • • •Front terminals • • • • •Draw-outRear terminals • • • • •On plate52

1 Plug-in and draw-out versionsWith the advantage of both plug-in and draw-outversions, DPXs - notwithstanding their ability to “makesafe” installations and devices - represent a significantdevelopment in the actual functions of this typeof device.1.1. Plug-in versionsPlug-in (or disconnectable) devices can be inserted orremoved without powering down the relevant circuit.Connection and disconnection are only possible whenthe device is open; otherwise, disconnection causesmechanical breaking of the device.Plug-in devices can, in simple situations, be used forisolation and making safe, but they are primarily usedfor their interchangeability, which makes maintenancemuch easier.They are sometimes designated by the letter Das “Disconnectable parts”.Plug-in versionComposition of plug-inand draw-out versionsBase + DPX + tulip contactsDraw-out version< DPX 250plug-in version,mounted on its basewith rear terminalsBase + “Debro-lift” mechanism + DPX + tulip contactsMounting, accessories and connection of DPX53

e a k i n g a n d p r o t e c t i o n d e v i c e sDPX moulded casecircuit breakers (suite)1.2. Draw-out versionsDraw-out devices, in addition to the advantagesof plug-in devices (interchangeability and visiblebreak isolation), can be used, due to the associated“debro-lift“ mechanism, to control connection anddisconnection, to enable tests and measurements onthe auxiliairy circuits while isolating the main circuits,to display the status of these circuits, and finally bymeans of different systems (padlocks, locks, etc) tolock the device for padlocking operations.Draw-out devices can be designated by the letter Was “Withdrawable parts”.< DPX 1600draw-outMounting, accessories and connection of DPX“Debro-lift” mechanismVery simple to install (two screws), the “debro-lift”mechanism is fixed on the support bases commonto the devices.The connection/disconnection operation is thenperformed mechanically by a crank mechanism.The mechanism determines three positions identifiedby different coloured indicators:• “connected”, main circuits and auxiliarycircuits connected, red indicator• “test”, main circuits isolated and auxiliarycircuits connected, yellow indicator• “drawn-out”, main circuits and auxiliarycircuits isolated, green indicatorIndicator signallingthe different positionsof the mechanism2 electrical Accessories2.1. Current shunt tripUsed to open the device remotely.It is always connected in series with an NOcontrol type contact.2.2. Undervoltage releaseWith or without a time delay, this causes the deviceto open during a significant reduction in or absenceof control voltage.Undervoltage releases can be equipped with a timelagmodule to avoid false tripping of the device whenthe release power supply voltage is not stable.The releases are mounted to the left of the controlswitch handle under the device cover.54

Characteristics of releasesCurrent UndervoltageType of release shunt trip releaseOperating voltage (% Un) 70 to 110 35 to 70Recovery voltage (% Un) - 85 to 110Operating time < 50 ms < 50 msInrush power consumptionAC (VA) 300 5DC (W) 300 1.62.3. Auxiliary contacts and fault signalcontactsThese are used for remote feedback of information onthe state of the circuit breaker. Auxiliary contacts (AC)indicate whether the device is open or closed, whereasfault signal contacts (FS) indicate that the device is inthe “tripped” position following operation of the protectionunit, an auxiliary release, the residual currentdevice, or following unplugging. The same product(Cat. No. 261 60) can be used to perform either theauxiliary contact or fault contact function, dependingon where it is mounted in the DPX.These contacts are mounted on the right of the controlswitch handle under the device’s cover.Characteristics of auxiliaryor fault signal contactsNominal voltage aC (V±) 24 to 230DC (V=) 24 to 230Permissible current (A) 110 V AC 4230 V AC 324 V DC 548 V DC 1.7Mounting auxiliaries on DPXElectrical auxiliaries are mounted on the frontpanel of the device, in reserved insulated compartments,with no action necessary on theinternal mechanism. The cables exit via theside or rear opening on the device.For plug-in and draw-out versions, the auxiliariesare connected on special connectors.TripsMaximum number of auxiliaries per DPXAC FS tripDPX 3 160, 250 1 1 1DPX 250 2 1 1DPX 630 2 2 1DPX 1600 3 1 1Auxiliary contactor fault signalMounting, accessories and connection of DPX55

e a k i n g a n d p r o t e c t i o n d e v i c e sDPX moulded casecircuit breakers (suite)2.4. Motor-driven controlsThese are used to control the opening and closing ofcircuit breakers remotely. They are mounted on the frontpanel of DPX. They can be fitted with locking devices.Adding a motor-driven control makes no differencewhat soever to the mounting or connection options orauxiliaries for the devices. For DPX 3 160 and 250 areavailable multivoltage motor driven installing side-byside or in frontal position.Characteristics of motor-driven controlsMccb’s DPX 3 160-250 DPX 250-630 DPX 1600Type pre-charging pre-charging pre-chargingInstallation frontal and lateral frontal frontal3 Supply invertorsSupply invertors can be created with all rangeof DPXs, using breakers or switches in fixed ordraw-out versions, available in 3 different versions:- Manual: the mounting plate, equipped witha mechanical interlock device, prevents thesimultaneous closing of the two devices it supports.A device can only close if the other deviceis open.- Remote control: the devices are equippedwith motor-driven control and their operationcan therefore be controlled remotely.- Automatic: an electronic control unit(230 V AC or 24 V DC) drives the invertor.Rated voltage24÷230 V AC/DCmulti voltage24-48 V AC/DC110-230 V AC24-48 V AC/DC110-230 V ACOpening time (ms) ≤ 90 ≤ 50 ≤ 50Closing time (ms) ≤ 100 ≤ 100 ≤ 50mechanical endurance (manouvres) 8000 10000 5000Absorbed power (peak) (W) 40 300 110 (460VA)Absorbed power (maintenance) (W) 4 - -< Control unitCat. No. 261 93, for controllingsupply invertorsMounting, accessories and connection of DPX56< DPX 3 250 mounted as supplyinvertors with motor-driven controls androtary handle

4 Connection of DPXNumerous accessories are available to meet all thevarious connection requirements. In addition to directconnection on a plate, they include terminals, distributionterminals, connection extensions, spreaders, rearscrew terminals or rear flat terminals, etc.All DPX can be supplied by either the upperor lower terminals without any derating oftheir performance.Available connection accessories according to device and versionVersion Connection DPX 3 160 DPX 3 250 DPX 250 DPX 630 DPX 1600Plates Fitted Fitted Fitted Fitted FittedCage terminals • • • • •Front terminalsHigh-capacityterminals • • •Connection extension • • • •FixedSpreaders • • • •Distribution terminalsPlug-inDraw-outRear terminalsThreaded • • • •Flat • •Flat shortFlat longFront terminals Plates • • • •Rear terminalsThreaded • • • •Flat • •Front terminals Plates • • •Rear terminalsThreaded • •Flat • •Flat•••Mounting, accessories and connection of DPX57

e a k i n g a n d p r o t e c t i o n d e v i c e sDPX moulded case circuit breakers (suite)The following tables give the connection capacities for the various accessories selected.Connection: maximum capacities for each poleBusbars Conductors Copper terminals Aluminium terminalsDeviceConnectionmethodstandard compact standard compactWidth Cross-sectionWidthWidthWidth (mm) Cross-sectionCross-section (mm 2 )S - Ø S - Ø S - Ø S - Ø(mm) (mm)(mm) (mm) (mm (mm 2 )(mm 2 )2 )2 ) 2 )S - S S Ø(mm - - ØS - Ø- 2 -mm) Ø S - S S Ø(mm - - ØS - Ø- 2 -mm) Ø S - S S Ø(mm - - ØS - Ø- 2 -mm) Ø S - S S Ø(mm - - ØS - Ø- 2 -mm) Ørigid flexible (mm (mm (mm 2 -mm) (mm 2 -mm)2 2 -mm) 2 -mm) (mm (mm (mm 2 -mm) (mm 2 -mm)2 2 -mm) 2 -mm) (mm (mm (mm 2 -mm) (mm 2 -mm)2 2 -mm) 2 -mm) (mm (mm (mm 2 -mm) (mm 2 -mm)2 2 -mm) 2 -mm)Direct on plate 18 50-6 50-8Cage terminalsCat. No. 421 026 - 421 02718 120 95DPX 3 160fixedversionExtended front terminalCat. No. 421 028 - 421 029SpreadersCat. No. 421 031 - 421 03220 70-10 185-10120 95Insulated shieldsCat. No. 421 070 Mounting, accessories and connection of DPXDPX 3 160plug-inversionRear terminalsCat. No. 421 036 - 421 037Base with front and rearterminalsCat. Nos. 421 040 - 421 04125 120-8 185-10 120-1025 120-8 185-10 120-1058

Connection: maximum capacities for each poleBusbars Conductors Copper terminals Aluminium terminalsstandard compact standard compactDeviceDPX 3 250fixedversionConnectionmethodWidthWidthWidthCross-sectionCross-section(mm)(mm)Width (mm) (mm (mm Cross-section(mm 2 )2 (mm )2 )2 )2 ) S S - S Ø- S - Ø- S Ø- Ø S S - S Ø- S - Ø- S Ø- Ø S S - S Ø- S - Ø- S Ø- Ø S S - S Ø- S - Ø- S Ø- Ø(mm)(mm 2 ) (mm (mm (mm 2 -mm)2 (mm 2 -mm)2 S 2 -mm)Ø(mm (mm (mm 2 -mm)2 (mm 2 -mm)2 S 2 -mm)Ø (mm (mm 2 (mm 2 2 S -mm)2 -mm)Ø (mm (mm 2 (mm 2 2 S -mm)2 -mm)Ørigid flexible(mm 2 -mm) (mm 2 -mm)(mm 2 -mm) (mm 2 -mm) (mm 2 -mm) (mm 2 -mm)Direct on plate 20 70-8Cage terminalsCat. No. 421 030 - 421 031SpreadersCat. No. 421 034 - 421 035Insulated shieldsCat. No. 421 070Rear terminalsCat. No. 421 038 - 421 03918 185 15032 185-12 300-10 240-12 300-10185-12 240-12DPX 3 250plug-inversionBase with front and rearterminalsCat. Nos. 421 042 - 421 043185-12 185-10 240-12 185-10Direct on plate 25 95-8 185-10 185-10Cage terminalsCat. No. 262 3518 185 150DPX 250fixedversionDPX 250plug-inor draw-outversionConnection extensionsCat. No. 262 32SpreadersCat. Nos. 262 33/34Distribution terminalsCat. No. 048 68Rear screw terminalsCat. Nos. 263 31/32Flat rear terminalsCat. Nos. 265 27/28Base with front terminalsCat. Nos. 265 31/32/37Base with rear screw terminalsCat. Nos. 265 33/34/38Base with flat rear terminalsCat. Nos. 265 35/36/39XL-Part 1600 baseCat. Nos. 098 25/26/27/2825 150-12 300-10 240-12 300-1032 185-12 300-10 240-12 300-104 x 35+ 2 x 2525 185-12 240-1225 95-10 185-10 150-12 185-102025 185-12 240-1225 95-10 185-10 150-12 185-1020 2 x 95-8 2 x 195-10 2 x 185-10 Mounting, accessories and connection of DPX59

e a k i n g a n d p r o t e c t i o n d e v i c e sDPX moulded case circuit breakers (suite)Connection: maximum capacities for each poleBusbars Conductors Copper terminals Aluminium terminalsstandard compact standard compact Mounting, accessories and connection of DPXDeviceDPX 630fixedversionDPX 630plug-in ordraw-outversionDPX 1600fixedversionDPX 1600draw-outversionConnectionmethodWidth WidthWidth Width Cross-sectionCross-section(mm) (mm) (mm)Width (mm) (mm (mm 2 (mm Cross-section)2 )(mm 2 )2 )2 ) S - S Ø- S Ø- - ØS - Ø S - S Ø- S Ø- - ØS - Ø S - S Ø- S Ø- - ØS - Ø S - S Ø- S Ø- - ØS - Ø(mm)(mm 2 ) (mm (mm 2 (mm -mm)2 -mm) (mm 2 -mm)2 S 2 -mm)Ø(mm 2 (mm -mm)2 -mm) (mm 2 -mm)2 S 2 -mm)Ø (mm (mm 2 -mm) (mm 2 -mm)2 S 2 -mm)Ø (mm (mm 2 -mm) (mm 2 -mm)2 S 2 -mm)Ørigide souple(mm 2 -mm) (mm 2 -mm)(mm 2 -mm) (mm 2 -mm) (mm 2 -mm) (mm 2 -mm)Direct on plate 32 150-12 300-10 240-12 300-10Cage terminals25 300 240Cat. Nos. 262 88Terminals for 2 conductorsCat. No. 262 51Connection extensions Cat. No. 262 47SpreaderCat. Nos. 262 48/49Rear screw terminalsCat. Nos. 263 50/51Flat rear terminalsCat. Nos. 263 52/53Base with front terminalsCat. Nos. 265 52/53/58Base with rear terminalsCat. Nos. 265 54/55/59Base with flat rear terminalsCat. Nos. 265 56/57/602 x 240 2 x 18532 2 x 150-12 2 x 300-10 2 x 240-12 2x 300-1050 2 x 185-12 2 x 300-10 2 x 240-16 2x 300-1032 2 x 300-16 2 x 300-1640 2 x 185-12 2 x 300-10 2 x 240-12 2 x 300-1025 150-12 300-10 240-12 300-1032 2 x 300-16 2 x 300-1640 2 x 185-12 2 x 300-10 2 x 240-12 2 x 300-10XL-Part 1600 baseCat. Nos. 098/71/72/73/7425 150-12 2 x 300-10 2 x 240-12 2 x 300-10Direct on plate 50 300-14 300-16Terminals for 2 conductorsCat. No. 262 69Terminals for 4 conductorsCat. No. 262 70Connection extensionsCat. Nos. 262 67/68SpreadersCat. Nos. 262 73/74Short rear terminalsCat. Nos. 263 31/32Long rear terminalsCat. Nos. 265 27/28Base with front terminalsCat. Nos. 265 31/32/37Base with rear terminalsCat. Nos. 265 33/34/382 x 240 2 x 1854 x 240 4 x 15850 2 x 300-14 2 x 300-16 2 x 300-1480 4 x 300-14 2 x 300-16 2 x 300-1450 2 x 300-14 2 x 300-16 2 x 300-1450 3 x 300-14 3 x 300-16 3 x 300-14504 x 120-122 x 300-144 x 185-10 2 x 300-14 4 x 150-1050 2 x 185-12 2 x 240-1260

earth leakage PROTECTIONAll DPX circuit-breakers up to 630 A for fitting onplates, can be fitted with earth leakage moduleswithout modifying their technical characteristicsand with the same options foraccessories.The circuit breakers DPX 3 160 and DPX 3250 are also available with earth leakageprotection integrated. TFor DPX 250 and630, the electronic module is always mountedunderneath. For DPX 1600, a residualcurrent relay with separate core is used.Residual current devices: see book 06 “Electrical hazards and protectingpeople”.DPX 3 250 with earth leakage protectionintegratedResidual current relays withseparate coreThese add a residual current function to DPXand DMX-E circuit breakers and switchesequipped with trip coils.Characteristics of electronic earth leakage protection for DPXDevice DPX 3 160 DPX 3 250 DPX 250 DPX 630Mounting integrated integrated underneath underneathNominal current In (A) 160 250 250 400/630Number of poles - - 4-3 4-3Width - - 140 183DimensionsDepth - - 105 105(mm)Height - - 108 152Nominal voltage Ue V AC (50-60 Hz) 500 500 500 500Operating voltage V AC (50-60 Hz) 230-500 230-500 230-500 230-500Sensitivity I∆n (A) 0.03-0.3-1-3 0.03-0.3-1-3 0.03-0.3-1-3 0.03-0.3-1-3Time delay ∆t(s) 0- 0.3-1-3 0- 0.3-1-3 0- 0.3-1-3 0- 0.3-1-3Detection of faultswith DC components• • • •Mounting on rail • •fixed, front terminals • •VersionsConnectionterminalsfixed, rear terminals • •Supplied with the DPX • •On request • • • •earth leakage PROTECTION61

e a k i n g a n d p r o t e c t i o n d e v i c e sDPX moulded case circuit breakers (suite)Special applications and deratingSpecial applications and derating1 Use in an IT systemIn an installation with an IT system, it is the breakingcapacity on one pole which must be taken into accountfor the 2nd fault current.Breaking capacity of a single poleat 400 V in accordance with EN 60947-2DPX 3 160DPX 3 250 ER9 kA9 kADPX 250 16 kA (1)DPX - H 250 20 kA (1)DPX 630 16 kA (1)DPX - H 630 20 kA (1)DPX 1600 20 kA (1)DPX - H 1600 25 kA (1)(1) Breaking capacity value on one pole, taken as being equal to thebreaking capacity at 690 V 3-phase. (art. 533.3 NF C 15-100)2 High temperaturesA circuit breaker is set to operate at In at an ambienttemperature of 40 °C for DPX circuit breakers (standardIEC 60947-2). When the ambient temperatureinside the enclosure where the DPX units are installedis higher than this value, the rated current should bereduced in order to avoid false tripping.2.1. Fixed versionThe minimum value of the rated current correspondsto the minimum setting of the Ir/In trip unit (0.8 forDPX 3 160 - 0.8 for DPX 400 - 0.4 for DPX 630 - 0.4 forDPX 1600).Derating for fixed version DPX (in A)depending on the thermal setting (Ir)according to the temperature in the enclosureThermalmagnetic MCCB In (A) 40°C 50°C 60°C 70°Cmin max min max min max min max16 11 16 10 15 10 14 9 1325 16 25 14 23 13 20 12 1840 25 40 23 36 20 32 18 2863 40 63 36 57 32 50 28 43DPX 3 16080 63 80 60 76 57 72 54 68100 63 100 58 91 52 82 48 73125 87 125 84 120 80 115 76 110160 100 160 93 145 83 130 73 115100 64 100 58 91 52 82 47 73DPX 3 250 160 102 160 93 145 83 130 74 115250 160 250 147 230 134 210 122 190100 63 100 58 91 52 82 48 73DPX 250 160 100 160 93 145 83 130 73 115250 160 250 147 230 130 210 115 190320 250 320 230 288 205 256 180 225DPX 630400 320 400 288 360 256 320 225 280500 400 500 380 480 360 450 340 420630 500 630 480 600 450 570 420 540800 630 800 600 760 570 720 540 680DPX 1600 1000 800 1000 760 950 720 900 680 8501250 1000 1250 950 1190 900 1125 850 1080Electronic MCCB In (A) 40°C 50°C 60°CDPX 250 250 250 250 238DPX 630DPX 1600400 400 400 380630 630 600 567800 800 760 7601250 1250 1188 11251600 1600 1520 144062

2.2. Plug-in and draw-out versions:Apply a reduction coefficient of 0.85 to the maximumfound value of the rated current.2.3. Version with earth leakage module:Apply a reduction coefficient of 0.9 to the maximumfound value of the rated current.Apply a coefficient of 0.7 if the two versions aresimultaneous.3 DC power supplyThermal-magnetic DPX can also be used up to anoperating voltage of 250 V DC (three poles in series).Their magnetic thresholds are then increased by 50%(see table below). For voltages greater than 250 V DC,please contact us.Mccb’sDPX 3 160DPX 3 250 Breaking capacities and protection thresholdsof DPX with DC supply25 kA50 kA25 kA50 kABreaking capacity Icu (kA)2 poles in serieIn (A) 110-125 V DC 250 V DC thermal% IrProtectionthresholdsmagnetic% Im63-160 30 25 100 % 150 %25-160 50 36 100 % 150 %100-250 30 25 100 % 150 %160-250 50 36 100 % 150 %DPX 250 36 kA 63-250 40 36 100 % 150 %DPX-H 250 70 kA 40-250 45 40 100 % 150 %DPX 630 36 kA 320-630 40 36 100 % 150 %DPX-H 630 70 kA 320-630 45 40 100 % 150 %4 400 Hz power supplyThe stated characteristics for the devices assume afrequency of 50/60 Hz. They should be corrected foruse at 400 Hz.For DPXs, the correction factors given in the tableopposite are to be applied when adjusting the thermaland the magnetic settings.Device typeCorrection factors to be applied whensetting thermal-magnetic trip DPXs.for use at 400 HzIn (A)Thermal settingCorrectionfactorIr maxat 400 HzMagnetic settingCorrectionfactorImat 400 HzDPX 3 160 25 1 25 2 180÷50063 0,95 60 2 440÷1250100 0,95 95 2 700÷2000DPX 3 250160 0,9 145 2 1120÷3200250 0,85 210 2 1800÷500025 1 25 2 180÷50040 1 40 2 280÷800DPX25063 0,95 60 2 440÷1250100 0,95 95 2 700÷2000160 0,9 145 2 1120÷3200250 0,85 210 2 1800÷5000250 0,85 210 1 1250÷2500320 0,85 270 1 1600÷3200DPX630400 0,8 320 1 2000÷4000500 0,8 400 1 2500÷5000630 0,8 500 1 3200÷6300500 0,6 300 1 2500÷5000630 0,6 380 1 3200÷6300DPX1600800 0,6 480 1 4000÷80001000 0,6 600 1 3000÷60001250 0,6 750 1 3800÷7500Special applications and derating63

e a k i n g a n d p r o t e c t i o n d e v i c e sDPX moulded case circuit breakers (suite)Thermal magnetic curvesDPX 3 160DPX 3 250DPX 250100001000010000t(s)t(s)t (s)100010001000110010110010110021212100,1In= 40-160AIi=10 x InIn= 25AIi=16 x In0,1In= 100-250AIi=5...10 x In10,01In= 16AIi=25 x In0,010,10,0011 10 100I/IrI/In0,0011 10 100I/Ir0,011 2 3 4 5 10 20 30 50 100I/IrDPX 630DPX 16001000010000630 - 800 A 1000 - 1250 A10000t (s)t (s)t (s)100010001000111100100100222Thermal magnetic curves1010,10,011 2 3 4 5 10 20 30 50 100I/Ir1010,10,011 2 3 4 5 10 20 30 50 100I/Ir1: thermal tripping zone when cold - 2: thermal tripping zone when hot1010,10,011 2 3 4 5 10 20 30 50 100I/Ir64

electronic curvesDPX 3 250 electronicDPX 250 electronic1000010000t (s)10001000100Tr=15s(±20%)100Tr=10s(±20%)Tr=5s(±20%)Tr=5s±20%10Tr=3s(±20%)10Im=1,5Ir±20%Isd=1,5Ir(±20%)1Tsd=0,5s(±20%)In=250AIn=40A1Im=10Ir±20%In=250AIn=100A0.1I²t=K0,1Tsd=0s(±20%)HIGH selectivityLOW selectivitySelettività HIGH0.01t < 10ms0.0011 10 100 1 10 100I / IrI / In0,01In=160A0,0010,5 1 2 3 4 5 10 5 10 20 30 40 50 100 150 200I/IrI/InSelettività LOWGround faultDPX 250 electronic10 4t (s)10 30,2...1 Int = Cost10000t (s)1000Tr=30s±20%Tr=20s±20%10 2100Tr=10s±20%Tr=5s±20%I 2 t = Cost1010 1 11Im=1,5Ir±20%I2t = KIm=10Ir±20%In=250AIn=100A10 -210 -30,1...1 s0,10,010,0010,5 1 2 3 4 5 10 5 10 20 30 40 50 100 150 200I/IrIn=160AI/InSelettività HIGHSelettività LOWelectronic curves10 -1 10 -1 1 10 10 2Ig/In65

e a k i n g a n d p r o t e c t i o n d e v i c e sDPX moulded case circuit breakers (suite)ELECtronic curves10000t (s)DPX 630 electronic100010010Tr=5s±20%1Im=1,5Ir±20%Im=10Ir±20%In=630AIn=250A0,1Selettività HIGH0,01Selettività LOWIn=400AIn=160A0,001 0,5 1 2 3 4 5 10 5 10 20 30 40 50 100 150 200I/IrI/InDPX 630 electronic10000t (s)1000Tr=30s±20%Tr=20s±20%100Tr=10s±20%Tr=5s±20%10Im=1,5Ir±20%Im=10Ir±20%1I2t = KIn=630AIn=250AELECtronic curves0,10,010,001In=400AIn=160ASelettività HIGHSelettività LOW0,5 1 2 3 4 5 10 5 10 20 30 40 50 100 150 200I/IrI/In66

DPX 1600 electronic10000t (s)100010010Tr=5s±20%Im=1,5Ir±20%1Im=10Ir±20%In=800-1250-1600A0,1Selettività HIGH0,01Selettività LOWIn=630A0,001 0,5 1 2 3 4 5 10 5 10 20 30 40 50 100 150 200I/IrI/InDPX 1600 electronic10000t (s)1000100Tr=30s±20%Tr=20s±20%Tr=10s±20%Tr=5s±20%10Im=1,5Ir±20%Im=10Ir±20%1I2t = KIn=1250-1600AIn=630A0,10,010,001Selettività HIGHIn=800ASelettività LOW0,5 1 2 3 4 5 10 5 10 20 30 40 50 100 150 200I/IrI/InELECtronic curves67

e a k i n g a n d p r o t e c t i o n d e v i c e sDPX moulded case circuit breakers (suite)Energy curvesDPX 3 160DPX 3 250DPX 3 250 eletronic10 1010 10I 2 t (A 2 s)10 10I 2 t (A 2 s)10 910 910 910 810 810 810 710 710 710 610 610 6In=160-250A10 510 5In=200-250A10 5In=100 -160A10 4In=63 - 80AIn=16 - 40A10 310 210 1100 101 102 103 104 105Icc (A)10 4In=100-160A10 310 210 110 0100 101 102 103 104 105Icc (A)In=40-100A10 410 310 210 110 0100 101 102 103 104 105Icc (A)DPX 250DPX 63010 9I 2 t (A 2 s)10 816010010 9I 2 t (A 2 s)10 816010025010 10I 2 t (A 2 s)10 9500 6304003206325010 7254070kA36kA10 7100kA70kA36kA10 810 610 610 7100kA70kA36kA10 510 510 6Energy curves10 410 310 1 10 2 10 3 10 4 Icc (A)10510 410 310 1 10 2 10 3 10 4 Icc (A)10510 510 410 1 10 2 10 3 10 4 Icc (A)10568

DPX 250 electronicDPX 630 electronicDPX 1600 electronic10 10I 2 t (A 2 s)10 910 8I 2 t (A 2 s)10 8I 2 t (A 2 s)MAMH10 810 710 610 7MAMHML160, 630A High160, 630A low10 7630, 800AHigh Base630, 800ALow BaseIn=160-250A10 5In=40-100A10 610 610 410 310 210 510 510 110 0100 101 102 103 104 105Icc (A)10 410 3 10 4 10 5 10 610 410 3 10 4 10 5 Icc (A)10 6DPX 160010 10I 2 t (A 2 s)10 980063050010 10I 2 t (A 2 s)10 910 10I 2 t (A 2 s)10 910 810 81000 1250 100kA70kA50kA10 850kA70kA10 7100kA70kA50kA10 710 710 610 610 610 510 410 1 10 2 10 3 10 4 Icc (A)10510 510 410 1 10 2 10 3 10 4 Icc (A)10510 510 410 1 10 2 10 3 10 4 Icc (A) 10 5Energy curves69

0,50,5b r e a k i n g a n d p r o t e c t i o n d e v i c e sDPX moulded case circuit breakers (suite)Limitation curvesDPX 3 160DPX 3 250DPX 3 250 eletronic1031031035554443332Ip (kA)0,22Ip (kA)0,22Ip (kA)0,210 25430,3 0,25In=100 -160A10 25430,3 0,25In=200 -250A10 25430,3 0,25In=160 -250A2In=63 - 80A220,50,5In=100 -160A0,5In=40-100 A10 1540,8 0,7In=16 - 40A10 1540,8 0,710 1540,8 0,730,930,930,922210 210 30 40 50 10 1 20 3 4 5 20Icc (kA)10 20 3 4 5 2010 1 30 40 50 10 2Icc (kA)10 210 30 40 50 10 1 20 3 4 5 20Icc (kA)DPX 250DPX 630200IP (kA)0,2200IP (kA)0,2200IP (kA)0,50,21005040302036kA0,3 0,2570kA63÷160A100504030200,3 0,25100kA70kA30kA100504030200,3 0,25100kA70kA36kALimitation curves10543210,9 0,8 0,725÷40A1 2 3 4 5 10 20 30 40 50 100Icc (kA)10543210,9 0,8 0,71 2 3 4 5 10 20 30 40 50 100Icc (kA)10543210,9 0,8 0,71 2 3 4 5 10 20 30 40 50 100Icc (kA)70

0,50,5DPX 1600Earth leakage200IP (kA)0,2200IP (kA)0,2t (s)1051005040300,3 0,2550kA70kA100kA1005040300,3 0,2550kA 70kA100kA2120200,5105430,9 0,8 0,7105430,9 0,8 0,70,20,10,05220,0211 2 3 4 5 10 20 30 40 50 100Icc (kA)11 2 3 4 5 10 20 30 40 50 100Icc (kA)0,010,1 0,5 1 5 10 50 100 50 100 500I/Idn Idn (A)Earth leakage1010100t (s)t (s)t (s)5550222011100,50,550,20,220,10,050,020,010,1 0,5 1 5 10 50 100 50 100 500I/Idn Idn (A)0,10,050,020,010,1 0,5 1 5 10 50 100 50 100 500I/Idn Idn (A)10,50,20,10,1 0,5 1 5 10 50 100 50 100 500I/Idn Idn (A)Limitation curves71

e a k i n g a n d p r o t e c t i o n d e v i c e sDPX moulded case circuit breakers (continued)DIMENSIONS1 DPX 3 160-250n Fixed version, front terminalsONDCFHLMIPAAGBIPONEA B C D E F G H I L M N O P3P 81 130 115 45 27 62,5 110 72,5 102,5 125 - 74 100 184P 108 130 115 45 27 62,5 110 72,5 102,5 125 - 74 100 18ELP 108 160 145 45 27 62,5 140 72,5 102,5 125 - 74 100 18n Fixed version, rear terminalsAONBCGDLMIACDGBFHELMIn Fixed version, front terminals with earth leakagemodule mounted side by siden Fixed version, rear terminals with earth leakagemodule mounted side by sideLMONABCGDEDIMENSIONSA B C D E F G H I L M N O P3P 81 208 193 45 27 100,5 186 111,5 141,5 164 - 122 148 -4P 108 238 223 45 27 100,5 216 111,5 141,5 164 - 122 148 -ELP 108 230 223 45 27 100,5 216 111,5 141,5 164 - 122 148 -E72

PONAACDGBFHIMLEA B C D E F G H I L M N O P3P 105 165 142,5 45 35 61,5 123 82,5 112,5 150 - 74 100 184P 140 165 142,5 45 35 61,5 123 82,5 112,5 150 - 74 100 18ELP 140 195 172,5 45 35 61,5 153 82,5 112,5 150 - 74 100 18n Fixed version, front terminals with earth leakagemodule mounted underneath (1)n Vari-depth handle on doorLMIONABCGDMLIPONACDFHELGBIn Terminal shieldsn Direct rotary handle on DPXONABCGDMEEA B C D E F G H I L M N O3P 105 248 225,5 45 35 103 206 150 180 217,5 - 122 1484P 140 278 225,5 45 35 103 236 150 180 217,5 - 122 148ELP 140 278 225,5 45 35 103 236 150 180 217,5 - 122 148ELP: EARTH LEAKAGE PROTECTIONDIMENSIONS73

e a k i n g a n d p r o t e c t i o n d e v i c e sDPX moulded case circuit breakers (continued)1 DPX 3 160-250n Fixed version, front terminalsn Frontal motor drivenY180154ACA B C D160 35 41 23 33160 ELP 35 41 23 33250 48,5 55 23 39250 ELP 48,5 55 23 39n Fixed version, rear terminalsn Lateral motor drivenDIMENSIONSDBX99X504539,594= =11480,5Y128232225201YXX45143XX45,5Y12 18,2592,5200,5102,7YNLMXX45143XXY139,580,573,5220,5102,774

In Direct rotary handle on DPXn Vari-depth handle on doorEFLRESET0RA B C D E F GHminHmaxI L M160 122 57 155 94 80,5 36,5 41,7 132 361 62 74 45160 ELP 122 57 155 94 93 36,5 41,7 132 361 62 74 45250 122 57 155 94 80,5 40,5 41,7 132 361 62 74 45250 ELP 122 57 155 94 93 40,5 41,7 132 361 62 74 45250 ELET. 122 57 155 94 93 40,5 41,7 132 361 62 74 45250 ELET. ELP. 122 57 155 94 93 40,5 41,7 132 361 62 74 45A H min/max IA B C D E F G H160 125 54,5 154 94 80,5 99 45 74160 ELP. 125 54,5 154 94 93 99 45 74250 125 54,5 154 94 80,5 99 45 74250 ELP. 125 54,5 154 94 93 99 45 74250 ELET. 125 54,5 154 94 93 99 45 74250 ELET. ELP. 125 54,5 154 94 93 99 45 74EEDIMENSIONSGDFBGMDBCAC75

BREAKING AND PROTECTION DEVICESDPX moulded casecircuit breakers (continued)2 DPX 250■ Fixed version, front terminals■ Plug-in version, front terminals105100351407017,517105364 mini10520140 186.532.5113344 min.20094173,5170M510341.594245.5■ Fixed version with earth leakage module mountedside by side (1) Front terminals Rear terminals■ Plug-in version, rear terminalsDIMENSIONS2009066.52535 3552,535 35 3527138,5Ø935 3535 35 3515314024 52,511 36138,5105138,5105 4 mini10510035140186,51534 mini10094103082781020094173,5173,59066,5281,535 3552,535 35 35153357017,5M52776

15524,75■ Draw-out version, front terminals99,59434187343445,532,566,590X140 (4P)105 (3P)20 52,353424.7524.7599.515599.5155■ Draw-out version, rear terminalsRear terminal with threaded rod18734 34 45.5Flat rear terminals18734 34 45.5■ Terminal shields■ Direct rotary handle on DPX and vari-depthhandle on door10040265 max. 71.593 min.58ADPX 250 330DPX 250 + earth leakage modulemounted side by side438DIMENSIONSA50252.5 max.2/494949466.566.59090108.75173.5108.75173.547.593.593.58126353535 35 3535 3519Ø 9261010M12M1247.53735 35 3519 Ø 93781353,5144,753135124,535 35 35Y192,75Ø 9449,577

BREAKING AND PROTECTION DEVICESDPX moulded casecircuit breakers (continued)3 DPX 630■ Fixed version, front terminals■ Plug-in version, front terminals14032 70321837017144105 4 mini50140183 15332 7029100 1009422026094■ Plug-in version, rear terminalsDIMENSIONS15 maxi15 maxi398100 1009430294220130X43,543,5 43,543,587M543,5 43,5274 min.Ø1443.543.5 43.543.543.5321837021.7514410517 504 min.144105 4 min.10094192■ Fixed version with earth leakage module mountedside by sideFront terminals Rear terminals140 18370100 1001921532659422094130X4123723724 mini87Ø6 orM543.5 43.5 43.5 2778

■ Draw-out version, front terminals■ Terminal shields5130 1833445.5 342934AA26530239826513094155XDPX 630 390DPX 630 + earth leakage modulemounted side by side5421424.743.5 43.5 43.5Y187■ Draw-out version, rear terminalsRear terminal with threaded rod45,5 343443,5 43,5 43,5■ Direct rotary handle on DPX and vari-depthhandle on door1005040265 max. 71.593 min.58M 16DIMENSIONS9422047130941551035818724,72.5 max. 2/4Flat rear terminal45,5 343443,5 43,582201309415512429155918724,779

BREAKING AND PROTECTION DEVICESDPX moulded casecircuit breakers (continued)4 DPX 1600■ Fixed version, front terminalsY21070 702570Y28070 7021529813 miniX100149280320169■ Fixed version, rear terminalsDIMENSIONS941582982782025 maxiXM125070YM1014035M85 140Y280 (4P)VerticalHorizontal210 (3P)10513322314012,51639814012,5904012X10094169320273145,511868M8273145,59456XY40141332323862,5 max188323862,5 max80

■ Draw-out version, rear terminalsTerminal shields29925636432534.5■ Direct rotary handle on DPX■ Vari-depth handle on doorDIMENSIONS48012562,54967,512562.5265 max.93 min.8112566,512566.532536070707070 70253218.52,5 maxi2/481

BREAKING AND PROTECTION DEVICESDPX moulded casecircuit breakers (continued)7 MINIMUM MOUNTING DISTANCESF F F FA/BGCD D EDIMENSIONS82

NominalratinginsulatingwallMinimum distancesdistance betweentwo MCCBsMCCBmass wallmass wall metal side panel doorIn (A) A (mm) B (mm) C (mm) D (mm) E (mm) F (mm) G (mm)DPX 3 160 63 to 160 60 30 20 20 0 100 0DPX 3 250 ER 100 to 250 60 30 20 20 0 100 0DPX 250 40 to 250 70 25 25 25 0 140 0DPX 630 250 to 630 70 25 25 25 0 160 0DPX 1600 800 to 1600 90 40 40 40 0 160 0DIMENSIONS83

BREAKING AND PROTECTION DEVICESDRX moulded casecircuit breakersDRX “moulded case” devices providean intermediate solution between the DPXand the LR, DX-E and DX range of modularcircuit breakers, which makes it a universalcircuit breaker.THE DRX RANGEDRX 100 DRX 2501P, 2P, 3P and 4P from 15 A up to 100 A 3P and 4P from 125 A up to 250 AThe simplicity of the DRX range makes these circuitbreakers the natural choice for the least complexinstallations where there is no requirement foradaptability.DRX circuit breakers can be mounted on a DIN railusing an adaptor plate.They have an integrated thermal-magnetic releasewhose operating values (thermal and magnetic) arefactory set and cannot be changed.These protection devices are for use in installationsthat do not require discrimination or combination ofdevices, or any additional protection (such as earthleakage module).They are certified as conforming to IEC 60947-1-2-3and CCC standards, and are Nema, JIS and KSapproved.DRX circuit breaker: safety and simplicityElectrical auxiliariesmounted by clipping onfront panelTHE DRX RANGE8450 mm 45 mmExclusive system: with asingle action, change fromthe 50 mm standard to the45 mm DIN standard

Sealable terminal shieldsAccessoriesCage terminalsShunt trip orundervoltagereleaseAuxiliary contactblocksPlate for fixing DRXon rail 2Padlocking system(up to 3 padlocks inoff position)Direct and vari-depthrotary handleTECHNICAL CHARACTERISTICS1 ELECTRICAL FEATURESDRX 100 DRX 250Rated operating voltage Ue 600 V AC - 50/60 Hz 600 V AC - 50/60 HzRated insulation voltage Ui 690 V AC - 50/60 Hz 690 V AC - 50/60 HzRated impulse withstand Voltage Uimp 6 kV 6 kVCategory of use A ANominal rating at 40°C In (A) 15-20-25-30-40-50-60-75-100 125-150-175-200-225-250Thermal current value Ir In (fixed) In (fixed)Magnetic current value Im 10 In (fixed) 10 In (fixed)Ultimate breaking capacities Icuat 380-415 V AC10 kA, 20 kA, 35 kA 18 kA, 25 kA, 36 kATECHNICAL CHARACTERISTICS85

BREAKING AND PROTECTION DEVICESDRX moulded casecircuit breakers (continued)2 CONNECTIONMaximum capacities for each poleBusbars Conductors Copper terminals Aluminium terminalsStandard Compacts Standard CompactsDeviceDRX 100DRX 250ConnectionmethodWidth(mm)Cross-section(mm 2 )rigidFlexibleS - Ø(mm 2 -mm)S - Ø(mm 2 -mm)S - Ø(mm 2 -mm)S - Ø(mm 2 -mm)Direct on plate 17 16-8 35-8 50-8Cage terminals 50 35Direct on plate 25 95-10 120-10Cage terminals 150 1203 DIMENSIONS■ DRX 10025502575252510037.56053.511550 (45)11113011550 (45)1111306624TECHNICAL CHARACTERISTICS■ DRX 25016514412610250 (45)35105353517.53514035 3535 3517.586

4 TRIPPING CURVESDRX 100DRX 2501000010000t(s)t(s)100010010140-50-60-75-100A30A25A20A15A100010010Cold thermaltrip zone211Hot thermaltrip zone0.10.10.010.010.0011 2 3 4 5 10 20 30 50 100I/Ir0.0011 2 3 4 5 10 20 30 50 100I/Ir5 CURRENT LIMITATION CURVESDRX 100DRX 250Enerav let-through (kA 2s)10001001011BNUe=380÷415VH75÷100 A50÷60 A15÷40 A10100Prospective current (kA r.m.s.)Enerav let-through (kA 2s)10001001011200÷250 A125÷175 ABNUe=380÷415V10100Prospective current (kA r.m.s.)HTECHNICAL CHARACTERISTICS87

BREAKING AND PROTECTION DEVICESLexic DX 3 modularcircuit breakersLegrand Lexic modular circuit breakers offeran extensive range of characteristics and canbe used to organise distribution in rows asrequired, up to 125 A.It is the ideal universal solution for allcommercial and residential installations.THE LEXIC DX 3 MODULAR RANGEThe Legrand DX 3 range of circuit breakers is comprehensive,versatile, flexible and suitable for allsegments. It has been designed for the convenienceof users and installers.DX circuit breakers are available with B, C and Dcurves and ratings ranging from 0.5 to 125 A, withbreaking capacities from 10 kA to 50 kA.They can take signalling and control auxiliaries, whichare common to the whole range, and also adaptableearth leakage modules.Most of the devices are fitted with a double clip thatenables them to be dismantled independently of oneanother. Connecting them is totally safe, using IP 2xterminals with tightening on the front panel.The control switch handle has a red-green ON-OFFindicator.Their performance in combination with other devicesis excellent.They undergo rigorous individual inspection and arecertified by numerous certification bodies.The breaking capacities are given in accordance withstandards IEC 60898-1 and IEC 60947-2.DX 3 circuit breakers:1 module per poleup to 63 A …1.5 module per polefrom 80 to 125 AAir-conditioningTHE LEXIC DX3 MODULAR RANGEIdentification of thecircuits using theintegrated labelholder providesconvenience andsafety for users88

Front panel, marking and dimensions of modular circuit breakers18 mm18 mm1 module per pole up to 63 Aand 1.5 modules from 80 to 125 AControl handleI - ON / redO - OFF / greenDX 3 2-pole MCBCircuit breakers handle with colouredlabel to identify the breaking capacity:10kA16kA25kA36kA50kAEACharacteristicsDX 3 2-pole RCCBGD45BCFThermal-magnetic MCBsup to 63 AThermal-magnetic MCBsfrom 80 to 125 AEarth leakage modules< 63 AEarth leakage modulesfrom 80 to 125 ABAC D E F G1P 1P+N 2P 3P 4P70 17.7 35.6 53.4 71.2 60 83 44 76 9470 26.7 53.4 80.1 106.8 60 83 44 76 8970 35.6 53.4 53.4 60 93 44 76 9970 17.7 71.1 107.2 107.2 60 88 44 76 89DX 3 add-on moduleTHE LEXIC DX3 MODULAR RANGE89

BREAKING AND PROTECTION DEVICESLexic DX 3 modularcircuit breakers (continued)CHARACTERISTICS OF DX 3 CIRCUIT BREAKERSDX 3 10000 - 16 kADX-D 15 kACurves B, C and D DPoles 1P (1) 2P 3P 4P 2P 3P 4PRated current In (A) at 30°C 80 to 125 1 to 63 1 to 63 1 to 63Breaking capacity Icn (A) for IEC 60898-1Breaking capacity127/230 VA and 230/400 VA(230 VA for Ph+N)10000 15000Breaking capacity Icu (kA) for IEC EN 60947-2230/400 VA (tri-phase) -1615 to 10230 VA (between Ph and N)or tri-phase 230 V16 32 25 to 20Operating characteristicsRated frequencyRated insulation voltage UiRated impulse withstand current Uimp50/60 Hz500 V4 kVRated voltage 230/400 V 230/400 VProtection classes IP 20 - IK 02Endurance (operating cicles) electrical/mechanical 10000/20000N° of modules 1,5 3 4,5 6 2 3 4FunctionsCHARACTERISTICS OF DX3 CIRCUIT BREAKERSIsolation with positive break indicationOperating temperatureState of contacts visible by light - I-ON red = trip 0r OFF green = opencontactsDe -25°C to +70°CState of contacts visible directly on handle position - I-ONred = trip 0r OFF green = open contactsEarth leakage modules • •Auxiliary • •Remote controlConnection with combs • •Handle interlockBlock in open position or trip position (with accessories)Standards IEC 60898-1 and IEC 60947-2 IEC 60947-2(1) 1P Curve C only(2) 10A, Please contact us•90

DX 3 25 kADX 3 -MA25 kADX 3 36 kADX 3 50 kADX 3 MA50 kAB C D Magnetic only C B C D Magnetic only2P 3P 4P 1P 2P 3P 4P 2P 3P 4P 3P 4P 2P 3P 4P 2P 4P 2P 3P 4P 2P 3P 4P 3P 4P40 to6332 to6332 to12532 to12540 to12532 to12532 to12532-4016 to12516 to12512,5 to6316 to6310 to8010 to8010 to8010 to4010 to6310 to6310 to6310 to6310 to4010 to6310 to63Breaking capacity25000 25000 36000 50000 5000025 25 36 50 5050 50 72 100 100Operating characteristics50/60 Hz500 V4 kV230/400 V 230/400 V 230/400 V 230/400 V 230/400 VIP 20 - IK 0210000/200003 4,5 6 1.5 3 4,5 6 3 4,5 6 4,5 6 3 4,5 6 3 6 3 4,5 6 3 4,5 6 4,5 6FunctionsState of contacts visible by light - I-ON red = trip 0r OFF green = opencontactsState of contacts visible by light - I-ON red = trip 0r OFF green = open contactsDe -25°C to +70°C• • • • • • •• • • • •Block in open position or trip position (with accessories)EN 60947-2CHARACTERISTICS OF DX3 CIRCUIT BREAKERS91

BREAKING AND PROTECTION DEVICESLexic DX 3 modularcircuit breakers (continued)AUXILIARIES AND MOTOR-DRIVEN CONTROLS FOR DX 3AUXILIARIES AND MOTOR-DRIVEN CONTROLS FOR DX3Each device can take up to 3 auxiliaries: 2 signallingauxiliaries + 1 control auxiliary or a motor-drivencontrol.1 CURRENT SHUNT TRIPSThese are common to DX 3 circuit breakers, RCBOs,RCCBs and DX-IS isolating switches.They are used to trip the device remotely. They arealways connected in series with an NO contact.Nominal voltage : - 12-48 V AC/DC- 110-415 V AC/110-125 V DCTolerance on nominal voltage: 0.7 to 1.1 Un2 UNDERVOLTAGE RELEASESThese are common to DX 3 circuit breakers, RCBOs,RCCBs and DX-IS isolating switches. They trip thedevice when there is a significant reduction or totalabsence of control voltage, with a time delay adjustablefrom 0 to 300 ms.Nominal voltage : 230 V ACMinimum voltage: 0.55 Un ± 10%3 AUXILIARY CONTACTSAND FAULT SIGNAL CONTACTSThese are used for remote feedback of information onthe state of the circuit breaker. Auxiliary contacts (AC)indicate whether the device is open or closed, whereasfault signal contacts (FS) indicate that the device isin the “tripped” position following operation of theprotection unit, an auxiliary release or a residualcurrent device.Permissible current: 6 A at 250 V AC, 3 A at 400 V AC,4 A at 24 V DC, 1 A at 60 V DC and 0.5 A at 230 V DC4 MOTOR-DRIVEN CONTROLSThese can be used with DX 3 circuit breakers (except1-Pole) and RCBOs < 63 A.They are used to open and close the circuit breakersremotely.They incorporate signalling and fault signallingfunctions.Nominal control and supply voltage Uc: 230 V ACOperating voltages: From 0.85 Uc to 1.10 UcNominal frequency: 50 HzDoes not operate at 60 Hz or with DC supplyMinimum time between 2 successive commands:1 s up to 10 consecutive commands, 10 s thereafterPower consumption in rest mode: 5 WMaximum power consumption: 30 VA for breakingor makingMinimum control pulse duration: 20 msCircuit breaker opening or closing time at Uc: < 1 sThe module for use with the circuit breaker,Cat. No. 073 83, meets requirements for continuityof service by giving the reset commandautomatically.Auxiliaries and motor-driven controlsare mounted on the left-hand side ofthe devices92

NL1 L2 L3NL3L2L15 STOP&GO MOTOR-DRIVENCONTROLSCan be used with Lexic DX 3 circuit breakers and RCBOs< 63 A with screw terminals.They automatically reset the devices with which they areused, in the event of false tripping after a transient fault,eg: lightning (applications: air cond., fridges, etc.)The status of the installation is checked beforeresetting. Any permanent fault (residual current faultor short circuit) is indicated by an audible alarmand an indicator light.Control voltage: 230 V AC< STOP&GO motor-driven controlsrestore the current totally safely in theevent of false trippingCONNECTING DX 3All the devices are available with incoming andoutgoing screw terminals, which take rigid or flexiblecables as well as copper prong-type busbars.Connection cross-section of screw terminalsDistribution via prong-type busbar may beimplemented using the upper or the lowerterminals on DX 3 devices, according to localwork practices.Copper cable rigid flexibleDX 3 and earth leakage modules < 63 A 35 mm 2 25 mm 21 3 51 3DX 3 and earth leakage modules80÷125ADX 3 with 25-36-50 kA 1,5 modulesper pole70 mm 2 50 mm 2Auxiliaries 2.5 mm 2 2.5 mm 2DX 3 -ID63A30mAI 63ADX 3 6kAC10DX3 Ue 400VC20 Ith25A6kA041 57DX 3 6kAC102 4 6230VA1A2 A1 A2041 67250V16AXFor the connection of new range DX 3 it is possible usecombs with pin on forward or for upper connectionsand forks busbar system for the lower connections.1 3DX 3 -ID40A30mADX 3 6kAC10DX 3 6kAC10DNX 3C16I - On I - OnDX 3 6kAC10A1 A2041 67250V16AXDNX 3C16CONNECTING DX393

e a k i n g a n d p r o t e c t i o n d e v i c e sLexic DX 3 modularcircuit breakers (continued)Choice of protection devicesaccording to the neutral earthing systemAs a general rule all live conductors (phase and neutral) must be protected against overloads and short-circuits.It is however possible to do away with this requirement for the neutral conductor in certain configurations.Main permitted layouts according to the neutral earthing system and the type of circuitN N N N NNeutralearthingsystemChoice of protection devices according to the neutral earthing systemTTTN-STN-CITS N = S PH S N = S PH N not distributed S N = S PH S N < S PH S N = S PH S N < S PH S N = S PH S N < S PH(1)(1)Breaking of the neutralIf the neutral breaks (maximum imbalance), the neutral point moves according tothe load of each phase. The greater the load on a phase (phase 1 in this diagram),the lower its impedance. V 1 drops, V 2 and V 3 increase and may reach the value ofthe phase-to-phase voltage on the phases with the lowest loads, which generallysupply the most sensitive devices.(1)(1)(2) (2)(1) In TT and TN systems, it is possible to use circuit breakers with unprotected neutral pole if the cross-section of theneutral conductor is the same as that of the phase conductors. However, the neutral conductor must be protected if thereis a risk of it breaking upstream of the device and there is no residual current protection (TN system).(2) In IT systems with a distributed neutral conductor, it is possible to use circuit breakers with unprotected neutral pole ifa residual current protection device, with a sensitivity of less than 15% of the current permissible in the neutral, is placedupstream. This device must break all the poles, including the neutral. This situation should be limited to the supply ofdevices which can withstand the full voltage (between phases) with no risk of fire.0V3V2V194

Special applications and derating1 Use in an IT systemIn this case the breaking capacity of a single pole mustbe taken into account.DNX 3 4500Breaking capacity of one poleat 400 V according to EN 60947-22 High temperaturesA standard circuit breaker is set to operate at In at anambient temperature of 30°C.For Lexic circuit breakers the values in the followingtable are to be used.When several circuit breakers are installed side byside and operate simultaneously, the heat dissipationof one pole is limited. This leads to a rise in the operatingtemperature of the circuit breakers, causing falsetripping. It is advisable to apply additional coefficientsaccording to the operating currents:- 1 to 3 devices: 1- 4 to 6 devices: 0.8- 7 to 9 devices: 0.7- More than 10 devices: 0.6To avoid using the coefficients, good ventilationmust be provided and the devices keptaway from one another.1,5 kADX 3 4500 6kA Ph+N 1,5 kA3P/4P3 kADX 3 6000 10kA Ph+N 3 kA3P/4P3 kADX 3 10000 16kA Ph+N 3 kA1P/2P/3P/4P4 kADX 3 25kA 1P/2P/3P/4P 6,25 kADX 3 36kA 2P/3P/4P 9 kADX 3 50kA 1P/2P/3P/4P 12,5 kADerating (A) of DX 3according to the temperatureInambient temperature (°C)(A) -25 -10 0 10 20 30 40 50 60 700.5 0.64 0.6 0.57 0.55 0.52 0.5 0.47 0.45 0.42 0.400.8 1.02 0.96 0.92 0.88 0.84 0.8 0.76 0.72 0.69 0.661 1.25 1.17 1.1 1.07 1.03 1 0.97 0.93 0.90 0.872 2.5 2.34 2.21 2.14 2.06 2 1.94 1.86 1.80 1.743 3.75 3.5 3.36 3.24 3.12 3 2.88 2.76 2.64 2.524 5 4.7 4.44 4.28 4.12 4 3.88 3.72 3.6 3.486 7.5 7 6.6 6.4 6.18 6 5.8 5.6 5.4 5.28 10.2 9.6 9.2 8.8 8.4 8 7.6 7.2 6.9 6.610 12.2 11.5 11.1 10.7 10.3 10 9.7 9.3 9 8.713 16.3 15 14.3 13.9 13.4 13 12.6 12.1 11.7 11.316 19.7 18.7 18 17.3 16.6 16 15.4 14.7 14.1 13.520 24.6 23.2 22.4 21.6 20.8 20 19.2 18.4 17.6 16.825 31.2 29.5 28.3 27.2 26 25 24 22.7 21.7 20.732 40 37.8 36.5 34.9 33.3 32 30.7 29.1 27.8 26.540 50 48 46 44 42 40 38 36 34 3250 62.5 60 57.5 55 52.5 50 47.5 45 42.5 4063 78.1 75.6 72.5 69.9 66.1 63 59.8 56.1 52.9 50.480 102 96 92 88 84 80 76 72 69 66100 124 118 114 110 105 100 95 90 86 82125 155 147 141 137 131 125 119 113 108 1033 400 Hz power supplyThe stated characteristics for the devices assumea frequency of 50/60 Hz. They should be corrected foruse at 400 Hz.1‐module neutral + phase DX 3 80 A, 100 A and 125 Acircuit breakers have their magnetic thresholdincreased by 35%.This increase is 45% for 1, 2, 3 and 4-pole DX 3 circuitbreakers from 1 to 63 A.The other characteristics, such as the nominal ratingfor operation and the thermal thresholds,do not change. This is the case for all ratings.Special applications and derating95

e a k i n g a n d p r o t e c t i o n d e v i c e sLexic DX 3 modularcircuit breakers (continued)Special applications and derating4 DC operationDX 3 circuit breakers (1P/2P/3P/4P - In < 63 A) designedto be used with 230/400 V AC supplies, can also be usedwith DC supplies. In this case, the maximum value of themagnetic trip threshold must be multiplied by 1.4. Forexample: for a curve C circuit breaker whose trip thresholdis between 5 and 10 In with an AC supply, the tripthreshold will be between 7 and 14 In with a DC supply.The thermal tripping curve is the same as with an ACsupply.The maximum operating voltage is 80 V per pole(60 V for single-pole + neutral). For voltages abovethis value, several poles must be wired in series.The breaking capacity is 4000 A for a single-pole circuitbreaker at maximum voltage (80 V DC per pole)At other voltages, the breaking capacities are givenin the table below according to the number of polesin series.Breaking capacity Icu according to EN 60947-2++----Icu (kA)Ics (kA)24÷48 110 230 24÷48 110 230DX 3 6000 - 10kA 1P 6 - - 6 - -2P 6 6 - 6 6 -3P 6 - 6 -4P - - 10 - - 10DX 3 10000 - 16kA 1P 8 - - 8 - -2P 8 8 - 8 8 -3P - 8 - - 8 -4P - - 12 - - 12DX 3 25kA 1P 10 - - 10 - -2P 10 10 - 10 10 -3P - 10 - - 10 -4P - - 15 - - 15DX 3 36kA 1P 18 - - 18 - -2P 18 18 - 18 18 -3P - 18 - - 18 -4P - - 15 - - 15DX 3 50kA 1P 25 - - 25 - -2P 25 25 - 25 25 -3P - 25 - - 25 -4P - - 25 - - 25++5 Supplying power tofluorescent tubesThe rating for the protection device should be determinedon the basis of an actual rated current (I B )increased by the K cœfficient.K = 1.8 for compensated tubes (cos ϕ ≈ 0.85)K = 3.4 for non-compensated tubes (cos ϕ ≈ 0.5)With 230 V three-phase distribution:I B = I BP = x P K x K230 230With 400 V three-phase distribution:I B = I B =P P x K x K400 400 x 3 x 3P: Sum of powers (in W) of fluorescent fittings dependingon models (18 W, 36 W, 58 W, 2 × 36 W, 2 × 58 W,2 × 80 W, 4 × 18 W, III B = Q 1000 Betc). B == Q x P 1000 x Kx K230x KU x U 3 x 36 Protection of capacitor banksI B = P x KThe rating for the protection 400 x device 3 should be determinedon the basis of an actual rated current (I B )increased by the K cœfficient.I B = Q x 1000 x KU x 3K = 2 for Q ≤ 25 kVARK = 1.8 for Q ≤ 50 kVARK = 1.7 for Q ≤ 100 kVARK = 1.5 for Q > 100 kVARQ: Capacitor bank reactive power (in kVAR)U: Nominal voltage of 3-phase supply96

Performance dataCurve BCurve C1000010000t (s)1000t (s)10001001001010110.10.10.010.011 2 3 4 5 10 20 30 50 100 200I/Ir1 2 3 4 5 10 20 30 50 100 200I/IrCurve D10000t (s)100010010Magnetic thresholds accordingto the type of curve10.10.011 2 3 4 5 10 20 30 50 100 200I/IrCurveMagnetic thresholdZ (1)BC2.4 to 3.6 In3 to 5 In5 to 10 InD 10 to 14 In (2)(1) Please consult us(2) 10 to 20 according to the standardsPerformance data97

e a k i n g a n d p r o t e c t i o n d e v i c e sLexic DX 3 modularcircuit breakers (continued)Thermal stress limitation curves1 DX 3 - curve B2P (230 V - 50 Hz)2P (400 V - 50 Hz)1P (230 V) - 3P/4P (400 V)10 710 710 7I 2 t (A 2 s)I 2 t (A 2 s)I 2 t (A 2 s)10 6635040324,5kA6kA10 6635040324,5kA6kA10 6635040324,5kA6kA25252510 52010kA10 52010kA10 52010kA16161610101010 410 410 410 350kA10 350kA10 350kA16kA16kA16kA10 225kA10 225kA10 225kA1010 10 210 3 10 4 Icc (A) 10 51010 10 210 3 10 4 Icc (A) 10 51010 10 210 3 10 4 Icc (A) 10 52 DX 3 - curve C2P (230 V - 50 Hz)2P (400 V - 50 Hz)1P (230 V) - 3P/4P (400 V)10 710 710 7Thermal stress limitation curvesI 2 t (A 2 s)10 610 510 410 310 2101620254032635016kA4,5kA1010 10 210 3 10 4 Icc (A) 10 56kA25kA10kA50kAI 2 t (A 2 s)10 62010 5161010 410 363504,5kA40326kA2510kA50kA16kA25kA10 21010 10 210 3 10 4 Icc (A) 10 5I 2 t (A 2 s)10 610 516634,5kA5040326kA252010kA1010 450kA10 316kA25kA10 21010 10 210 3 10 4 Icc (A) 10 598

3 DX 3 - curve D2P (230 V - 50 Hz)2P (400 V - 50 Hz)1P (230 V) - 3P/4P (400 V)10 710 710 7I 2 t (A 2 s)10 66350403225204,5kA6kAI 2 t (A 2 s)10 66350403225204,5kA6kA10kAI 2 t (A 2 s)10 66350403225206kA10kA10 51610kA10 51610 516101010 410 410 410 350kA10 310 310 210 21010 10 210 3 10 4 Icc (A) 10 51010 10 210 3 10 4 Icc (A) 10 51P (230 V) - 3P/4P (400 V)10 7I 2 t (A 2 s)16kA25kA10 21010 10 210 3 10 4 Icc (A) 10 52P (230 V - 50 Hz)10 7I 2 t (A 2 s)1050kA16kA25kA4 DX 3 - magnetic only2P (400 V - 50 Hz)10 7I 2 t (A 2 s)10 610 510 410 310 21010 10 210 3 10 4 Icc (A) 10 510 610 510 410 310 21010 10 210 3 10 4 Icc (A) 10 510 610 510 410 310 21010 10 210 3 10 4 Icc (A) 10 5Thermal stress limitation curves99

e a k i n g a n d p r o t e c t i o n d e v i c e sLexic DX 3 modularcircuit breakers (continued)5 DX 3 - curve C - In: 80-100-125 A2P (230 V - 50 Hz)2P (400 V - 50 Hz)1P (230 V) - 3P/4P (400 V)10 7I 2 t (A 2 s)1251008010 7I 2 t (A 2 s)1251008010 7I 2 t (A 2 s)1251008010 610 610 616kA16kA16kA10 510 525kA10 525kA50kA10 410 410 410 310 310 310 210 210 21010 10 210 3 10 4 Icc (A) 10 51010 10 210 3 10 4 Icc (A) 10 51010 10 210 3 10 4 Icc (A) 10 56 DX 3 - curve D - In < 63 A2P (230 V - 50 Hz)2P (400 V - 50 Hz)1P (230 V) - 3P/4P (400 V)10 710 710 7I 2 t (A 2 s)80100125I 2 t (A 2 s)80125100I 2 t (A 2 s)80100125Thermal stress limitation curves10 616kA10 550kA10 410 310 21010 10 210 3 10 4 Icc (A) 10 510 616kA10 525kA10 410 310 21010 10 210 3 10 4 Icc (A) 10 510 616kA10 525kA10 410 310 21010 10 210 3 10 4 Icc (A) 10 5100

7 DX 3 36 kA - curve c - In: 80-100-125 A2P (230 V - 50 Hz)2P (400 V - 50 Hz)1P (230 V) - 3P/4P (400 V)10 710 710 7I 2 t (A 2 s)I 2 t (A 2 s)I 2 t (A 2 s)10 610 610 610 536kA10 536kA10 536kA10 410 410 410 310 310 310 210 210 21010 10 210 3 10 4 Icc (A) 10 51010 10 210 3 10 4 Icc (A) 10 51010 10 210 3 10 4 Icc (A) 10 58 limitation curvesIn < 63AIn = 80-100-125A200IP (kA)200IP (kA)1005040302010543210,90,85 0,75 0,650,451 2 3 4 5 10 20 30 40 50 100Icc (kA)0,2563A50A40A32A25A20A16A10A1005040302010543210,90,85 0,75 0,650,451 2 3 4 5 10 20 30 40 50 100Icc (kA)0,2580A100-125AThermal stress limitation curves101

e a k i n g a n d p r o t e c t i o n d e v i c e sDX-E modularcircuit breakers The simplicity of the DX-E makes it the naturalchoice for the least complex commercial andresidential installations, where there is littlerequirement for adaptability.The DX-E range of modular circuit breakers is suitablefor most requirements in standard installations:- 1P, 2P, 3P, 4P- Curve B and C- Ratings from 6 to 63 A- Breaking capacity: 6 000 (IEC 60898-1) - 6 kA(IEC 60947-2).They take auxiliaries from the DX range, apart fromadaptable earth leakage modules.They are mounted on a DIN rail (a single clip) and havea label holder for identification of the circuits.1 module per pole for the whole DX-E rangeCharacteristics of DX-E circuit breakersSingle pole 2-pole 3-pole 4-poleNumber of poles 1P 2P 3P 4PDX-E modular circuit breakersRated current (A) at 30°CRatings6 - 10 - 13 - 1620 - 25 - 3240 - 50 - 636 - 10 - 13 - 1620 - 25 - 3240 - 50 - 636 - 10 - 13 - 1620 - 25 - 3240 - 50 - 636 - 10 - 13 - 1620 - 25 - 3240 - 50 - 63Types of curve B and C B and C B and C B and CNominal voltage Un (V)with standard tolerances230/400 V 400 V 400 V 400 VNominal frequency 50/60 Hz 50/60 Hz 50/60 Hz 50/60 HzMaximum operating voltage (50/60Hz) + or – 10% 240/415 V 415 V 415 V 415 VBreaking capacity Icn (kA)acc. to IEC 60898Breaking capacityIcu (kA) acc. to IEC 60947-2Standard breakingcapacity Ics (% Icu)127 V/230 V AC 10 kA/6 kA 15 kA/10 kA 10 kA/10 kA 10 kA/10 kA400 V AC - 6 kA 6 kA 6 kA127 V/230 V AC 10 kA/6 kA 15 kA/10 kA 10 kA/10 kA 10 kA/10 kA400 V AC - 6 kA 6 kA 6 kA127 V/230 V AC 100% 100% 100% 100%400 V AC - 100% 100% 100%Rated insulation voltage Ui (V) 500 V 500 V 500 V 500 VRated impulse withstand voltage (kV)Degree of pollution 2Endurance (mechanicaland electricaloperating cycles)4 4 4 4No-load 20 000 20 000 20 000 20 000With load 10 000 10 000 10 000 10 000DC 2000 2000 2000 2000Dielectric strength 2500 V 2500 V 2500 V 2500 VOperating temperature -25°C to +70°C -25°C to +70°C -25°C to +70°C -25°C to +70°C102

Curve B10000t (s)Performance data10 09876543Ip (kA)2Current limitation curves0. 1510001001010 09876543220.450.250.2010.110 0 10 0987654320.90. 85 0.7550.640, 50, 63 A20, 25, 32 A10, 16 A6 ADX-E B and C curves10.0110 0 2 3 4 5 6 7 8 9 10 1 23 4 5 6 7 8 9 10 2Icc (kA)1 2 3 4 5 10 20 30 50 100 200I/IrMarking and dimensionsCurve C10000t (s)1000LegrandCat. No.VoltageCurve/rated currentBreaking capacityIEC 60898Electricaldiagram1001010.10.011 2 3 4 5 10 20 30 50 100 200I/IrX836,3446070451P 2P 3P 4PX (mm) 17.7 35.6 53.4 71.2DX-E modular circuit breakers103

e a k i n g a n d p r o t e c t i o n d e v i c e sRX 3 modularcircuit breakersThe characteristics of RX 3 modular circuitbreakers make them suitable for use inresidential installations. The range includesratings from 6 A to 63 A, with two trippingcurves: C (for the entire range) and B (for singlepole, 2-pole and 3-pole models only).The RX 3 range provides minimum functional characteristicsfor residential installations:- B and C curves- Ratings: 3 to 63 A- 1P, 1P+N, 2P, 3P, 3P+N and 4P- Breaking capacities (IEC 60898‐1):- 10 000 A on 127/220 V AC- 6 000 A on 230/400 V ACRX 3 circuit breakers cannot take any accessories, suchas control auxiliaries or motor-driven controls.By design, RX 3 circuit breakers cannot be usedin coordination or in combination with othercircuit breakers1 module perpole for thewhole RX 3 rangeNumber of poles 1P 1P+N 2P 3P 3P+N 4PRated current (A) at 30°CRatings6 - 10 - 13 - 1620 - 25 - 3240 - 50 - 636 - 10 - 13 - 1620 - 25 - 326 - 10 - 13 - 1620 - 25 - 3240 - 50 - 636 - 10 - 13 - 1620 - 25 - 3240 - 50 - 636 - 10 - 13 - 1620 - 25 - 3240 - 50 - 63Types of curve B and C C B and C B and C C CNominal voltage Un (V)with standard tolerancesCharacteristics of RX 3 circuit breakers230/400 V 230 V 400 V 400 V 400 V 400 V6 - 10 - 1620 - 25 - 3240 - 50 - 63Nominal frequency 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 50/60 HzMaximum operating voltage (50/60Hz) + or – 10% 240/415 V 240 V 415 V 415 V 415 V 415 VRX 3 modular circuit breakersBreaking capacity Icn (kA)acc. to IEC 60898Breaking capacityIcu (kA) acc. to IEC 60947-2Standard breakingcapacity Ics (% Icu)127 V/230 V AC 10 kA/6 kA 10 kA/6 kA 15 kA/10 kA 10 kA/10 kA 10 kA/10 kA 10 kA/10 kA400 V AC 6 kA 6 kA 6 kA 6 kA127 V/230 V AC 10 kA/6 kA 10 kA/6 kA 15 kA/10 kA 10 kA/10 kA 10 kA/10 kA 10 kA/10 kA400 V AC 6 kA 6 kA 6 kA 6 kA127 V/230 V AC 75% 75% 75% 75% 75% 75%400 V AC 75% 75% 75% 75%Rated insulation voltage Ui (V) 500 V 500 V 500 V 500 V 500 V 500 VRated impulse withstand voltage (kV) Degree ofpollution 2Endurance (mechanicaland electricaloperating cycles)4 4 4 4 4 4No-load 20 000 20 000 20 000 20 000 20 000 20 000With load 10 000 10 000 10 000 10 000 10 000 10 000DC 2000 2000 2000 2000 2000 2000Dielectric strength 2500 V 2500 V 2500 V 2500 V 2500 V 2500 VOperating temperature -25°C to +70°C -25°C to +70°C -25°C to +70°C -25°C to +70°C -25°C to +70°C -25°C to +70°C104

Performance dataCurrent limitation curvesCurve BIp (kA)10000t (s)1000101001054340, 50, 63 A20, 25, 32 A10, 13, 16 A6 A10.111 2 3 4 5 10 20 30 50 100Icc (kA)0.01Marking1 2 3 4 5 10 20 30 50 100 200I/IrCurve C10000t (s)100010010Curve/ratedcurrentBreakingcapacityIEC 60898On RX 3C16Off 450034021 55LegrandCat. No.10.10.011 2 3 4 5 10 20 30 50 100 200I/IrRX 3 modular circuit breakers105

e a k i n g a n d p r o t e c t i o n d e v i c e sLegrand isolatingswitchesLegrand isolating switches are used for loadbreaking and isolation of LV circuits. Designed toseparate an installation or part of an installationelectrically, the purpose of isolation is to ensurethe safety of people working on the installation.There are 3 categories of device, depending ontheir characteristics and where they are to be used:- Isolating switches with positive contact operation- Isolating switches with visible contact indication- Trip-free isolating switchesIsolation does not on its own ensure thatthe installation is made safe.Appropriate methods must be used to lock outthe installation in order to prevent any unwantedre-energisation (see book 09: “Operatingfunctions”).isolating switches with positive contact indicationisolating switches with positive contact indication106Positive contact indication is checked by reliablelinking between the position of the contacts and thatof the control switch handle. The indication “I” or “O”(red or green) on the handle thus confirms the actualposition of the contacts.Compliance with standard IEC 60947 is evidenceof this.DX-IS modular isolating switches with positivecontact operation are available in 1P, 2P, 3P and 4Pversions, up to 125 A.DX-IS with trip option (2P and 4P, 40 to 125 A) canbe used with a current shunt trip or an undervoltagerelease. All models can take auxiliary contactsCat. Nos. 073 50/54, which are the same as for circuitbreakers.^ DX‐IS isolating switches:1 module per pole up to 125 A^ DX-IS with trip option(red handle) and current shunttrip Cat. No. 073 61Ith 16 - 32 A 40 - 63 A 100 - 125 ACapacity ofcage terminalsInsulationvoltage (Ui)Impulse withstandvoltage (Uimp)flexible 1.5 to 16 mm 2 1.5 to 25 mm 2 6 to 35 mm 2rigid 1.5 to 16 mm 2 1.5 to 35 mm 2 4 to 50 mm 2250400 V AC250400 V AC4 kV 4 kV 4 kV250400 V ACUtilization category AC 22 A AC 22 A AC 22 AShort-timewithstand current (Icw)Short-circuit makingcapacity (Icm)Mechanical endurance(No. of operations)Characteristics of DX-ISAC 23 A AC 23 A AC 23 A750 A 1700 A 2500 A1500 A 3000 A 3700 A> 30 000 > 30 000 > 30 000Protection index IP 2x wired IP 2x wired IP 2x(25 mm 2 )Isolating switches are tested in accordancewith standard IEC 60947-3:- AC 22 A/DC 22 A = combined motor-resistorbreaking- AC 23 A/DC 23 A = motor breaking(inductive loads)- AC = alternating current/DC = direct current- A = use with frequent operations

Isolating switches with visible contact indicationThe actual position of the contacts can be checkedvia a display window. Visible contact indication isrequired by the energy distribution company forsubscriber stations with certain tariffs with LVmetering (single transformer, power < 1250 kVA.1 Vistop 63 to 160 AVistop devices are available with 3 or 4 poles. Theyare mounted on a 3 rail under a modular faceplatein all XL 3 enclosures. Vistop > 100 A can also beattached using screws. They are available with rightor left side-mounted handles (mounted externally onthe side of the enclosure) or front handles (that canbe mounted externally on the door using accessoryCat. No. 227 32).The handle can be black, or red/yellow for emergencycontrol. It can be padlocked in “open” position. Theintegrated cage terminals take rigid or flexible conductors.They can also take distribution terminals Cat.No. 048 67 (six 35 mm 2 rigid or 25 mm 2 flexible outputs)or 12 mm wide copper bars.< Vistop withexternal sidemountedhandlefor emergencyoperationsVistop electrical characteristicsThermal rating (Ith) 63 A 100 A 125 A 160 A 16 A (2)Connection Cu (flexible) 4 to 35 mm 2 4 to 50 mm 2 6 mm 2Cu (rigid) 4 to 50 mm 2 4 to 70 mm 2 6 mm 2Insulation voltage (Ui) 690 V AC 800 V AC 800 V AC 800 V AC 400 V ACImpulse withstand voltage (Uimp) 8 kV 8 kV 8 kV 8 kV -AC 22 A 400 V 63 A (35 kW) 100 A (55 kW) 125 A (70 kW) 160 A (88 kW) 16 A500 V 63 A (44 kW) 100 A (69 kW) 125 A (87 kW) 160 A (110 kW) -AC 23 A 690 V 40 A (38 kW) 100 A (96 kW) 125 A (120 kW) 125 A (120 kW) -DC 22 A/250 V (1) 63 100 125 125 16DC 23 A/250 V (1) 63 100 125 125 10Dynamic resistance (k peak) 15 15 15 15 2Short-time withstand current kA (Icw) 2.5 3.5 3.5 3.5 1Permissible Isc with fuses (kA rms) 100 100 100 80 100Max. fuse rating 63 A 100 A (gG)63 A (aM)Short-circuit making capacity(prospective k peak) (Icm)(1) Number of poles involved in the breaking operation: 2(2) Auxiliary isolating switch125 A (gG)125 A (aM)160 A (gG)125 A (aM)7 12 12 12 1Mechanical endurance (No. of operations) > 30 000 > 30 000 > 30 000 > 30 000 > 30 000Protection index IP 2xB (> 6 mm 2 )IP 3xC under faceplatesIP 2xB (> 10 mm 2 ) - IP 3xC under faceplates-Isolating switches with visible contact indication107

B r e a k i n g a n d p r o t e c t i o n d e v i c e sLegrand isolatingswitches (continued)Front handleDirectC283C16345Dimensions of VistopC786external9874602244mini 114 - maxi 5232 DPX-IS 63 to 1600 ADPX-IS isolating switches provide visible contact indicationfrom 63 to 1600 A, with 3 poles and 4 poles.They are fixed on special plates or on a 3 rail (undera modular faceplate with window) up to 250 A.They are available with a front, or right or left side-mounted handle, which can be remotely mountedon the outside of the enclosure. The operating handlecan be padlocked in “open” position.The standard handle (black) can be replaced by ahandle for emergency operation (red/yellow).Lateral handleC1 83222,5 242244 660C283666345C1 C1 C1C1650DPX-IS 250Isolating switches with visible contact indicationFront handleExternallateral handle63 A 100 à 160 A 63 A 100 à 160 A3P et 4P 3P 4P 3P et 4P 3P 4PC 125 133 160 125 133 160C 1 17,7 26,7 17,7 26,7C 2 90 91 90 91Auxiliary isolating switch Cat. No. 227 22,which fits onto Vistop 100 to 160 A, enables simultaneousbreaking of an associated 16 A max. 2-pole circuitDPX-IS 630DPX-IS 1600108

Electrical characteristics of DPX‐ISDPX-IS 250 DPX-IS 630 DPX-IS 1600ConnectionCurrent 63 A 100 A 160 A 250 A 400 A 630 A 800 A 1000 A 1250 A 1600 ACu (flexible) 150 mm 2 1 x 240 or 2 x 185 mm 2 2 x 185 mm 2 or 4 x 185 mm 2Cu (rigid)/Alumin.The versions with trip can be fitted withthe same control auxiliaries as DPX circuitbreakers.185 mm 2 1 x 300 or 2 x 240 mm 2 2 x 240 mm 2 or 4 x 240 mm 2Copper bar or lug Max. width 28 mm Max. width 32 mm Max. width 50 mm or 80 mmNominal voltage (Ue) 690 V AC 690 V AC 690 V ACInsulation voltage (Ui) 800 V AC 800 V AC 690 V ACImpulse withstand voltage(Uimp)AC 23 A8 kVA 8 kVA 8 kVA400 V AC 63 A 100 A 160 A 250 A 400 A 630 A 800 A 1000 A 1250 A 1600 A500 V AC 400 A 630 A 800 A 1000 A 1250 A 1600 A690 V AC 63 A 100 A 160 A 160 A 400 A 400 A 800 A 1000 A 1250 A 1600 AAC 22 A 690 V AC 63 A 100 A 160 A 250 A 400 ADC 23 A 250 V DC 800 A 1000 A 1250 A 1600 AShort-time withstandcurrent (Icw)Permissible current with fuse(Isc)12 kA rms 20 kA rms 20 kA rms100 kA rms 100 kA rms 100 kA rmsMax. rating, gG fuse 63 A 100 A 160 A 250 A 400 A 630 A 800 A 1000 A 1250 A 1600 AMax. rating, aM fuse 63 A 100 A 160 A 160 A 400 A 630 A 800 A 1000 A 1250 A 1600 AShort-circuit making capacity(Icm) (prospective k peak)Endurance40 kA 40 kA 40 kAmechanical 25 000 operations 15 000 operations 10 000 operationselectrical(AC 23 400 V)2500 operations 1500 operations 3000 operations 2000 operationsProtection index IP 20 on front panel IP 20 on front panel IP 20 on front panel Isolating switches with visible contact indication109

B r e a k i n g a n d p r o t e c t i o n d e v i c e sLegrand isolatingswitches (continued)Dimensions of DPX-IS 250Front handleMounted on rail 3 Isolating switches with visible contact indication17,5 35 35 35138771324528maxi35 35 3590°160195Right lateral handle4290°1627477Left lateral handle2271953535353510 maxi18810 maxiM4181-674Ø 18 maxi4511,540,42278 19535 35 35M41381073517,5 35 35 3510713835 17,5877M474162M490°8774542451327450 mini300 maxi11,5321,5421383572,5 1057035195With terminal shields1057035140195454272,5 85,555138 607411,540,540,511,574 8,517576,5424512925827110

Dimensions of DPX-IS 630Front handleWith terminal shields32 max.48,1 43,5 43,590˚1728105638,2130,58743,5108,220013815 max.642200 65,34294165,3330,6Ø 25 max.26,443,5 43,5 43,5M528111138,7Right lateral handle183,2 81,8 10526511649327,526590˚17M52651324843,5 43,542181327,5265105Left lateral handle43,5 43,5 482001601389443,5 43,5 43,5 26942613816020017M543,5 43,5 43,510518190˚42132Isolating switches with visible contact indication111

B r e a k i n g a n d p r o t e c t i o n d e v i c e sLegrand isolating205switches (continued)100140149191,3207Dimensions of DPX-IS 16003P105105210Vari-depth handleIP 401481308574 6027832050941488543 132 14074 60278320409,5 max194 min0,8/1,53235 35130190Without handle extensionWith handle extension7035 35190205100205100Vari-depth handleIP 55140149191,3207140149191,3238,743 132 140379 max162 min0,8/1,562,51051052101051052101488574 60278320Isolating switches with visible contact indication1481304P8570 35 35190Without handle extension175280205100105140149191,320774 602783205094With handle extension205100140149191,3238,713070509435 35190112

Trip-free isolating switchesDMX 3 ‐I and DPX‐I switches have the same mountingmethods and the same locking and connection optionsas DMX 3 and DPX circuit breakers. (see p. 54 and 12).The motor-driven controls and electrical auxiliariesare also the same as those for the circuit breakers.Circuit opening, closing and monitoring can thereforebe carried out remotely.Electrical characteristics of DMX 3 -IDMX 3 -I 2 500 DMX 3 -I 4 0001 250 A 1 600 A 2 000 A 2 500 A 3 200 A 4 000 ANumber of poles 3P - 4P 3P - 4P 3P - 4P 3P - 4P 3P - 4P 3P - 4PRating In (A) 1250 1600 2000 2500 3200 4000Rated insulation voltage Ui (V) 1000 1000 1000 1000 1000 1000Rated impulse withstand voltage Uimp (kV) 12 12 12 12 12 12Rated operational voltage (50/60 Hz) (kV) 690 690 690 690 690 690230 V AC 105 105 105 105 105 105415 V AC 105 105 105 105 105 105Short-circuit making capacity Icm500 V AC 105 105 105 105 105 105(kA)600 V AC 88 88 88 88 88 88690 V AC 63 63 63 63 63 63230 V AC 50 50 50 50 50 50415 V AC 50 50 50 50 50 50Short time withstand current Icw500 V AC 50 50 50 50 50 50(kA) for t = 1s600 V AC 42 42 42 42 42 42690 V AC 36 36 36 36 36 36Endurance (cycles)mechanical 10 000 10 000 10 000 10 000 10 000 10 000electrical 5000 5000 5000 5000 5000 5000Electrical characteristics of DPX-IDPX-I 125 DPX-I 160 DPX‐I 250 ER DPX-I 250 DPX-I 630 DPX-I 1 600Operating voltage (Ue)50/60 Hz 500 500 500 690 690 690DC 250 250 250 250 250 250Insulation voltage Ui (V AC) 500 500 500 690 690 690Rated impulse withstand voltage Uimp (kV) 6 6 6 8 8 8Short-circuit making capacity at 400 VIcm (kA)3 3.6 4.3 4.3 40 40Short-time withstand current Icw 1 s (kA) 1.7 2.1 3 3 20 20Endurance (cycles)mechanical 8500 7000 7000 7000 4000 2500electrical 1500 1000 1000 1000 1000 500Conventional thermal current (A) 125 160 250 250 630 1600Rated operatingAC 23 A (690 V AC) 125 (500 V) 160 (500 V) 250 (500 V) 250 630 1600current (A)DC 23 A (250 V DC) 125 160 250 250 630 -Trip-free isolating switches113

B r e a k i n g a n d p r o t e c t i o n d e v i c e sFusesFuses were the first type of protection to beused, and they still have a place in numerousapplications. Although they do not havethe flexibility of adjustment and resettingcapacity of a circuit breaker, they arenevertheless reliable, high performancedevices in terms of their ability to break veryhigh short-circuit currents.fuse technologyThe fuse cartridge is inserted in the circuit to be protected.If there is an overcurrent, the circuit is brokenautomatically by fusing of the conductive fuse element,which is specially rated, inside the cartridge. The silicain the body of the cartridge absorbs very high energiesby fusing and vitrification. Unlike a circuit breaker, thefuse cartridge is destroyed by the fault and must bereplaced.Fuse cartridges comply with standard IEC 60269-1.Conductiveend pieceInternal structure of a fuse cartridgeStriker or indicatorindicating fusingCartridgeCylindricalBlade typeStandard fuse cartridgesSizeStandard ratingrange8 x 32 1 - 16 A10 x 38 0.5 - 25 A14 x 51 2 - 50 A22 x 58 4 - 125 A00 25 - 160 A0 63 - 200 A1 125 - 250 A2 200 - 400 A3 500 - 630 A4 630 - 1250 AInteriorfilled with silicaConductiveend pieceFuse elementsolderPorcelain insulatingbodyFuse elementWire holding theindicator or striker^ SPX-D isolating switch for bladetype cartridgesfuse technology114They come in various shapes and sizes. In low voltageelectrical installations cylindrical cartridges and bladetype cartridges are mainly used, with ratings rangingfrom 0.5 A to 1250 A.Fuse cartridges are fitted in isolating switches, fusecarriers or simply on bases.< SP fuse carrierfor cylindricalcartridgesBase for >blade typefuses

Fuses with indicators and striker fusesFuse cartridges with indicator or striker make it possibleto identify the cartridges to be replaced.• Fuses with indicator: a disk on the end of the cartridgeindicates the state of the fuse.• Striker fuses: when fusing occurs, a striker activates amicroswitch in the fuse carrier, and the state of the fuseis shown on an indicator light.The operating principle is more or less the same for bothsystems.The spring of the indicator or striker is held in the “set”position by a wire made of low conductivity material.When a fault triggers fusing of the cartridge, there isa recovery voltage between the two ends of the wire. Itthen melts and the indicator or striker, which is thereforereleased, is pushed in by the action of the spring.CurrentVoltageTransient recoveryvoltageMoment of breakVoltagerecoveredFuses in the standardsGeneral rules Uses Types of cartridge➧Specific applicationsIEC 60269-4➧Systems for protecting semiconductors (may be above1000 V AC and 1500 V DC)IEC 60269-4-1IEC 60269-1➧Household applicationsIEC 60269-3Systems for unqualified people➧IEC 60269-3-1Neozed/Diazed, NF, BS 1361, type C, pin-type fuses, etc.➧Industrial applicationsIEC 60269-2Systems for qualified people➧IEC 60269-2NH system, BS 88, 10 x 38, 14 x 51, 22 x 58, etc.fuse technology115

B r e a k i n g a n d p r o t e c t i o n d e v i c e sFuses (continued)fuse Characteristics1 Types of fuseFuses are identified by 2 letters, according to theirapplication category. In low voltage installations gGand aM fuses are mainly used.• gG cartridges (general use) protect the circuitsagainst low and high overloads and, of course, againstshort circuits.gG cartridges are marked in black.• aM cartridges (for use with motors) protect againsthigh overloads and short circuits. They are calculatedto resist certain temporary overloads (startinga motor). These cartridges must therefore be usedtogether with a thermal protection device to protectagainst low overloads.aM cartridges are marked in green.2 Rated currents and voltagesThe rated current can cross a fuse indefinitely, withouttriggering either fusing or any excessive temperaturerise. The rated voltage is the voltage at which this fusecan be used.Fuse markingsType of fuseRated currentRated voltageMeanings of the letters used for the application categoriesThe first letter indicates the main operation:a = associatedThe fuse must be associated with another protection device, because it cannot break faults below a specified level.It provides short-circuit protection only.g = generalIt breaks all faults between the lowest fusing current (even if it takes 1 hour to melt the fuse elements) and thebreaking capacity. It provides short-circuit and overload protection.fuse CharacteristicsThe second letter indicates the category of equipment to be protected:G = Protection of cables and conductorsM = Protection of motor circuitsR = Protection of semiconductorsS = Protection of semiconductorsTr = Protection of transformersN = Protection of conductors according to North American standardsD = Time-delay fuse for protecting motor circuits according to North American standards116

3 Conventional non-fusingand fusing currentsConventional non-fusing current (Inf)This is the current value that the fuse cartridge canwithstand for a conventional time without melting.Conventional fusing current (If)This is the current value that causes the fuse cartridgeto fuse before the conventional time has elapsed.4 Operating zoneThe operating zone defined by the standards is used todetermine the operating time of the fuse according tothe current crossing it. It is important to know the operatingcharacteristics of the fuse in order to calculatethe discrimination of the various protective devicesinstalled in series.Ratings (A)InfNon-fusingcurrentIfFusingcurrenttConventionaltimeIn < 4 1.5 In 2.1 In 1 h4 < In < 10 1.5 In 1.9 In 1 h10 < In < 25 1.4 In 1.75 In 1 h25 < In < 63 1.3 In 1.6 In 1 h63 < In < 100 1.3 In 1.6 In 2 h100 < In < 160 1.2 In 1.6 In 2 h160 < In < 400 1.2 In 1.6 In 3 h400 < In 1.2 In 1.6 In 4 hFusingtimet (s)40300 AI eff. (A)For a 100 A 22 x 58 gG cartridge, an overload of 300 Awill melt the cartridge in 40 sFault currentFusingtime2 h1 h1.31.6In the above example (100 A gG cartridge):Conventional time = 2 hInf = 1.3If = 1.6 InFault current x.In(A)5 Breaking capacityThe breaking capacity must be at least equal to theprospective short-circuit current that may occur atthe point at which the fuse is installed. The higherthe breaking capacity, the more capable the fuse ofprotecting the installation against high intensity shortcircuits. HBC (High Breaking Capacity) fuses limitshort circuits that could reach more than 100 000 Arms.fuse Characteristics117

B r e a k i n g a n d p r o t e c t i o n d e v i c e sFuses (continued)6 Limitation curveThe limitation of the current can vary according tothe conditions of the short circuit (intensity, cos ϕ,short-circuit starting angle ψ). The limitation curvesof Legrand cartridges represent the maximum limitedcurrent values that can be achieved under the mostunfavourable conditions.ExampleFor a prospective short circuit of 10 000 A rms (or10 kA rms) in view of the maximum asymmetry of thecurrent, the short circuit could reach a theoreticalmaximum value of 2.5 x I rms, i.e. 25 kA peak.Importance of the limitation capacityA short circuit is dangerous, both in terms of itselectrodynamic effects and its thermal effects:- The destructive electrodynamic effectsdepend on the square of the peak current reachedduring the short circuit, and cause mechanical damageto the insulation of the conductors.- The destructive thermal effects depend on thethermal energy dissipated during the short circuit,and could burn the insulation of the conductors.Fuse cartridges limit both these effects as muchas possible.Limited currentPeak I(A)25 0008 0002.5 I eff.limitation curveProspectiveshort-circuitcurrent7 Limited thermal stressA short circuit triggers the release of a considerableamount of energy. The fuse cartridge limits this energyto a much lower value, conventionally known as thelimited thermal stress, expressed in A 2 s.Why must the thermal stress be limited?fuse Characteristics10 000I eff. (A)The 100 A gG cylindrical fuse cartridge limits the firstcurrent wave to 8 000 A peak, i.e. approximately 30% ofthe prospective maximum value. The destructive electrodynamiceffects are therefore reduced by a factor of10 ( (8 000/25 000) 2 ) of the maximum value.The higher the prospective short-circuit current, thehigher the limitation ratio.For example for a 100 000 A rms short circuit, i.e.250 000 A peak, the 100 A gG cartridge limits thiscurrent to 15 000 A peak, i.e. limitation to 6% of theprospective maximum current and limitation to 0.36%of the prospective maximum electrodynamic effects.If the energy released by the short circuit is not limited,it can quickly lead to total or partial destruction of theinstallation.Thermal stress is governed by two main parameters:- Cos ϕ: the lower this is, the greater the energy- Voltage: the higher the voltage, the greater theenergyFuse cartridges significantly limit this energy. Forexample, for a 10 kA rms asymmetrical short circuitat 230 V, cos ϕ = 0.1, would develop if there were nocartridge, on several current waves. For the first waveonly, the thermal stress could reach 4 000 000 A 2 s.Under the same fault conditions, a 100 A gG Legrandcartridge would limit the thermal stress to 78 000 A 2 s,i.e. 1.95% of the value on the first wave of theprospective current only.118

Difference between pre-arcingand arcing thermal stressesA fuse breaks a short circuit in two stages:pre-arcing, then arcing.• The pre-arcing thermal stress corresponds to theminimum energy necessary for the fuse element of thecartridge to start melting. It is important to know thisthermal stress in order to determine the selectivityon a short circuit between several protection systemsin series.• The arcing thermal stress corresponds to theenergy limited between the end of pre-arcing andtotal breaking.8 selectivityA current generally crosses a number of protectiondevices in series. These devices are calculated and distributed according to the various circuits to be protected.There is selectivity when only the device protectingthe faulty circuit operates.I FaultExamplePeak IF1400 AI FaultF2F3100 AI Fault25 At(s)pre-arcingtimearcing timeThe sum of the arcing and pre-arcing thermal stressesgives the total thermal stress.FaultOnly the 25 A cartridge has operated on a faultoccurring on the line it is protecting.If the 100 A cartridge, or even the 400 A cartridge,had also operated (incorrect selectivity), the wholeinstallation would have gone down.arc 220 Vcos ϕ = 0,1arc 500 Vcos ϕ = 0,1pre-arcingfuse Characteristics119

400 VB r e a k i n g a n d p r o t e c t i o n d e v i c e sFuses (continued)Cylindrical cartridge fuses gG and aM typesn Rupture capacity curvesgG typeaM typeTime in s10 0001246 810 1216 2025 3240 5063 80100 125Time in s10 0001 0001 0001001000.250.5128 1012 1620 2532 4050 6380 100125461010110.10.10.011 10 100 1 000 10 000 100 000Current in An Thermal stress (∫ i2 dt)gG type (for 500 V AC)1 000 0000.010.1 1 10 100 1 000 100 000Current in AaM type (for 500 V AC except 1250 A for 400 V AC)1 000 000100 000100 00010 00010 000Thermal stress in A 2 s1 000100101001 2 4 6 8 10 12 16 20 25 32 40 50 63 80 100 125Rating in An Limitation curvesgG typeThermal stress in A 2 s1 000100101 1 2 4 6 8 10 12 16 20 25 32 40 50 63 80 100125Rating in AaM type100fuse CharacteristicsLimited currents at peak kA3010310.32.5 Ieff0.10.1 0.2 0.5 1 2 5 10 20 50 100Prospective short-circuit at kA rms12108641251008063504032252016Limited currents at peak kA12530100806350104032252016312108164210.30.50.10.1 0.2 0.5 1 2 5 10 20 50 100Prospective short-circuit at kA rms2.5 Ieff120

Blade cartridge fuses gG and aM typesn Rupture capacity curvesgG typeTimes in s10 000253235405063801001251602002503154005006308001 0001 250aM typeTime in s10 0001 0001 00010010025324050638010012516020025031540050063080010001010110.10.10.011 10 100 1 000 10 000 100 000Current in An Thermal stress (∫ i2 dt)gG type (for 500 V AC)0.011 10 100 1 000 10 000 100 000Current in AaM type (for 500 V AC except 1250 A for 400 V AC)10 000 00010 000 0001 000 000Thermal stress in A 2 s100 00010 0001 000Limited currents at peak kA10025 35 50 80 125 200 315 500 800 125032 40 63 100 160 250 400 630 1000Rating in An Limitation curvesgG type1003010310.32.5 Ieff0.10.1 0.2 0.5 1 2 5 10 20 50 100Prospective short-circuit at kA rms1 2501 000800630500400315250200160125100806350403225Thermal stress in A 2 s1 000 000100 00010 0001 000100 25 40 63 100 160 250 400 630 100032 50 80 125 200 315 500 800Rating in Afuse Characteristics121

B r e a k i n g a n d p r o t e c t i o n d e v i c e sSPX fuse carriersand fused isolatingswitchesDevices that incorporate fuses (isolatingswitches, fuse carriers, etc.) are efficient protectionmethods which are used according to localwork practices. However it is important to have agood knowledge of their functional limits: difficultyof selectivity, no accessories, etc.SPX RANGEAll the devices in the SPX range comply with standardIEC 60947-3. They take blade type fuse cartridges toprotect three-phase circuits against overloads andshort circuits.In SPX devices, the fuse cartridges are placed side byside.In SPX-V devices, the fuse cartridges are placed onebelow the other.Common characteristics:- 3 protected poles– Safe handling while energised- Protection against accidental contact– Fuse can be checked through transparent window– Voltage control via small opening in window– Sealable cover– Simultaneous switching on all poles- 1600 mechanical operations– Cover position indicated by auxiliary contact (accessory)– Screw connection for lug– Interchangeable connection accessoriesSPX-D devices are designed to break loaded circuits.They are available in a 3-pole version and a 3-pole +neutral (unprotected) version. They can be fitted with a direct or remotely mounted operating handle.- Double-break contacts with positive forced openingand closing- Category of use AC 23 AInterlocking:- Fuse cover in ON position- Door/panel in ON positionPadlocking:- Handles in OFF position (up to 3 padlocks)SPX fuse carriers: 5 sizesfrom 125 to 630 A (bladefuse sizes: 000, 00, 1, 2, 3)SPX-V fuse carriers:4 sizes from 160 to630 A (blade fusesizes: 00, 1, 2, 3)SPX RANGESPX-D fused isolating switches: 4 sizes from 160 to 630A (blade fuse sizes: 00, 1, 2, 3)122

TECHNICAL characteristicsSPX 000 SPX 00 SPX 1 SPX 2 SPX 3Size 000 00 1 2 3Nominal current ln 125 A 160 A 250 A 400 A 630 AType of currentNominal voltage UnAC (50-60 Hz)DC690 V AC250 V DCAC (50-60 Hz)DC690 V AC250 V DCAC (50-60 Hz)DC690 V AC440 V DCAC (50-60 Hz)DC690 V AC440 V DCAC (50-60 Hz)DC690 V AC440 V DCRated insulating voltage Ue 800 V 800 V 800 V 800 V 800 VRated impulse withstand voltage Uimp 6 kV 6 kV 6 kV 6 kV 6 kV400 V AC AC 23 B AC 23 B AC 23 B AC 23 B AC 23 B500 V AC AC 22 BAC 22 B,AC 23 B (125 A)AC 23 B AC 23 B AC 23 BCategory of use690 V AC AC 21 B AC 22 B AC 23 B AC 23 B AC 23 BEN 60947-3DC 21 B;220 V DCDC 22 B (100 A)DC 22 B (160 A) DC 22B DC 22B DC 22B440 V DCConditional rated short-circuit current(with gG/gL fuses)DC 21 B (80 A);DC 22 B (63 A)50 kA(peak 105 kA)DC 21 B (160 A);DC 22 B (125 A)50 kA(peak 105 kA)DC 22B DC 22B DC 22B50 kA(peak 105 kA)50 kA(peak 105 kA)50 kA(peak 105 kA)Power dissipated per pole, with bladetype fuse carrier (1) 9 W 12 W 23 W 34 W 48 WSPX-V 0060 mmSPX-V 00100 mmSPX-V 1 SPX-V 2 SPX-V 3Size 00 00 1 2 3Nominal current ln 160 A 160 A 250 A 400 A 630 AType of current AC (50-60 Hz) AC (50-60 Hz) AC (50-60 Hz) AC (50-60 Hz) AC (50-60 Hz)Nominal voltage Un 690 V AC 690 V AC 690 V AC 690 V AC 690 V ACRated insulating voltage Ue 800 V 800 V 1000 V 1000 V 1000 VRated impulse withstand voltage Uimp 6 kV 6 kV 12 kV 12 kV 12 kVCategory of use EN 60947-3Conditional rated short-circuit current(with gG/gL fuses)400 V AC 23 B AC 23 B500 V AC 23 B (120 A) AC 23 B (125 A) AC 23 B AC 23 B AC 23 B690 V AC 22 B AC 22 B AC 22 B AC 22 B AC 22 B50 kA(peak 105 kA)50 kA(peak 105 kA)100 kA(peak 220 kA)100 kA(peak 220 kA)100 kA(peak 220 kA)Power dissipated per pole, with bladetype fuse carrier (1) 12 W 12 W 23 W 34 W 48 W(1) Fuse carrier nominal current according to standard DIN 43620TECHNICAL characteristics123

B r e a k i n g a n d p r o t e c t i o n d e v i c e sSPX fuse carriers and fused isolating switches (continued)SPX-D 160 A 250 A 400 A 630 AFuses NH Size 00 Size 1 Size 2 Size 3Mounting on DIN Rail/Plate Plate Plate PlateRated insulation voltage Ui (V) 800 1000 1000 1000Rated dielectric strength 50 Hz 1 min (V) 6000 8000 8000 8000Rated impulse withstand voltage Uimp (kV) 8 12 12 12Rated thermal current Ith (40 °C) (A) 160 250 400 630Rated thermal current in enclosure Ithe (A) 160 250 400 630Power dissipation with cartridge fuses (1) (W) 13.5 18.7 30 48400 V AC21A 160 250 400 630400 V AC22A 160 250 400 630400 V AC23A 160 250 400 630500 V AC21A 160 250 400 630AC rated operational500 V AC22A 160 250 400 630current Ie (A)500 V AC23A 160 250 400 630(Rated frequency 50/60 Hz)690 V AC21A 160 250 400 630690 V AC22A 160 250 400 630690 V AC23A 125 200 315 400800 V AC20A 160 250 400 6301000 V AC20A - 250 400 6303 x 400 V AC23A 90 132 220 355AC rated operational powerPe (kW)3 x 500 V AC23A 110 160 250 3703 x 690 V AC23A 110 160 250 370Rated capacitor power (kVAr) 400 V 60 115 200 250Rated breaking capacity (A) 400 V; cos ϕ=0.35 to 0.45 1280 2000 3200 5100Rated making capacity (A) 400 V; cos ϕ=0.45 1600 2500 4000 6300Short-circuit withstand current (rms value) (2) (kA rms) 100 100 100 100Short-circuit making current (rms value) (2) (kA rms) 100 100 100 100Maximum cut-off current (peak value) (kA) 26.3 43.3 43.3 60.8Maximum power dissipation l 2 t (A 2 s x 10) 478 1600 1600 4600 TECHNICAL characteristicsMinimum number of mechanical operations (cycles) 10000 10000 10000 5000Minimum number of electrical operations 400 V-AC23 (cycles) 1000 1000 1000 1000Maximum weight (3/4 poles) (kg) 3.1/4 6.6/8 6.6/8 13/15(1) Power dissipation values of cartridge fuses used in type test(2) With a protective device limiting the cut-off current and the joule integral to the indicated values124

connection capacityThere are 3 possible connection methods for SPX and SPX-V:– plate/lug– flat connection terminals (accessory)– prism connection terminals (accessory)CageterminalExtension connectorwith 3 inputsPrismterminalFlat terminalfor flat barsSPX 000 SPX 00 SPX 1 SPX 2 SPX 3Lug mountingFlat fixing for flexiblecopper rail, for flexible orrigid copper and multi-corecablesPrism fixing for flexiblecopper rail, for flexible orrigid multicore copper andaluminium cablesOther fixingsConnection - M 8 M 10 M 10 M 12Tensilestrength- 12–14 Nm 30–35 Nm 30–35 Nm 35–40 NmConnection - 1.5–70 mm 2 70–150 mm 2 120–240 mm 2 150–300 mm 2Tensilestrength- 3 Nm 5–6 Nm 6–8 Nm 6–8 NmConnection - 16–70 mm 2 70–150 mm2 120–240 mm 2 150–300 mm 2TensilestrengthConnectionTensilestrength- 3 Nm 5–6 Nm 6–8 Nm 6–8 Nm3 inputsCage terminals  connector 1.5–50 mm 2 - - -Cat.No 6052 26 3 x 1.5–16 mm 24 Nm 3 Nm - - -Lug mountingFlat fixing for flexiblecopper rail, for flexible orrigid copper and multi-corecablesPrism fixing for flexiblecopper rail, for flexible orrigid multicore copper andaluminium cablesSPX-V 0060 mmSPX-V 00100 mmSPX-V 1 SPX-V 2 SPX-V 3Connection M 8 M 8 M 10 M 10 M 12Tensilestrength12–14 Nm 12–14 Nm 30–35 Nm 30–35 Nm 35–40 NmConnection 1,5–70 mm 2 1,5–70 mm 2 120–240 mm 2 120–240 mm 2 120–240 mm 2Tensilestrength3 Nm 3 Nm 6–8 Nm 6–8 Nm 6–8 NmConnection 16–70 mm 2 16–70 mm 2 120–240 mm 2 120–240 mm 2 120–240 mm 2Tensilestrength3 Nm 3 Nm 6–8 Nm 6–8 Nm 6–8 NmSPX-D 160 A 250 A 400 A 630 ARigid cable (Cu) max. (mm) 95 240 240 2 x 185Bar (Thickness/Width) max. (mm) 3/25 6/40 6/40 2 x 7/50Tightening torque (Nm) 13 24 24 45connection capacity125

B r e a k i n g a n d p r o t e c t i o n d e v i c e sSPX fuse carriers and fused isolating switches (continued)DimensionsSPXcgemphblSPX 000Installing on 60 mm collector rail50 74.589.560.5Ø 6sv606u6097yw1402277.547127.51432009460663.5127.5140601436125.5 25.544 308925.5 25.589 8959 30.5SPX 00/1/2/3Installing on 60 mm collector railxaxrqdftza b c d e f g h l m p q r xSPX 0 106 176 82.5 45 - 37 60 155 70 151 115 17 M8 33SPX 1 184 243 111.5 66 220 45.5 84 220 107 214.5 185 21.5 M10 57SPX 2 210 288 128 80 - 48 92 249 124 255 210 25 M10 65SPX 3 256 300 142.5 94.5 - 48 98.5 259 127.5 267 210 30 M12 81s t u v w y zSPX 0 97 59.5 200 94 62 94 87SPX 1 128.5 83 221 90 101 104.5 110.5SPX 2 145 97 228 98 118 128 124.5SPX 3 159.5 111.5 285 104.5 121.5 136.5 139SPX 00 SPX 1 SPX 2 SPX 3Dimensions77566251141 11150Ø 11 Ø 11130 130 1625050126

SPX-VSPX-V 00 on 60 mm collector rail135max. 254SPX-V 00 on 185 mm collector railusing a collector rail adaptor197.514513560931345560633289185120max. 23850Dimensions185289610100 50100455280130100 100280992185197148145263 16.5580610333314.5571855018527290max. 45776421Ø 13M833100 1003349.626.51526.583.5100.54926.51451623326.5SPX-V 00 on 100 mm collector railSPX-V 1/2/3 on 185 mm collector rail3157.584.526.526.55058127

B r e a k i n g a n d p r o t e c t i o n d e v i c e sSPX fuse carriers and fused isolating switches (continued)SPX-D 160 Awithout handleSPX-D5.4685534M7682.5515014510437 37375828 6A 131with direct handle49184with external handle4926.5 22.54.556Ø 3095Dimensions84.5955613128

SPX-DSPX-D 160 A and 400 A with direct handleBA1635122Ø 30E15 ±218031161200CD4101757081 214Ø 7max 75 / min 724565 115 65203Dimensions (mm) A B C D E Ø ØT250 A3P 274 111 216 246 4 10.5 M103P + N 329 166 216 246 4 10.5 M10400 A3P 274 111 216 246 5 10.5 M103P + N 329 166 216 246 5 10.5 M10SPX-D 630 A with direct handleBA21556Ø 12,5 4030615 ±2248402122222773175122327081 214Ø 9max 56 / min 736085 163 85Dimensions (mm) A B ØT3P 381 166 M12250 A3P + N 426 211 M12222Dimensions129

B r e a k i n g a n d p r o t e c t i o n d e v i c e sBack-upprotectionBack-up protection is the technique by whichthe breaking capacity of a circuit breakeris increased by coordinating it with anotherprotection device, placed upstream.This coordination makes it possible to usea protection device with a breaking capacitywhich is lower than the maximum prospectiveshort-circuit current at its installation point.The breaking capacity of a protection device must beat least equal to the maximum short circuit which mayoccur at the point at which this device is installed.The breaking capacity of a device can be lower than the maximum prospective short circuit (seeIEC 60364-4-435), provided that:- It is combined with a device upstream that has thenecessary breaking capacity at its own installationpoint,- The downstream device and the protected trunkingcan withstand the energy limited by the combination of the devices.Substantial savings can therefore be made by combiningdevices.The Back-up values given in the tables on the followingpages are based on laboratory tests carried out in accordance with IEC 60947-2.For single phase circuits (protected by 1P+N or2P circuit breakers) in a 380/415 supply, suppliedupstream by a 3-phase circuit,it is advisable to use the combination tables for230 V.Example of back-up protectionIk max = 30 kADPX 250 ER 250 ABreaking capacity = 50 kAIk max = 23 kADX 3 40 A - C curveBreaking capacity alone = 10 kABreaking capacity in associationwith DPX 250 ER = 25 kA3-level back-upBack-up protectionCBAA combination may be created on three levels if either of the followingconditions is met:• Combination with the main deviceUpstream device A must have an adequate breaking capacity at its point ofinstallation. Devices B and C are combined with device A. Simply check that theB + A and C + A combination values have the necessary breaking capacities.In this case, there is no need to check the combination of devices B and C.• Cascaded combinationThe combination is made between successive devices: upstream device A has anadequate breaking capacity at its point of installation. Device C is combined withdevice B, which is itself combined with device A. Simply check that the C + B andB + A combination values have the necessary breaking capacities.In this case, there is no need to check the combination of devices A and C.130

Back-up between distribution boardsBack-up in IT earthing systemsCombination applies to devices installed in the same distributionboard and also in different boards.It is therefore generally possible to benefit from theadvantages of combining devices located, for example, ina main distribution board and in a secondary board.The upstream device must always have the necessarybreaking capacity at its installation point.It is also possible tobenefit from the combinationof device B (forABoard n°1example a DX with abreaking capacity of10 kA) and the secondarydevices C (1P+NDX with a breakingBoard n°2capacity of 6 kA) on distributionboard no. 2.BUnder these conditionsthe DX + DNX combinationhas a breakingCcapacity of 25 kA.The values given in the tables on the followingpages are only for use in TN and TT earthingsystems. Although this practice is not widely used,these values may also be used for installationswith IT systems. It is therefore advisable to checkthat each individual protection device can breakthe maximum double fault current at the point inquestion on a single pole.Back-up protection / back-up between ACBs and MCcBs131

B r e a k i n g a n d p r o t e c t i o n d e v i c e sBack-up protection (continued)back-up between MCCBs and MCBsIn 3 phases networks with neutral - 400/415 V -according to IEC 60947‐2Upstream McbDownstream McbDX 3 600010 kACurves B,C, DDX 3 1000016 kACurves B,C, DDX 3 25 kACurves B,C, DDX 3 36 kACurve CDX 3 50 kACurves B,C, DDPX 3 16016÷160ADPX 3 25025÷250ADPX 25040÷250 ADPX 630160÷630 ADPX 1250-1600630÷1600 ADPX250ER ABDPX 400 AB90÷240 A320÷400 A10÷63A 10÷125A 10÷125A 10÷80A 10÷6 A 16 kA 25 kA 50 kA 25 kA 36 kA 70 kA 36 kA 70 kA 36 kA 70 kA 50-70kA 36 kA 36 kADX 3 4500 / 6 kACurve CDX 3 6000 / 10 kACurves B, C, DDX 3 10000 / 16 kACurves B, C, DDX 3 25 kACurves B, CDX 3 25 kACurves D, MADX 3 36 kACurve CDX 3 50 kACurves B, C, D, MA≤ 20 A 10 16 25 36 50 16 25 25 25 25 25 25 25 25 25 25 25 2525 A 10 16 25 36 50 16 25 25 25 25 25 25 25 25 25 20 25 2532 A 10 16 25 36 50 16 25 25 25 25 25 25 25 25 25 15 25 2540 A 10 16 25 36 50 16 25 25 25 25 25 25 25 20 20 15 25 25≤ 20 A - 16 25 36 50 16 25 25 25 25 25 25 25 25 25 25 25 2525 A - 16 25 36 50 16 25 25 25 25 25 25 25 25 25 20 25 2532 A - 16 25 36 50 16 25 25 25 25 25 25 25 25 25 15 25 2540 A - 16 25 36 50 16 25 25 25 25 25 25 25 20 20 15 25 2050 A - 16 25 36 50 16 25 25 25 25 25 25 25 16 16 12,5 25 1663 A - 16 - 36 - 16 25 25 25 25 25 20 20 16 16 12,5 20 16≤ 20 A - - 25 36 50 - 25 25 25 25 25 25 25 25 25 25 25 2525 A - - 25 36 50 - 25 25 25 25 25 25 25 25 25 20 25 2532 A - - 25 36 50 - 25 25 25 25 25 25 25 25 25 16 25 2540 A - - 25 36 50 - 25 25 25 25 25 25 25 20 20 16 25 2050 A - - 25 36 50 - 25 25 25 25 25 25 25 20 20 16 25 2063 A - - 25 36 - - 25 25 25 25 25 20 20 20 20 16 20 2080-100 A - - - - - - 25 25 25 25 25 20 20 20 20 16 20 20125 A - - - - - - 25 25 25 25 25 16 16 16 16 16 20 16≤ 25 A - - - 36 50 - - 36 - 36 36 30 30 30 30 30 30 3032÷50 A - - - 36 50 - - 36 - 36 36 36 36 36 36 36 30 3663÷80 A - - - - - - - 36 - 36 36 36 36 36 36 36 30 36100-125 A - - - - - - - 36 - 36 36 36 36 30 30 30 30 30≤ 10 A - - - 36 50 - - 36 - 36 36 30 30 30 30 30 - 3016÷63 A - - - 36 50 - - 36 - 36 36 36 36 36 36 36 - 3610÷63 A - - - - 50 - - 50 - - 50 - 50 - 50 50 - -80 A - - - - - - - 50 - - 50 - 50 - 36 36 - -≤ 4÷63 A - - - - - - - - - - - - 70 - 70 70 - -back-up between MCCBs and MCBs132

In 3 phases networks with neutral - 230/240 V -according to IEC 60947‐2Upstream McbDownstream McbDX 3 P+N (1 mod.)Curve CDX 345006 kADX 3600010 kADX 31000016 kADX 345006 kACurveCDX 3600010 kACurvesB, C, DDX 3 1000016 kACurves B, C, DDX 3 25 kACurves B, C, DDX 3 36 kACurve CDX 3 50 kACurves B, CDX 3 50 kACurve DDPX 3 16016÷160 ADPX 3 25025÷250 ADPX 25040÷250 ADPX 630160÷630 A 1250 DPX-1600630÷1600 ADPX250ERAB90÷240 ADPX400AB320÷400 ADNX 3 4500P+N (1 mod.)Curves C, DDX 3 4500 - 6kAP+N (1 mod.)Curve CDX 3 6000 - 10 kAP+N (1 mod.)Curves B, CDX 3 1000016kACurve CDX 3 45006kACurve CDX 3 600010 kACurves B, C, DDX 3 1000016kACurves B, C, DDX 3 25kACurves B, CDX 3 25kACurves D, MADX 3 36kACurve CDX 3 50kACurves B, C,D, MA10÷40 A 10÷40 A ≤ 20 A ≤ 40 A ≤ 63 A ≤ 32 A 40÷125 A ≤ 32 A 40÷125 A ≤ 32 A 40÷80 A ≤ 32 A 40÷63 A ≤ 32 A 40÷63 A 16 kA 25 kA 50 kA 25 kA 36 kA 70 kA 36 kA 70 kA 36 kA 70 kA 50-70kA36 kA 36 kA≤ 10 A 6 10 16 10 25 32 25 50 25 50 25 50 25 50 25 22 30 30 30 30 30 30 30 25 25 25 30 2516÷20 A 6 10 16 10 25 32 25 50 25 50 25 50 25 50 25 22 30 30 30 30 30 30 30 25 25 25 25 2525 A 6 10 - 10 25 32 25 50 25 - 25 50 25 50 25 22 25 25 25 25 25 25 25 20 20 20 20 2032 A 6 10 - - - - 25 - 25 - 25 - 25 - 25 16 16 16 16 16 16 16 16 10 10 10 10 10≤ 10 A 6 10 16 - 25 32 25 50 25 50 25 50 25 50 25 22 30 30 30 30 30 30 30 25 25 25 30 2516÷20 A 6 10 - - 25 32 25 50 25 50 25 50 25 50 25 22 30 30 30 30 30 30 30 25 25 25 25 2525 A 6 10 - - 25 32 25 50 25 - 25 50 25 50 25 22 25 25 25 25 25 25 25 25 25 25 20 2532 A 6 10 - - - - 25 - 25 - 25 - 25 - 25 16 16 16 16 16 16 16 16 16 16 16 10 1640 A - - - - - - 25 - 25 - 25 - 25 - 25 16 16 16 16 16 16 16 16 16 16 10 10 16≤ 10 A - - 16 - 25 32 25 50 25 50 50 50 50 50 50 22 30 30 30 30 30 30 30 25 25 25 30 2516÷20 A - - - - 25 32 25 50 25 50 50 50 50 50 50 22 30 30 30 30 30 30 30 25 25 25 25 2525 A - - - - 25 32 25 50 25 - 50 50 50 50 50 22 25 25 25 25 25 25 25 25 25 25 20 2532 A - - - - - - 25 - 25 - 50 - 50 - 50 16 16 16 16 16 16 16 16 16 16 10 10 1640 A - - - - - - 25 - 25 - 50 - 50 - 50 16 16 16 16 16 16 16 16 16 16 10 10 16≤ 10 A - - - - 25 32 25 50 25 50 50 70 70 50 50 22 30 30 30 30 30 30 30 25 25 25 30 2516÷20 A - - - - 25 32 25 50 25 50 50 70 70 50 50 22 30 30 30 30 30 30 30 25 25 25 25 25≤ 20 A - - - - 25 32 25 50 25 50 50 50 50 50 50 25 40 50 40 50 50 50 50 50 50 50 50 5025÷40 A - - - - 25 32 25 50 25 - 50 - 50 - 50 25 40 50 40 50 50 50 50 50 50 50 50 50≤ 20 A - - - - - 32 25 50 25 50 50 50 50 50 50 28 40 50 40 50 50 50 50 50 50 50 50 5025÷40 A - - - - - 32 25 50 25 - 50 - 50 - 50 28 40 50 40 50 50 50 50 50 50 50 50 5050 A - - - - - - 25 - - - 50 - - - - 28 40 50 40 50 50 50 50 30 30 25 36 3063 A - - - - - - 25 - - - 50 - - - - 28 40 50 40 50 50 50 50 30 30 25 30 30≤ 20 A - - - - - - - 50 32 50 50 70 70 70 70 35 40 50 40 50 50 50 50 50 50 50 50 5025÷40 A - - - - - - - 50 32 - 50 - 70 - 70 35 40 50 40 50 50 50 50 50 50 50 50 5050-63 A - - - - - - - - 32 - 50 - - - - 35 40 50 40 50 50 50 50 36 36 36 36 3680÷125 A - - - - - - - - - - - - - - - 35 40 50 40 50 50 50 50 32 32 32 36 32≤ 25 A - - - - - - - - - 60 50 50 50 70 70 - - 50 - - 60 55 60 55 60 50 - -32÷125 A - - - - - - - - - - 50 65 50 - 70 - - 65 - - 60 55 60 55 60 50 - -≤ 10 A - - - - - - - - - 60 50 50 50 70 70 - - 50 - - 60 55 60 55 60 50 - -16÷63 A - - - - - - - - - 60 50 65 50 70 70 - - 65 - - 60 55 60 55 60 50 - -10÷80 A - - - - - - - - - - - 85 72 85 72 - - - - - 75 - 75 - 75 75 - -≤ 4÷63 A - - - - - - - - - - - - - - - - - - - - 120 - 120 - 120 120 - -back-up between MCCBs and MCBs133

B r e a k i n g a n d p r o t e c t i o n d e v i c e sBack-up protection (continued)Back-up between FUSE CARTRIDGES AND MCBsIn 3 phases network with neutral400/415 V according to IEC 60947‐2In 3 phases network with neutral230/240 V according to IEC 60947‐2Back-up between FUSE CARTRIDGES AND MCBs / back-up between CIRCUIT BREAKERs and SWITCHesMCBs downstreamDX 3 6000 - 10 kAC and D curvesDX 3 10 000 - 15 kAC and D curvesDX 3 25-36-50 kAC curveFuses upstream gG type20 to 32 A 63 to 160 A1 to 40 A 100 10050 A to 125 A 1002 A to 40 A 100 10050 A to 63 A 10010 A to 40 A 100 10050 A to 63 A 100back-up between CIRCUIT BREAKERs and SWITCHes> OverloadsSwitch I is considered to be protected against overloadsif its rating is at least equal to that of theupstream circuit breaker D, or if the sum of the currentsof the devices C is not greater than the ratingof I. If this is not the case, the thermal stresses of thedevices and the conductors must be checked.> Short circuitsIn principle, switches must be systematically protectedby a circuit breaker placed upstream (see tablebelow). However, it is possible for the protection to beprovided by the devices placed downstream, by takingthe necessary wiring precautions to prevent any risk ofa short circuit between these devices and the switch,which must all be located in the same distributionboard.MCBs downstreamDX 3 6000 - 10 kAC and D curvesDX 3 10 000 - 15 kAC and D curvesDX 3 25-36-50 kAC curveIDC1 C2 C3 C4Fuses upstream gG type20 to 32 A 63 to 160 A1 to 40 A 100 10050 A to 125 A 1002 A to 40 A 100 10050 A to 63 A 10010 A to 40 A 100 10050 A to 63 A 100134

Back-up between DX circuit breakers and RCCBs (in kA)Upstream circuit breakersDX 3 curve C< 63 A(1,5 mod.1P + N < 40 A 50 and 63 ADownstream RCCBsper pole)80-125 125 A16 A 6 10 10 20 20 2525 A 6 10 10 20 20 252-pole 230 V4-pole 400 V40 A 6 10 10 15 20 2563 A 10 10 12.5 12.5 2580 A 12.5 12.5 25Back-up between DPX circuit breakers and DPX-I switches (in kA)Upstream circuit breakerDPX 3 160 DPX 3 250 DPX 250 DPX 630 DPX 1600 (MT) DPX 1600 (El)Downstream switch 25 kA 50 kA 25 kA 50 kA 36 kA 70 kA 36 kA 70 kA 50 kA 70 kA 50 kA 70 kADPX-I 160 25 50 25 50 36 50 36 70 36 50DPX-I 250 ER 25 50 25 50 36 50 36 70 36 50DPX-I 250 36 70 36 70 50 70DPX-I 630 In=400 A 36 70 50 70DPX-I 630 In=630 A 50 70DPX-I 1600 In=800 A 50 70DPX-I 1600 In=1250 A 50 70 20 20DPX-I 1600 In=1600 A 20 20DownstreamswitchBack-up between DPX circuit breakers and Vistop or DPX-I switches (in kA)Upstream circuit breakerDPX 3 160 DPX 3 250 DPX 250 DPX 630 DPX 1600 (MT) DPX 1600 (El)25 kA 50 kA 25 kA 50 kA 36 kA 70 kA 36 kA 70 kA 50 kA 70 kA 50 kA 70 kAVistop 63 25 36 25 36 36 50 36 50 36 36 36 36Vistop 160 25 36 25 36 36 50 36 50 36 36 36 36DPX‐IS 250 25 36 36 50 36 50 36 36 36 36DPX‐IS 400 36 50 50 70 36 36DPX‐IS 630 36 50 50 70 36 50back-up between CIRCUIT BREAKERs and SWITCHes135

B r e a k i n g a n d p r o t e c t i o n d e v i c e sSelectivity betweenprotection devicesSelectivity is a technique which consists ofcoordinating the protection in such a way thata fault on one circuit only trips the protectionplaced nearest to the fault, thus avoiding the restof the installation being put out of service.Selectivity improves continuity of service andsafety of the installationAB C D ESince almost all faults occur during use,partial selectivity may be adequate if theselectivity limit is higher than the value of themaximum short circuit which may occur atthe point of use (or at the end of the trunking).This is referred to as “operating selectivity”.This technique is very often adequate, moreeconomical and less restricting in terms ofimplementation.Selectivity between protection devices> Total SelectivitySelectivity between A and B is said to be “total” if it isprovided up to the value of the maximum prospectiveshort circuit at the point at which B is installed. Inthe selectivity tables, total selectivity “T”, indicatesthat there is selectivity up to the breaking capacityof device B. When the selectivity tables do not give“T”, the value given must be compared with the prospectiveshort-circuit value at the installation point tocheck whether the selectivity is total.> Partial selectivitySelectivity between A and B is said to be “partial”when the short-circuit level is higher than the valuegiven in the selectivity tables. This value defines theselectivity limit below which only circuit breaker Bwill open and above which circuit breaker A will openas well. There are a number of techniques for implementingselectivity:- Current sensing selectivity, used for terminal circuitswhich have low short-circuit levels- Time selectivity, provided by a delay on the trippingof the upstream circuit breaker- Dynamic selectivity, making optimum use of thecharacteristics of the Legrand devices- Logical selectivity, making use of the communicationpossibilities between devicesDX 3 40 ADPX 3 250160 AMIk : 8 kAIk : 3 kAThe selectivity limit of the combination ofthe DPX 3 250 25 kA (160 A) and the DX 3 10 kA(40 A - curve C) is 6 kA.As the maximum short-circuit level (Ik max)at the installation point is 8 kA, the selectivityis not total.However, there is total selectivity at the pointof use where the prospective short circuit isonly 3 kA.136

Current sensing selectivityThis technique is based on the difference in theintensity of the tripping curves of the upstream anddownstream circuit breakers. It is checked by comparingthese curves and ensuring that they do notoverlap. It applies for the overload zone and the shortcircuitzone, and the further apart the ratings of thedevices, the better the selectivity.• OverloadsTo have selectivity in the overload zone, the ratio of the setting currents (Ir) must be at least 2.• Short circuitsTo have selectivity in the short-circuit zone, the ratio of the magnetic setting currents (Im) must be at least 1.5.The selectivity limit is then equal to the magnetic tripping current Im A of the upstream circuit breaker.The selectivity is then total as long as Ik B is lowerthan Im A .Current sensing selectivity is therefore very suitablefor terminal circuits where the short circuits are relativelyweak.Current sensing selectivitytB: downstream MCBA: upstream MCBI P (kA)Non-limited currentLimitation curveof the MCBOnly B opensA and B openIr B Ir A Ik BIIm B Im AI kB : maximum short-circuit at the point at which MCB B is installedIk’ B Ik B Ik (kA)Ik B : prospective short-circuit at the point at which the device is installedIk’ B : short-circuit limited by device BThe selectivity is total for Ik BWhen the downstream circuit breaker, B, is a limitingdevice, the short-circuit current is limited in terms ofboth time and amplitude. The Selectivity is thereforetotal if the limited current Ik B which device B allows topass is lower than the tripping current of device A.Current sensing selectivity137

B r e a k i n g a n d p r o t e c t i o n d e v i c e sSelectivity between protection devices (continued)Time selectivityThis technique is based on the difference in the timesof the tripping curves of the circuit breakers in series.It is checked by comparing the curves and is used forselectivity in the short-circuit zone. It is used in additionto current sensing selectivity in order to obtainselectivity beyond the magnetic setting current of theupstream circuit breaker (Im A ). The following is thereforenecessary:- It must be possible to set a time delay on theupstream circuit breaker- The upstream circuit breaker must be able to withstandthe short-circuit current and its effects for thewhole period of the time delay - The trunking through which the current passes mustbe able to withstand the thermal stresses (I 2 t).The non-tripping time of the upstream device mustbe longer than the breaking time (including any timedelay) of the downstream device.DPX 3 and DMX 3 circuit breakers have a number of timedelay setting positions for creating selectivity with anumber of stages.Electronic releaseswith constant I 2 t settingThe use of circuit breakers with electronic releaseson which a constant I 2 t setting is possible improves the selectivity.t (s)BAt (s)BASet at constant I 2 tNormal settingTime selectivity / Dynamic selectivity138Im B Im ATmDynamic selectivityI (A)Dynamic selectivity is a particular type of selectivitydeveloped by Legrand. It is based on making maximumuse of the limitation characteristics of moulded casecircuit breakers and extends the concept of time coordinationto the highest short-circuit currents.Dynamic selectivity is implemented between two levelsof circuit breakers by installing:- Upstream: electronic DPX 3 circuit breakers with S1 orS2 type releases.- Downstream: electronic DPX 3 circuit breakers with S1I (A)Removal of the unwanted short delay section of thetripping curve on the upstream circuit breaker avoidsoverlapping of the tripping curves. This option is availableon DMX 3 and S2 electronic DPX 3 .or S2 type releases, or thermal-magnetic DPX 3 or evenDX 3 circuit breakers.Each type S1 and S2 electronic release has a rotaryselector switch SEL with two positions:- High: to obtain high levels of selectivity- Low: to obtain standard levels of selectivity.The electronic DPX 3 circuit breaker set to “SEL = High”inserts a short activation delay which enables highlevels of selectivity to be achieved even for high intensityshort-circuit currents.

This solution is particularly advisable for installationscharacterised by high short-circuit current values,where the circuit breakers concerned by the two levelsof dynamic selectivity are in the same consumer unit,and when the line to be protected has one of the followingcharacteristics:- Length < 3 metres- Double insulation (if the line to be protected is a cable).Before studying the dynamic selectivity, the timeselectivity in the medium intensity short-circuit interventionzone must be checked on the tripping curves.When this condition has been checked, the followingrules must be applied:- The SEL selector switch on the electronic DPX installed upstream of the selectivity system must beset to “High”- The circuit breaker installed downstream of theselectivity system can be an electronic DPX with theSEL selector switch set to “Low”, a thermal-magneticDPX or a DX.Advantages- Higher selectivity limits (for high intensityshort-circuit currents) than the conventionalcurrent sensing selectivity limits- Better continuity of service and safer thanwith current sensing selectivity- Flexible, simple and economical solutionDisadvantages- Two-level selectivity only- Introduction of a short activation delay witha consequence on the thermal stress limitationcurvesExamples of dynamic selectivity between two levelsUpstream- A: electronic DPX with “S2” release and the SEL selectorswitch set to High (tm = 0.2, considered to be result ofthe previous time selectivity study on medium intensityshort circuit)Downstream- B: electronic DPX with “S2” release and the SEL selectorswitch set to Low (tm = 0.1, considered to be result ofthe previous time selectivity study on medium intensityshort circuit)- D: electronic DPX with “S1” release and SEL selectorswitch set to Low.It is possible to install other circuit breakers downstreamof the two dynamic selectivity levels: C (thermal-magneticDPX) and E (DX).For high intensity short-circuit currents downstream ofC or downstream of E, the selectivity with the upstreamdevices is no longer dynamic but current sensing.BElectronic DPXtm = 0.1SEL = LowCThermalmagneticDPXAElectronic DPXtm = 0.2SEL = HighDElectronic DPXSEL = LowEDXTime selectivity139

B r e a k i n g a n d p r o t e c t i o n d e v i c e sSelectivity betweenprotection devices (continued)Logical selectivityLogical selectivityLogical selectivity is an “intelligent” type of selectivityperformed by exchanging data between electronic DPXor DMX 3 linked by an external connection.Logical selectivity concentrates on the medium andhigh intensity short-circuit zone.Thus, if there is a short circuit, the part of the installationaffected by the fault is immediately identifiedand isolated using the circuit breaker placed directlyupstream.This acts immediately, without taking account of thevarious time delay settings, which therefore reducesto the absolute minimum, the time taken to eliminatethe fault. This enables the following:- Selectivity on several levels, in addition to the varioustime delays- Considerable reduction of the thermal and electrodynamicstresses in the cables or bars, and thusoptimisation of the dimensions of the installation.Logical selectivity can be implemented using:- Electronic DPX circuit breakers with S2 protectionunit, with a 12 V DC external auxiliary power supply.- DMX 3 circuit breakers with MP4 or MP6 electronicprotection unit.Application rules- To ensure logical selectivity on medium intensityshort circuits, the constant time tripping curve (Tm)must be used. Using the constant I 2 t curve does notallow correct operation of the logical selectivity- All the circuit breakers on the logical selectivitysystem, apart from the last device on the system, musthave the SEL selector switch set to High, with Tm equalto or greater than 100 ms.- The time delay settings Tm of the circuit breakersinstalled at the same level in the logical selectivitysystem (apart from the last level) can be identical.- All the circuit breakers located at the last level of thelogical selectivity system must have the SEL selectorswitch set to Low, with a Tm lower than that of the circuitbreakers at higher levels.If there is a short circuit (medium or high intensity) inthe installation, the logical selectivity operating principleis as follows:- The circuit breaker that detects the short-circuitcurrent sends a signal, via the connecting cable, to thecircuit breaker located immediately upstream, whilechecking that there is no signal from a device locateddownstream.- If the circuit breaker that detected the fault doesnot receive any command from a device downstream,it operates immediately without taking account of anyprogrammed time delays (eg: Tm and/or SEL = High).- However, if the circuit breaker in question receives asignal from a downstream device, it will remain closed,keeping to the programmed time delays(eg: Tm and/or SEL = High).Connection to electronic DPXEach electronic DPX (version S2) has the following:On the front panel:- A two-position selector switch SEL, which can be setto High and LowOn the side-mounted draw-out terminal block:- 2 logical selectivity inputs, intended for the link withthe circuit breakers located downstream- 2 logical selectivity outputs, intended for the linkwith the circuit breakers located upstream140

Examples of 3-level logical selectivityFault 1: short circuit downstream of AFault 2: short circuit downstream of BAAOUTINOUTINBCBCOUTINOUTINOUTINOUTINDDOUTINOUTINOnly circuit breaker A detects the fault.Since it does not receive any signal from thecircuit breakers downstream, it trips immediately,without taking account of the various programmedtime delays.Circuit breakers A and B detect the fault. Circuitbreaker A receives a signal from the downstream circuitbreaker B. It therefore remains closed, keeping to theprogrammed time delays. However, since circuit breakerB does not receive any signal from the circuit breakersdownstream, it trips immediately, without taking accountof the various programmed time delays.In both the cases described above, to preventa double connection to circuit breaker A, it isalso possible to use the following wiring:AAA2OUTINOUTINOUTINBCBCOUTINDOUTINOUTINOUTINDOUTINOUTINLogical selectivity141

B r e a k i n g a n d p r o t e c t i o n d e v i c e sSelectivity betweenprotection devices (continued)Maximum number of electronic DPX that can beconnectedMaximum total length of the wired linkMaximum length of the wired link between twodevicesType of cable and installationTechnical dataunlimitedunlimited30 metresCU cable 1.5 mm 2or shielded cableLogical selectivity is particularly suitable for installations characterisedby high short-circuit current values and with highcontinuity of service requirements.Advantages- Reduction of the thermal and electrodynamicstresses on the cables orbars, thus optimising the dimensionsof the installation- Creation of selectivity on a numberof levels, in addition to the varioustime delays provided by the timeselectivity.Disadvantages- Need for an auxiliary power supplyand a wired link between the circuitbreakers- DPX must be fitted with type S2electronic protection.What happens if there is a break in the wired link or the auxiliary power supply?In both cases, there is no longer selectivity between the circuit breakers.AABCBno alim12 VccCDDLogical selectivitySituation 1: If there is a break in the logical selectivitywired link between D and B, in the event of a short circuitdownstream of D, B will act immediately without takingaccount of any programmed time delays, thus ensuringthe installation is protected.Situation 2: If there is a break in the 12 V DC auxiliarypower supply of B, in the event of a short circuit downstreamof B, A will act immediately, thus ensuring theinstallation is protected.142

Legrand software “XL Pro 2 Calculation” offers severalways to check the selectivity. In the example below,with a 630 kVA transformer, the selectivity is totalbetween the upstream DPX 1600 breaker and thedownstream DPX 630.Checking selectivity with XL Pro 2 Calculation< The selectivity can be checkeddirectly in the resulting data of theconcerned line…< …or drawing andcomparing the tripping curvesof the circuit breakersLogical selectivity143

B r e a k i n g a n d p r o t e c t i o n d e v i c e sSelectivity betweenprotection devices (continued)selectivity Tables (3-phase network 400/415 V AC)DMX 3 / DMX 3Upstream ACBDownstreamDMX 3 2500 DMX 3 4000 DMX 3 6300ACB800 A 1000 A 1250 A 1600 A 2000 A 2500 A 3200 A 4000 A 5000 A 6300 A800 A T T T T T T T T T1000 A T T T T T T T TDMX 3 25001250 A T T T T T T T1600 A T T T T T T2000 A T T T T T2500 A T T T TDMX 3 40003200 A T T T4000 ADMX 3 / DX and DMX 3 / DPXselectivity Tables (3-phase network 400/415 V AC)Upstream ACBDownstreamDMX 3 2500 DMX 3 4000 DMX 3 4000MCCB800 A 1000 A 1250 A 1600 A 2000 A 2500 A 3200 A 4000 A 5000 A 6300 ADX 3 T T T T T T T T T TDPX 3 160/250 (1) T T T T T T T T T TDPX 250 (1) T T T T T T T T T TDPX 630 (1) T T T T T T T T T TDPX 1250 (1)thermalmagneticDPX 1600 (1)electronic(1) All breaking capacity630 A T T T T T T T T T T800 A T T T T T T T T T1000 A T T T T T T T T1250 A T T T T T T T630 & 800 A T T T T T T T T1000 A T T T T T T T1250 & 1600 A T T T T T T T144

Thermal-magnetic DPX / DPXUpstream MCCBDownstreamMCCBDPX³ 160(16, 25, 36, 50 kA)DPX³ 250(25, 36, 50, 70 kA)DPX & DPX-H 250(36, 70 kA)DPX & DPX-H 630(36, 70 kA)DPX & DPX-H 1600(50, 70 kA)In (A) 63 80 100 125 160 100 160 250 63 100 160 250 320 400 500 630 630 800 1000 125016 0,63 0,8 1 1,25 1,6 1 1,6 2,5 0,63 1 1,6 2,5 3,2 4 5 6,3 16 16 16 1625 0,63 0,8 1 1,25 1,6 1 1,6 2,5 0,63 1 1,6 2,5 3,2 4 5 6,3 16 16 16 1640 0,63 0,8 1 1,25 1,6 1 1,6 2,5 0,63 1 1,6 2,5 3,2 4 5 6,3 16 16 16 16DPX³ 160(16, 25, 36, 50 kA)63 0,8 1 1,25 1,6 1 1,6 2,5 1 1,6 2,5 3,2 4 5 6,3 16 16 16 1680 1 1,25 1,6 1 1,6 2,5 1 1,6 2,5 3,2 4 5 6,3 16 16 16 16100 1,25 1,6 1,6 2,5 1,6 2,5 3,2 4 5 6,3 16 16 16 16125 1,6 1,6 2,5 1,6 2,5 3,2 4 5 6,3 16 16 16 16160 2,5 2,5 3,2 4 5 6,3 16 16 16 16DPX³ 250(25, 36, 50, 70 kA)DPX³ 250electronic (1)(25, 36, 50, 70 kA)100 1,6 2,5 1,6 2,5 3,2 4 5 6,3 16 16 16 16160 2,5 2,5 3,2 4 5 6,3 16 16 16 16250 3,2 4 5 6,3 16 16 16 16100 1,6 2,5 1,6 2,5 3,2 4 5 6,3 16 16 16 16160 2,5 2,5 3,2 4 5 6,3 16 16 16 16250 3,2 4 5 6,3 16 16 16 16DPX 250DPX-H 250(36, 70 kA)DPX 250DPX-H 250electronic (1)(36, 70 kA)DPX 630DPX-H 630(36, 70 kA)DPX 630DPX-H 630electronic (1)(36, 70 kA)DPX 1600DPX-H 1600(50, 70 kA)63 1 1,6 2,5 1 1,6 2,5 3,2 4 5 6,3 16 16 16 16100 1,6 2,5 1,6 2,5 3,2 4 5 6,3 16 16 16 16160 2,5 2,5 3,2 4 5 6,3 16 16 16 16250 3,2 4 5 6,3 16 16 16 1663 1 1,6 2,5 1 1,6 2,5 3,2 4 5 6,3 16 16 16 16100 1,6 2,5 1,6 2,5 3,2 4 5 6,3 16 16 16 16160 2,5 2,5 3,2 4 5 6,3 16 16 16 16250 3,2 4 5 6,3 16 16 16 16320 4 5 6,3 10 10 10 10400 5 6,3 10 10 6 7,5500 6,3 10 10 6 7,5630 10 6 7,5250 4 5 6,3 6,3 8 8 8400 5 6,3 6,3 8 8 8630 8 8 8630 8 7,5 7,5800 7,5 7,51000 7,51250selectivity Tables (3-phase network 400/415 V AC)(1) Standard factory setting of magnetic threshold Im(2) Selectivity low145

B r e a k i n g a n d p r o t e c t i o n d e v i c e sSelectivity betweenprotection devices (continued)selectivity Tables (3-phase network 400/415 V AC)146DPX 3 160DPX 3 250DPX 3 250electronicDPX 250DPX-H 250DPX 250electronicDPX-H 250electronicDPX 630DPX-H 630DPX 630electronicDPX-H 630electronicDPX 1600 andDPX-H 1600DPX 1600 andDPX-H 1600electronicDownstreamMCCB16 kA25 kA50 kA25 kA50 kA70 kA25 kA36 kA70 kA36 kA70 kA36 kA70 kA36 kA70 kA36 kA70 kA50 et70 kA50 et70 kAElectronic DPX / DPX (Sel-High)DPX³ 250(25, 36, 50, 70 kA)Upstream MCCBDPX and DPX-H 250(36, 70 kA)DPX and DPX-H 630(36, 70 kA)DPX and DPX-H 1600(50, 70 kA)In (A) 100 160 250 63 100 160 250 320 400 630 630 800 1000 125016÷80 T T T T T T T T T T T T T100-125 T T T T T T T T T T T160 T T T T T T T T T16÷80 16 16 16 T T T T T T T T T T100 16 16 T T T T T T T T T125 16 T T T T T T T T T160 16 T T T T T T T T16÷80 25 25 25 25 25 25 36 36 36 36 36 36 36100-125 25 25 25 25 36 36 36 36 36 36 36160 25 25 36 36 36 36 36 36 36100 16 16 T T T T T T T T T160 16 T T T T T T T T250 T T T T T100 25 25 25 25 T T T T T T T160 25 25 T T T T T T T250 T T T T T T100 36 36 36 36 36 36 36 36 36 36 36160 36 36 36 36 36 36 36 36 36250 36 36 36 36 36 36100 T T 25 25 T T T T T T T160 T 25 T T T T T T T250 T T T T T T100 36 36 36 36 36 T T T T160 36 36 36 36 T T T T250 36 36 T T T T100 36 36 36 36 36 36 36 36 36160 36 36 36 36 36 36 36 36250 36 36 36 36 36 3663 T T T 25 25 25 T T T T T T T100 T T 25 25 T T T T T T T160 T 25 T T T T T T T250 T T T T T T63 36 36 36 36 36 36 36 36 36 36 36 36 36100 36 36 36 36 36 36 36 36 36 36 36160 36 36 36 36 36 36 36 36 36250 36 36 36 36 36 3640 36 36 36 25 25 25 T T T T T T T100 36 36 25 25 T T T T T T T160 36 25 T T T T T T T250 T T T T T T40 36 36 36 36 36 36 36 36 36 36 36 36 36100 36 36 36 36 36 36 36 36 36 36 36160 36 36 36 36 36 36 36 36 36250 36 36 36 36 36 36320÷500 25 T T T T630 T T T320÷500 25 36 36 36 36630 36 36 36250 25 25 T T T T400 25 T T T T630 T T T250 25 25 36 36 36 36400 25 36 36 36 36630 36 36 36630 T T T800-1000 T T1250 T630 36 36 36800 36 361250 36

DPX 3 160DPX 3 250DPX 3 250electronicDPX 250DPX-H 250DPX 250electronicDPX-H 250electronicDPX 630DPX-H 630DPX 630electronicDPX-H 630electronicDownstreamMCCBDPX 1600 andDPX-H 1600DPX 1600 andDPX-H 1600electronicDPX 3 250(25, 36, 50, 70 kA)Electronic DPX / DPX (Sel-Low)DPX and DPX-H 250(36, 70 kA)Upstream MCCBDPX and DPX-H 630(36, 70 kA)DPX and DPX-H 1600(50, 70 kA)In (A) 100 160 250 40 100 160 250 250 400 630 630 800 1250 160016÷80 1 1,6 2,5 3,5 3,5 3,5 3,5 6 6 6,3 T T T T16 kA 100-125 1,6 2,5 - 3,5 3,5 6 6 6,3 T T T T160 2,5 - - 3,5 6 6 6,3 T T T T16÷80 1 1,6 2,5 3,5 3,5 3,5 3,5 6 6 6,3 T T T T25 kA 100-125 1,6 2,5 - 3,5 3,5 6 6 6,3 T T T T160 2,5 - - 3,5 6 6 6,3 T T T T16÷ 80 1 1,6 2,5 3,5 3,5 3,5 3,5 6 6 6,3 T T T T50 kA 100-125 1,6 2,5 - 3,5 3,5 6 6 6,3 T T T T160 2,5 - - 3,5 6 6 6,3 T T T T100 1,6 2,5 3,5 3,5 6 6 6,3 T T T T25-50 160 2,5 3,5 6 6 6,3 T T T TkA250 6 6,3 T T T T100 1,6 2,5 1,6 1,6 6 6 6,3 T T T T70 kA 160 2,5 1,6 6 6 6,3 T T T T250 6 6,3 T T T T25-36kA70 kA36 kA70 kA36 kA70 kA36 kA70 kA36 kA70 kA50-70kA50-70kA100 1,6 2,5 1,6 2,5 6 6 6,3 T T T T160 2,5 2,5 6 6 6,3 T T T T250 - 6 6,3 T T T T100 1,6 2,5 1,6 2,5 6 6 6,3 T T T T160 2,5 2,5 6 6 6,3 T T T T250 - 6 6,3 T T T T63 - 1,6 2,5 - 3,5 3,5 3,5 8 8 8 T T T T100 - 1,6 2,5 - - 3,5 3,5 8 8 8 T T T T160 - - 2,5 - - - 3,5 6 6 6 T T T T250 - - - - - - - - 6 6 T T T T63 - 1,6 2,5 - 3,5 3,5 3,5 8 8 8 T T T T100 - 1,6 2,5 - - 3,5 3,5 8 8 8 T T T T160 - - 2,5 - - - 3,5 6 6 6 T T T T250 - - - - - - - - 6 6 T T T T40 1 1,6 2,5 - 1 1,6 2,5 8 8 8 T T T T100 - 1,6 2,5 - - 1,6 2,5 6 6 6 T T T T160 - - 2,5 - - - 2,5 6 6 6 T T T T250 - - - - - - - - 6 6 T T T T40 1 1,6 2,5 - 1 1,6 2,5 8 8 8 T T T T100 - 1,6 2,5 - - 1,6 2,5 6 6 6 T T T T160 - - 2,5 - - - 2,5 6 6 6 T T T T250 - - - - - - - - 6 6 T T T T320 6 6,3 20 20 20 T400 - 6,3 20 20 20 T500 - 6,3 20 20 20 T630 - 20 20 T320 6 6,3 20 20 20 36400 - 6,3 20 20 20 36500 - 6,3 20 20 20 36630 - 20 20 36250 5 5 20 20 20 T400 - 5 20 20 20 T630 - 20 20 T250 5 5 20 20 20 36400 - 5 20 20 20 36630 - 20 20 36630 15 20 20800 20 201000 20 201250 T630 15 15 20800 15 201250 201600selectivity Tables (3-phase network 400/415 V AC)147

B r e a k i n g a n d p r o t e c t i o n d e v i c e sSelectivity betweenprotection devices (continued)selectivity Tables (3-phase network 400/415 V AC)DownstreamMCBDX 3 4500 / 6 kADX 3 6000 / 10 kADX 3 10000 / 16 kAcurves B - CDX 3 6000 / 10 kAcurve DDX 3 10000 / 16 kAcurves C - DDX 3 25 kAcurves B - CDX 3 25 kAcurve DDX 3 MA 25 kADX 3 36 kADX 3 50 kAcurves B - CDX 3 50 kAcurves DDX 3 MA 50 kAThermal-magnetic DX 3 / DX 3Upstream MCCB and MCBDNX 3 4500 et DX 3 4500 6 kADX 3 6000 10 kADX 3 10000 16 kAcurve CDNX 3 4500DX 3 6000 10 kAcurve DDX 3 25 kA, DX 3 36 kA, DX 3 50 kA etDX 3 10000 16 kA (80 à 125 A)curve CDX 3 25 kA, DX 3 50kA etDX 3 10000 16kA (80 à 125 A)curve DDX 3 25 kA, DX 3 50kA etDX 3 10000 16kA (80 à125 A)Curve DIn (A) 32 40 50 63 32 40 50 63 32 40 50 63 80 100 125 32 40 50 63 80 100 125≤ 6 240 300 375 472 384 480 600 756 700 1200 1500 3000 4000 T T 700 1200 1500 3000 4000 T T10 240 300 375 472 384 480 600 756 500 700 1000 1800 3000 5000 T 500 700 1000 1800 3000 5000 T16 240 300 375 472 384 480 600 756 300 500 700 1300 2000 3600 5500 384 500 700 1300 2000 3600 550020 240 300 375 472 384 480 600 756 300 400 500 1000 1600 3000 4000 384 480 600 1000 1600 3000 400025 240 300 375 472 384 480 600 756 240 400 500 800 1300 2400 3300 384 480 600 800 1300 2400 330032 300 375 472 480 600 756 300 500 600 1000 1800 2700 480 600 756 1100 1450 270040 375 472 600 756 400 600 800 1600 2400 600 756 1000 1250 240050 472 756 500 800 900 1700 756 950 1200 170063 650 900 1200 950 1200 1500≤ 6 240 300 375 472 384 480 600 756 700 1200 1500 3000 4000 T T 500 1200 1500 3000 4000 T T10 240 300 375 472 384 480 600 756 500 700 1000 1800 3000 5000 T 400 700 1000 1800 3000 5000 T16 240 300 375 472 384 480 600 756 300 500 700 1300 2000 3600 5500 384 500 700 1300 2000 3600 550020 300 375 472 480 600 756 400 500 1000 1600 3000 4000 384 480 600 1000 1600 3000 400025 375 472 600 756 500 800 1300 2400 3300 480 600 800 1300 2400 330032 472 756 600 1000 1800 2700 480 600 756 1100 1450 270080 600 750 1200 1500100 750 1500125≤ 6 700 1200 1500 3000 4000 T T 500 1200 1500 3000 4000 T T10 500 700 1000 1800 3000 5000 T 400 700 1000 1800 3000 5000 T16 300 500 700 1300 2000 3600 5500 384 500 700 1300 2000 3600 550020 300 400 500 1000 1600 3000 4000 384 480 600 1000 1600 3000 400025 240 400 500 800 1300 2400 3300 480 600 800 1300 2400 330032 300 500 600 1000 1800 2700 480 600 756 1100 1450 270040 400 600 800 1600 2400 600 756 1000 1250 240050 500 800 900 1700 756 950 1200 170063 650 900 1200 950 1200 150080 600 750 1200 1500100 750 1500125≤ 6 700 1200 1500 3000 4000 T T 500 1200 1500 3000 4000 T T10 500 700 1000 1800 3000 5000 T 400 700 1000 1800 3000 5000 T16 300 500 700 1300 2000 3600 5500 384 500 700 1300 2000 3600 550020 400 500 1000 1600 3000 4000 384 480 600 1000 1600 3000 400025 500 800 1300 2400 3300 384 480 600 800 1300 2400 330032 600 1000 1800 2700 480 600 756 1100 1450 270040 800 1600 2400 600 756 1000 1250 240050 900 1700 756 950 1200 170063 1200 950 1200 150080 1200 1500100 150012510 500 700 1000 1800 3000 5000 T 500 700 1000 1800 3000 5000 T12,5 300 500 700 1300 2000 5000 T 384 500 700 1300 2000 3600 550016 300 500 700 1300 2000 3600 5500 384 500 700 1300 2000 3600 550025 500 800 1300 2400 3300 384 480 600 800 1300 2400 330040 800 1600 2400 600 756 1000 1250 240063 1200 950 1200 150010 500 700 1000 1800 3000 500 700 1000 180016 300 500 700 1300 2000 384 500 700 130020 300 400 500 1000 1600 384 480 600 100025 240 400 500 800 1300 384 480 600 80032 300 500 600 1000 480 600 75640 400 600 800 600 75650 500 800 75663 6508010 500 700 1000 1800 3000 500 700 1000 180016 300 500 700 1300 2000 384 500 700 130020 400 500 1000 1600 384 480 600 100025 500 800 1300 384 480 600 80032 600 1000 480 600 75640 800 600 75650 75663≤ 4 700 1200 1500 3000 4000 700 1200 1500 30006,3 700 1200 1500 3000 4000 700 1200 1500 300010 500 700 1000 1800 3000 500 700 1000 180012,5 300 500 700 1300 2000 500 700 1000 180016 300 500 700 1300 2000 384 500 700 130025 500 800 1300 384 480 600 80040 800 600 75663148

DPX / DX 3DownstreamMCBDX 3 4500 / 6 kADX 3 6000 / 10 kADX 3 10000 / 16 kAcurves B - CDX 3 10000 / 16 kAcurve CDX 3 6000 / 10 kAcurve DDX 3 10000 / 16 kAcurve DDX 3 25 kAcurves B - CDX 3 25 kAcurve DDX 3 MA 25 kADX 3 36 kAcurves CDX 3 50 kAcurves B - C - DDX 3 MA 50 kADPX 3 160E6 kA, 25 kA et 50 kAUpstream Mccb and McbDPX 3 25025 kA, 36 kA et 70kADPX 250 and DPX-H 250 DPX 630,DPX-H 630DPX and DPX-H1250 and 1600DMX 3 2500 and4000DPX 250ER AB DPX 400In (A) 40 63 80 100 125 160 40 100 160 200 250 100 160 250 160÷4000 90 130 170 240 320÷400≤ 6 12 T T T T T T T T T T T T T T T T T T T10 7 7 T 7 T T T T T T T 15 T T T T T T T T16 6 6 T 6 T T 7 T T T T 10 T T T T T T T T20 5 5 5 5 T T 5 T T T T 8 T T T T T T T T25 4,5 4,5 4,5 4,5 8,5 T 4 T T T T 6 T T T T T T T T32 - 3 4 4 7 10 - 5 T T T 5 T T T 5 T T T T40 - 3 3 3 6 8 - 5 T T T 5 10 T T 4 5 T T T50 - - 3 3 5,5 7 - 4 T T T 4 8 T T 4 4 5,5 T T63 - - 3 3 5 6 - 4 T T T 4 8 T T 3 3 5 5 T80 - - - - 5 6 - 4 T T T - 8 T T - - - T T100 - - - - - 5 - - T T T - 6 T T - - - T T125 - - - - - 3 - - T T T - 3 8 T - - - T T≤ 6 T T T T T T T T T T T T T T T T T T T T10 7,5 7,5 T T T T T T T T T 15 T T T T T T T T16 6 6 6 T T T 6 T T T T 10 T T T T T T T T20 5 5 6 6 T T 5 8 T T T 8 T T T T T T T T25 4,5 4,5 4,5 4,5 8,5 T - 6 T T T 6 T T T T T T T T32 - 3 4 4 7 T - 5 T T T 5 T T T T T T T T80 - - - - 5 6 - - T T T - 8 T T - - - T T100 - - - - - 5 - - T T T - 6 T T - - - T T125 - - - - - 3 - - - T T - 3 7 T - - - T T≤ 6 T T T T T T T T T T T T T T T T T T T T10 T T T T T T T T T T T 15 T T T T T T T T16 T T T T T T T T T T T 10 T T T T T T T T20 T T T T T T T T T T T 8 T T T T T T T T25 T T T T T T T T T T T 6 T T T T T T T T32 - T T T T T - T T T T 5 T T T T T T T T40 - T T T T T - T T T T 5 10 T T 3,5 T T T T50 - 4 4 5 10 10 - 20 T T T 4 8 T T 3 4 T T T63 - - 3 5 10 10 - 15 T T T 4 8 T T 2 3 T T T80 - - - - 5 6 - 4 T T T - 8 T T - - - T T100 - - - - - 5 - - T T T - 6 T T - - - T T125 - - - - - 3 - - T T T - 3 8 T - - - 3 T≤ 6 T T T T T T T T T T T T T T T T T T T T10 T T T T T T T T T T T 15 T T T T T T T T16 T T T T T T T T T T T 10 T T T T T T T T20 T T T T T T T T T T T 8 T T T T T T T T25 T T T T T T T T T T T 6 T T T T T T T T32 - T T T T T - T T T T 5 T T T T T T T T40 - T T T T T - T T T T 5 10 T T 4,5 T T T T50 - - 4 5 10 10 - 20 T T T 4 8 T T 3,5 3,5 T T T63 - - 3 5 10 10 - 15 T T T 4 8 T T 3,5 3,5 T T T80 - - - - 5 6 - - T T T - 8 T T - - - T T100 - - - - - 5 - - T T T - 6 T T - - - T T125 - - - - - 3 - - - T T - 3 7 T - - - T T10 T T T T T T T T T T T 15 T T T T T T T T12,5 T T T T T T T T T T T 15 T T T T T T T T16 T T T T T T T T T T T 10 T T T T T T T T25 T T T T T T T T T T T 6 T T T T T T T T40 - T T T T T - T T T T 5 10 T T 4,5 T T T T63 - - 3 5 10 10 - - T T T 4 8 T T 3,5 3,5 T T T10 T T T T T T T T T T T 15 T T T T16 T T T T T T T T T T T 10 T T T T20 T T T T T T T T T T T 8 T T T T25 T T T T T T T T T T T 6 T T T T32 - T T T T T - T T T T 5 T T T T40 - T T T T T - T T T T 5 10 T T T50 - - 4 5 10 10 - 20 T T T 4 8 T T T63 - - 3 5 10 10 - 15 T T T 4 8 T T T80 - - - - 5 6 - 4 T T T - 8 T T T10 T T T T T T T T T T T 15 T T T 3616 T T T T T T T T T T T 10 T T T 3620 T T T T T T T T T T T 8 T T T 3625 36 T T T T T T T T T T 6 T T T 3632 - T T T T T - T T T T 5 T T T 3640 - T T T T T - T T T T 5 10 T T 3650 - - 4 5 10 10 - 20 T T T 4 8 T T 3663 - - - 5 10 10 - 15 T T T 4 8 T T 36≤ 6,3 T T T T T T T T T T T T T T T 3610-12,5 T T T T T T T T T T T 15 T T T 3616 T T T T T T T T T T T 10 T T T 3625 36 T T T T T T T T T T 6 T T T 3640 - T T T T T - T T T T 5 10 T T 3663 - - - 5 10 10 - - T T T 4 8 T T 36selectivity Tables (3-phase network 400/415 V AC)149

B r e a k i n g a n d p r o t e c t i o n d e v i c e sChoice ofproductsDMX 3 aCBs and dmx 3 -I trip-free switchesDMX 3 -N 2500-6300 DMX 3 -H 2500-6300 DMX 3 -L 2500-6300Icu (400 V AC) 50 kA 70 kA 100 kAVersion Fixed Draw-out Fixed Draw-out Fixed Draw-outPoles 3P 4P 3P 4P 3P 4P 3P 4P 3P 4P 3P 4PIn (A)800 286 21 286 31 287 21 287 31 286 41 286 51 287 41 287 51 286 61 286 71 287 61 287 711000 286 22 286 32 287 22 287 32 286 42 286 52 287 42 287 52 286 62 286 72 287 62 287 721250 286 23 286 33 287 23 287 33 286 43 286 53 287 43 287 53 286 63 286 73 287 63 287 731600 286 24 286 34 287 24 287 34 286 44 286 54 287 44 287 54 286 64 286 74 287 64 287 742000 286 25 286 35 287 25 287 35 286 45 286 55 287 45 287 55 286 65 286 75 287 65 287 752500 286 26 286 36 287 26 287 36 286 46 286 56 287 46 287 56 286 66 286 76 287 66 287 763200 286 27 286 37 287 27 287 37 286 47 286 57 287 47 287 57 286 67 286 77 287 67 287 774000 286 28 286 38 287 28 287 38 286 48 286 58 287 48 287 58 286 68 286 78 287 68 287 7850006300Electronic protection unitsElectronic protection units and accessoriesCommunicationmodule12 V dcexternalpower supplyDMX 3 -I 2500 - 6300EarthleakagemoduleExternal coil forearth leakagemoduleModuleprogrammableoutputMP4 LI MP4 LSI MP4 LSIg288 00 288 01 288 02 288 05 288 06 288 07 288 11 288 12DMX 3 aCBs and dmx 3 -I trip-free switchesVersion Fixed Draw-outPoles 3P 4P 3P 4P1250 286 83 286 93 287 83 287 931600 286 84 286 94 287 84 287 942000 286 85 286 95 287 85 287 95In (A)2500 286 86 286 96 287 86 287 963200 286 87 286 97 287 87 287 974000 286 88 286 98 287 88 287 9850006300Conversion of a fixed device into a draw-out deviceDevice DMX 3 /DMX 3 -I 2500 DMX 3 /DMX 3 -I 4000Poles 3P 4P 3P 4PBase for draw-out device 289 02 289 03 289 04 289 05Transformation kit 289 09 289 10 289 11 289 12150

287 56 288 51 288 37 288 82 288 96SupplyShunt tripsUndervoltagereleasesControl auxiliariesDelayedundervoltagereleasesMotoroperatorsClosing coils24 V ac/dc 288 48 288 55 288 34 288 4148 V AC/DC 288 49 288 56 288 35 288 42110 V AC/DC 288 50 288 57 288 62 288 36 288 43230 V AC/DC 288 51 288 58 288 63 288 37 288 44415 V AC 288 52 288 59 288 38 288 45440 V AC 288 53 288 60 288 39 288 46480 V AC 288 54 288 61 288 40 288 47Key locking in“open” positionLocking optionsKey locking in“draw-out” positionRonis lock 288 30 288 33Profalux lock 288 31 288 322 hole support frame for above locks 288 28Door lockingLeft-hand and right-hand side mounting 288 20Padlocking in“open” positionPadlocking system for ACBs 288 21Padlocking system for safety shutters 288 26Equipment for supply invertorsInterlockingmecanismDMX 3 2500 288 64DMX 3 4000 288 65AccessoriesRear terminalsSpreadersConnexionInterlocking cableAutomationcontrol unitType 1 Type 2 Type 3 Type 4 Type 5 Type 6 Standard Communicating289 20 289 21 289 21 289 21 289 21 289 21 261 93 261 94Accessories for connexion with barsDMX 3 2500 DMX 3 4000Fixed version Draw-out version Fixed version Draw-out version3P 4P 3P 4P 3P 4P 3P 4PFlat 288 84 288 85 288 92 288 93Vertical 288 82 288 83 288 96 288 97 288 94 288 95Horizontal 288 96 288 97 288 94 288 95Flat 288 86 288 87 288 86 288 87Vertical 288 88 288 89 288 88 288 89Horizontal 288 90 288 91 288 90 288 91DMX 3 aCBs and dmx 3 -I trip-free switches151

B r e a k i n g a n d p r o t e c t i o n d e v i c e s420 010 420 157 420 205dPx circuit breakers and DPX-I trip-free switchesIcu (230 V)PolesIn(A)DPX-E 12516 kA1P16 250 0020 250 0125 250 0232 250 0340 250 0450 250 0563 250 0680 250 07100 250 08125 250 09DPX 3 160 thermal-magneticIcu (400 V) 16 kA 25 kA 36 kA 50 kAPoles 3P 4P 3P 4P 3P 4P 3P 4PIn(A)16 420 000 420 010 420 040 420 050 420 080 420 090 420 120 420 13025 420 001 420 011 420 041 420 051 420 081 420 091 420 121 420 13140 420 002 420 012 420 042 420 052 420 082 420 092 420 122 420 13263 420 003 420 013 420 043 420 053 420 083 420 093 420 123 420 13380 420 004 420 014 420 044 420 054 420 084 420 094 420 124 420 134100 420 005 420 015 420 045 420 055 420 085 420 095 420 125 420 135125 420 006 420 016 420 046 420 056 420 086 420 096 420 126 420 136160 420 007 420 017 420 047 420 057 420 087 420 097 420 127 420 137DPX 3 160 thermal-magnetic with earth fault protectionIcu (400 V) 16 kA 25 kA 36 kA 50 kAdPx circuit breakers and DPX-I trip-free switchesPoles 4P 4P 4P 4PIn(A)16 420 030 420 070 420 110 420 15025 420 031 420 071 420 111 420 15140 420 032 420 072 420 112 420 15263 420 033 420 073 420 113 420 15380 420 034 420 074 420 114 420 154100 420 035 420 075 420 115 420 155125 420 036 420 076 420 116 420 156160 420 037 420 077 420 117 420 137DPX 3 250 thermal-magneticIcu (400 V) 25 kA 36 kA 50 kA 70 kAPoles 3P 4P 3P 4P 3P 4P 3P 4PIn(A)100 420 205 420 215 420 235 420 245 420 265 420 275 420 605 420 615160 420 207 420 217 420 237 420 247 420 267 420 277 420 607 420 617250 420 209 420 219 420 239 420 249 420 269 420 279 420 609 420 619DPX 3 250 thermal-magnetic with earth fault protectionIcu (400 V) 25 kA 36 kA 50 kA 70 kAPoles 4P 4P 4P 4P100 420 225 420 255 420 285 420 625In160 420 227 420 257 420 287 420 627(A)250 420 229 420 259 420 289 420 629152

420 225 420 369 420 649dPx circuit breakers and DPX-I trip-free switchesDPX 3 250 electronicIcu (400 V) 25 kA 36 kA 50 kA 70 kAPoles 3P 4P 3P 4P 3P 4P 3P 4PIn(A)40 420 302 420 312 420 332 420 342 420 362 420 372 420 632 420 642100 420 305 420 315 420 335 420 345 420 365 420 375 420 637 420 647160 420 307 420 317 420 337 420 347 420 367 420 377 420 638 420 648250 420 309 420 319 420 339 420 349 420 369 420 379 420 639 420 649DPX 3 250 electronic with measure functionsIcu (400 V) 25 kA 36 kA 50 kA 70 kAPoles 3P 4P 3P 4P 3P 4P 3P 4PIn(A)40 420 402 420 412 420 432 420 442 420 462 420 472 420 665 420 675100 420405 420 415 420 435 420 445 420 465 420 475 420 667 420 677160 420 407 420 417 420 437 420 447 420 467 420 477 420 668 420 678250 420 409 420 419 420 439 420 449 420 469 420 479 420 669 420 679DPX 3 250 electronic with integratedearth fault protectionIcu (400 V) 25 kA 36 kA 50 kA 70 kAPoles 4P 4P 4P 4PIn(A)40 420 322 420 352 420 382 420 655100 420 325 420 355 420 385 420 657160 420 327 420 357 420 387 420 658250 420 329 420 359 420 389 420 659DPX 3 250 electronic with integratedearth fault protection and measure functionsIcu (400 V) 25 kA 36 kA 50 kA 70 kAPoles 4P 4P 4P 4PIn(A)40 420 422 420 452 420 482 420 685100 420 425 420 455 420 485 420 687160 420 427 420 457 420 487 420 688250 420 429 420 459 420 489 420 689dPx circuit breakers and DPX-I trip-free switches153

B r e a k i n g a n d p r o t e c t i o n d e v i c e s256 32 257 32253 73 260 55DPX 630Release Thermal magnetic ElectronicIcu (400 V) 36 kA 70 kA 36 kA 70 kAPoles 3P 3P + 5N 4P 3P 3P + 5 N 4P 3P 4P 3P 4PIn (A)DPX 250Release Thermal magnetic ElectronicIcu (400 V) 36 kA 70 kA 36 kA 70 kAPoles 3P 3P + 5 N 4P 3P 3P + 5 N 4P 3P 4P 3P 4PIn (A)40 253 28 253 45 253 52 253 69 254 01 254 07 254 13 254 1963 253 29 253 46 253 53 253 70100 253 30 253 47 253 54 253 71 254 03 254 09 254 15 254 21160 253 31 253 41 253 48 253 55 253 72 254 04 254 10 254 16 254 22250 253 32 253 42 253 49 253 56 253 66 253 73 254 05 254 11 254 17 254 23250 255 21 255 36 256 01 256 05320 255 22 255 32 255 37 255 42 255 52 255 57400 255 23 255 33 255 38 255 43 255 53 255 58 256 02 256 06 256 10 256 14500 255 25 255 35 255 39 255 45 255 55 255 59630 255 24 255 34 255 40 255 44 255 54 255 60 256 03 256 07 256 11 256 15dPx circuit breakers and DPX-I trip-free switchesDPX 1250 - 1600Release Thermal magnetic Electronic S1 Electronic S2Icu (400 V) 50 kA 70 kA 50 kA 70 kA 50 kA 70 kAPoles 3P 4P 3P 4P 3P 4P 3P 4P 3P 4P 3P 4PIn (A)800 258 02 258 09 258 16 258 23 257 02 257 06 257 10 257 14 257 26 257 30 257 34 257 381000 258 03 258 10 258 17 258 241250 258 04 258 11 258 18 258 25 257 03 257 07 257 11 257 15 257 27 257 31 257 35 257 391600 257 04 257 08 257 12 257 16 257 28 257 32 257 36 257 40Electronic earth leakage modules for DPX (Adjustable sensitivity: 0.03 - 0.3 - 1 - 3 A)DeviceDPX 250DPX 630In (A)3-pole4-polemounted side by side mounted underneath mounted side by side mounted underneath160 260 51250 260 54 260 55400 260 60260 61260 63 (1)630 260 64260 65260 67 (1)154

420 199 420 299253 99DPX 3 160 magnetic onlyIcu (400 V) 16 kA 25 kAPoles 3P 3PIn(A)16 420 710 420 71425 420 711 420 71550 420 712 420 71663 420 713 420 717DPX 3 250 magnetic onlyIcu (400 V) 36 kA 70 kAPoles 3P 3PIn(A)100 420 718 420 722160 420 719 420 723200 420 720 420 724250 420 721 420 725DPX 630 electronicmagnetic onlyIcu (400 V) 16 kA 25 kAPoles 3P 3PIn(A)320 420 726 420 728400 420 727 420 729DPX-I trip-free switchesIn (A)DPX 3 -I 160 DPX 3 -I 250 DPX-I 250 DPX-I 630 DPX-I 16003P 4P 4P+elp 3P 4P+elp 4P 3P 4P 3P 4P 3P 4P160 420 198 420 199 420 197250 420 299 420 298 420 300 253 98 253 99400 255 86 255 87630 255 88 255 89800 257 94 257 951250 257 96 257 971600 257 98 257 99elp = earth leakage protectiondPx circuit breakers and DPX-I trip-free switches155

B r e a k i n g a n d p r o t e c t i o n d e v i c e s421 040 421 036 421 011 421 016 421 022265 46DevicesEquipment and accessories for plug-in and draw-out versionDPX 3 1600 DPX 3 250 DPX 250 DPX 630 DPX 16003P 4P 3P 4P 3P 4PTulip contacts 265 29 265 30 265 50 265 51Front terminal265 31 265 32 265 37 265 52 265 53 265 58Plug-in version421 421 421 421Rear terminal 265 33 265 34 265 38 265 54 265 55 265 59mounting base040 041 042 043Flat rear terminal 265 35 265 36 265 39 265 56 265 57 265 60Fixed version to Front terminal 265 82 265 83draw-out version Rear terminal 265 84 265 85Plug-in version to draw-out version(“Debro-lift” mechanism)265 45 265 46 265 47 265 66 265 67 265 68Set of connectors (6 pins) 421 044 421 044 098 19Set of connectors (8 pins) 263 99 263 99Extractor handles (set of 2) 263 43 263 68Isolated handle for drawing-out 265 75 265 75 265 75Signalling contact plugged-in/drawn-out 265 74 265 74 265 74Key lock for “Debrolift”DPX only 265 76 265 76 265 76mechanism motorised DPXor rotary handle265 78 265 78 265 804P+ elm3P4P4P+ elm3P4PdPx circuit breakers and DPX-I trip-free switchesSupplyAuxiliary contact orfault signalDPX 3 160 and250DPX 250 toDPX 1600,DX-IS 1600AuxiliariesShunt releases Undervoltage releases Time lag undervoltage releasesDPX 3 160and 250DPX 250 toDPX 1600,DX-IS 1600,DPX-Ifor DPX 3 160and 250DPX 250 toDPX 1600,DX-IS 1600,DPX-ITime lagmoduleRelease forDPX-IS,DPX250/630Releasesfor DPX250 to DPX1600421 010421 011 261 60 261 75 261 85421 04812VAC/DC 421 012 421 01824 V AC 421 013 261 64 421 019 261 8024 V DC 421 013 261 64 421 019 261 8148 V AC 421 014 261 65 421 02048 V DC 421 014 261 65 421 020 261 82110 V AC 421 015 261 66 421 021 261 86110 V DC 421 015 261 66 421 021230 V AC 421 016 261 67 421 022 261 83 261 90230 V DC 421 016 261 67277 V AC 421023400 V AC 421 017 261 68 421 024 261 84 261 91400 V DC 421 017 261 68 421 017480 V DC 421 025156

262 11 262 79421 031421 044421 072Accessories, rotary and motor driven handlesDPX 3 160 DPX 3 250 DPX 250 DPX 630 DPX 16003P 421 054 421 056 262 26/28 (1) 262 44 262 64Sealable terminal 4P 421 055 421 057 262 27/29 (1) 262 45 262 65shields3P (rear terminals) 421 050 421 0524P (rear terminals) 421 051 421 053Insulated shield set of 3 421 070 421 070 262 30 262 30 262 66Padlocking accessory 262 21 262 40 262 60Cage terminal3P 421 026 421 0304P 421 027 421 031262 35 262 50 262 69High capacity cage terminal 262 51 262 70Adaptator for lug 262 31 262 46Extended front terminals 262 32 262 47 262 67/68 (2)Spreaders3P 421 028 262 33 262 48 262 734P 421 029 262 34 262 49 262 74Swivel rear 3P 421 032 421 034 263 31 263 50terminals4P 421 033 421 035 263 32 263 51Flat rear terminals3P 421 036 421 038 265 27 263 52 263 80/81(3)4P 421 037 421 039 265 28 263 53 263 82/83 (3)standard 421 000 421 000 262 22 262 41 262 61standard (ele+elp) 421 001 421 001for emergency use 421 002 421 002 262 24 (4) 262 24 (4)Direct rotaryfor emergency use (ele+elp) 421 003 421 003handleEurolocks locking accessory 262 25 262 25Profalux locking accessory 421 006 421 006Ronis locking accessory 421 007 421 007standard 421 004 421 004 262 79 262 81 262 83for emergency use 421 005 421 005 262 80 (4) 262 82 (4) 262 84Vari-depth handle Eurolocks locking accessory 262 92 262 92 262 92Profalux locking accessory 421 009 421 009 262 93 262 93 262 93Ronis locking accessory 421 008 421 008 262 94 262 94 262 9424 V 261 30 261 40230 V 261 34 261 44 261 54lateral - multivoltage 421 060 421 060frontal - multivoltage 421 061 421 061Ronis locking accessory(front)421 062 421 062 261 59 261 59 261 59Profalux locking accessoryMotor driven421 063 421 063(front)handleRonis locking accessory421 065 421 065(later.)Profalux locking accessory(later.)421 066 421 066mechanical lock (frontal) 421 064 421 064mechanical lock (lateral) 421 067 421 067Din rail adaptor 421 068 421 069Din rail adaptor for Mccb 421 071 421 072Mechanical interlock 421 058 421 058(1) Long/short | (2) In < 1250 A: Cat.No 262 67 - In = 1600 A: Cat.No 262 68 | (3) Short/long(4) To be fit on Cat.No 262 22dPx circuit breakers and DPX-I trip-free switches157

B r e a k i n g a n d p r o t e c t i o n d e v i c e s270 46 270 58 270 10 271 04 271 50271 76drx circuit breakersDRX 100Icu (415 V) 10 kA 20 kA 25 kA 35 kAPoles 3P 4P 3P 4P 1P 2P 3P 4P15 270 00 270 10 270 20 270 30 270 40 270 50 270 60 270 7020 270 01 270 11 270 21 270 31 270 41 270 51 270 61 270 7125 270 02 270 12 270 22 270 32 270 42 270 52 270 62 270 7230 270 03 270 13 270 23 270 33 270 43 270 53 270 63 270 73In (A) 40 270 04 270 14 270 24 270 34 270 44 270 54 270 64 270 7450 270 05 270 15 270 25 270 35 270 45 270 55 270 65 270 7560 270 06 270 16 270 26 270 36 270 46 270 56 270 66 270 7675 270 07 270 17 270 27 270 37 270 47 270 57 270 67 270 77100 270 08 270 18 270 28 270 38 270 48 270 58 270 68 270 78DRX 250Icu (415 V) 18 kA 25 kA 36 kAPoles 3P 4P 3P 4P 3P 4P125 271 00 271 06 271 12 271 18 271 24 271 30150 271 01 271 07 271 13 271 19 271 25 271 31In (A) 175 271 02 271 08 271 14 271 20 271 26 271 32200 271 03 271 09 271 15 271 21 271 27 271 33225 271 04 271 10 271 16 271 22 271 28 271 34Supplywith 1 auxiliaryElectrical accessoriesAuxiliariy contact blocwith 1 alarmwith 1 auxiliary+ 1 alarmShunt tripsUndervoltagereleasesUp to 250 V AC/DC 271 40 271 41 271 4212 V AC/DC 271 50 271 6024 V AC/DC 271 51 271 6148 V AC/DC 271 52 271 62110/130 V AC 271 53 271 63200/240 V AC 271 54 271 64277 V AC 271 54 271 67380/415 V AC 271 55 271 65440/480 V AC 271 55 271 66drx circuit breakers158Connection accessories, padlocking and rotary handlesDevice DRX 100 DRX 250Poles 2P 3P 4P 3P 4PInsulating shields 271 81 271 82 271 81 271 82Seasable terminal shields 271 91 271 83 271 84 271 85 271 86Up to 50 A 271 70 271 72Cage terminal*from 60 to 100 A 271 71 271 73Up to 250 A 271 74 271 75Padlocking system (up to 3 padlocks) 271 80 271 81Rotary handleDirect on DRX 271 76 271 78Vari-depth handle 271 77 271 79* Available by set of 60 pieces: Cat.No 271 92 (up to 50 A), Cat.No 271 93 (60 to 100 A), Cat.No 271 94 (up to 250 A)

407 417 407 456 407 497407 536 407 601DX 3 lexic MCBs, rcds and rcbosMCBs DX 3 6000 - 10 kACurve B Curve C Curve DIn (A) 1P 1P+N 2P 3P 4P 1P 1P+N 2P 3P 4P 1P 2P 3P 4P0,5 - - - - - 407 645 407 691 407 774 - - - 408 007 - -1 - - - - - 407 646 407 692 407 776 407 821 407 890 407 949 408 008 408 053 408 1112 - - 407 491 - - 407 647 407 693 407 777 407 822 407 891 407 950 408 009 408 054 408 1123 - - - - - 407 648 407 694 407 778 407 823 407 892 407 951 408 010 408 055 408 1134 - - - - - 407 649 407 695 407 779 407 824 407 893 407 952 408 011 408 056 408 1146 407 415 - 407 492 407 530 407 593 407 650 407 696 407 780 407 825 407 894 407 953 408 012 408 057 408 11510 407 416 407 454 407 493 407 531 407 594 407 652 407 697 407 782 407 827 407 896 - 408 014 408 058 408 11616 407 417 407 455 407 494 407 532 407 595 407 654 407 700 407 784 407 829 407 898 - 408 015 408 059 408 11720 407 418 407 456 407 495 407 533 407 596 407 655 407 701 407 785 407 830 407 899 - 408 016 408 060 408 11825 407 419 407 457 407 496 407 534 407 597 407 656 407 702 407 786 407 831 407 900 - 408 017 408 061 408 11932 407 420 407 458 407 497 407 535 407 598 407 657 407 703 407 787 407 832 407 901 - 408 018 408 062 408 12040 407 421 - 407 498 407 536 407 599 407 658 407 704 407 788 407 833 407 902 - 408 019 408 063 408 12150 407 422 - 407 499 407 537 407 600 407 659 - 407 789 407 834 407 903 - 408 020 408 064 408 12263 407 423 - 407 500 407 538 407 601 407 660 - 407 790 407 835 407 904 - 408 021 408 065 408 123MCBs DX 3 10000 - 16 kACurve BCurve CIn (A) 1P 2P 3P 4P 1P 1P+N 2P 3P 4P 2P 3P 4P1 408 880 408 952 - - 409 125 - 409 213 409 265 409 347 - - -2 408 881 408 953 409 002 - 409 126 409 145 409 214 409 266 409 348 - - -3 408 882 408 954 409 003 409 077 409 127 - 409 215 409 267 409 349 - - -6 408 884 408 956 409 005 409 079 409 129 409 148 409 217 409 269 409 351 - - -10 408 885 408 957 409 006 409 080 409 131 409 150 409 219 409 271 409 353 - - -16 408 887 408 959 409 008 409 082 409 133 409 152 409 221 409 273 409 355 - - -20 408 888 408 960 409 009 409 083 409 134 409 153 409 222 409 274 409 356 - - -25 408 889 408 961 409 010 409 084 409 135 - 409 223 409 275 409 357 - - -32 408 890 408 962 409 011 409 085 409 136 - 409 224 409 276 409 358 - - -40 408 891 408 963 409 012 409 086 409 137 - 409 225 409 277 409 359 - - -50 - 408 964 409 013 409 087 409 138 - 409 226 409 278 409 360 - - -63 - 408 965 409 014 409 088 409 139 - 409 227 409 279 409 361 - - -80 - 408 966 409 015 409 089 409 140 - 409 228 409 280 409 362 409 058 409 506 409 540100 - 408 967 409 016 409 090 409 141 - 409 229 409 281 409 363 409 059 409 507 409 541125 - - - - 409 142 - 409 230 409 282 409 364 409 060 409 508 409 542DX 3 lexic MCBs, rcds and rcbos159

B r e a k i n g a n d p r o t e c t i o n d e v i c e s409 279 409 364 409 782 409 885410 012MCBs DX 3 25 kACurve B Curve C Curve DIn (A) 2P 3P 4P 1P 2P 3P 4P 2P 3P 4P2 - - - 409 752 409 765 409 778 409 791 409 817 409 830 409 8436 - - - 409 753 409 766 409 779 409 792 409 818 409 831 409 84410 409 715 409 728 409 741 409 754 409 767 409 780 409 793 409 819 409 832 409 84516 409 716 409 729 409 742 409 755 409 768 409 781 409 794 409 820 409 833 409 84620 409 717 409 730 409 743 409 756 409 769 409 782 409 795 409 821 409 834 409 84725 409 718 409 731 409 744 409 757 409 770 409 783 409 796 409 822 409 835 409 84832 409 719 409 732 409 745 409 758 409 771 409 784 409 797 409 823 409 836 409 84940 409 720 409 733 409 746 409 759 409 772 409 785 409 798 409 824 409 837 409 85050 409 721 409 734 409 747 409 760 409 773 409 786 409 799 - 409 838 409 85163 409 722 409 735 409 748 409 761 409 774 409 787 409 800 - 409 839 409 85280 - - 409 749 409 762 409 775 409 788 409 801 - 409 840 409 853100 - - 409 750 409 763 409 776 409 789 409 802 - 409 841 409 854125 - - 409 751 409 764 409 777 409 790 409 803 - 409 842 409 855MCBs DX 3 36 kACurve CIn (A) 2P 3P 4P10 410 007 410 020 410 03316 410 008 410 021 410 03420 410 009 410 022 410 03525 410 010 410 023 410 03632 410 011 410 024 410 03740 410 012 410 025 410 03850 410 013 410 026 410 03963 410 014 410 027 410 04080 410 015 410 028 410 041MCBs DX 3 50 kACurve B Curve C Curve DIn (A) 2P 4P 2P 3P 4P 2P 3P 4P10 410 097 410 121 410 147 410 160 410 173 410 199 410 212 410 22516 410 098 410 122 410 148 410 161 410 174 410 200 410 213 410 22620 410 099 410 123 410 149 410 162 410 175 410 201 410 214 410 22725 410 100 410 124 410 150 410 163 410 176 410 202 410 215 410 22832 410 101 410 125 410 151 410 164 410 177 410 203 410 216 410 22940 410 102 410 126 410 152 410 165 410 178 410 204 410 217 410 23050 - 410 127 410 153 410 166 410 179 - 410 218 410 23163 - 410 128 410 154 410 167 410 180 - 410 219 410 232DX 3 lexic MCBs, rcds and rcbos160MCBs DX 3 - Magnetic only36 kA 50 kAIn (A) 2P 3P 4P 3P 4P1,6 409 866 409 876 409 886 410 246 410 2562,5 409 867 409 877 409 887 410 247 410 2574 409 868 409 878 409 888 410 248 410 2586,3 409 869 409 879 409 889 410 249 410 25910 409 870 409 880 409 890 410 250 410 26012,5 409 871 409 881 409 891 410 251 410 26116 409 872 409 882 409 892 410 252 410 26225 409 873 409 883 409 893 410 253 410 26340 - 409 884 409 894 410 254 410 26463 - 409 885 409 895 410 255 410 265

410 440 410 518 410 644Add-on differential modules For McbAC typeHpi typeSensitivityIn (A)2P230/400 V AC3P400 V AC4P400 V AC2P230/400 V AC3P400 V AC4P400 V AC30 mA300 mA300 mA (s)40 410 401 410 471 410 499 410 434 410 53363 410 402 410 472 410 500 410 435 410 486 410 53463* 410 576 410 605 410 63680-125 410 624 410 577 410 606 410 63740 410 413 410 474 410 511 410 446 410 54563 410 414 410 475 410 512 410 489 410 54663* 410 608 410 64080-125 410 62840 410 52063 410 424 410 477 410 521 410 457 410 493 410 5551 A (s) 63 410 426 410 523 410 462 410 560300 mA up 63 410 583 410 611 410 643to 1 A 80-125 410 584 410 612 410 644*compact406 258 406 260 406 262 406 266 406 278 406 282406 291Auxiliaries and accessoriesAuxiliary changeover switch (CA) 406 258Signalling auxiliariesFault signalling changeover switch (SD) 406 260Fault signalling + auxiliary changeover switch (CA+SD) 406 262Auxiliary changeover switch + fault signalling changeable in auxiliary (CA+SD/CA) 406 266Shunt releases12 to 48 V AC/DC 406 276110 to 415 V AC 406 278Undervoltage release24 to 48 V AC/DC 406 280230 V AC 406 282230 V AC standard 406 291Motor driven control module24 to 48 V AC with re-closing automatic function integrated 406 293230 V AC with re-closing automatic function integrated 406 295Emergency release 230 V AC with add-in battery (battery item 406 285) 406 287STOP&GO automatic resetting Compatible with : 2P RCDs, 2P RCBOs, 2P MCBs < 63 AStandard 406 288Autotest 406 289DX 3 lexic MCBs, rcds and rcbos161

B r e a k i n g a n d p r o t e c t i o n d e v i c e s411 525 411 591 411 676 411 695SensitivityIn(A)2-pole230 V ACRCDs DX 3 -IDAC type A type Hpi type4-pole - 400 V ACNeutral onright‐hand side2-pole230 V AC4-pole - 400 V ACNeutral onright‐hand side2-pole230 V AC4-pole400 V ACNeutral onright‐hand side10 mA 16 411 500 - 411 550 - - -30 mA25 411 504 411 660 411 554 411 674 411 590 411 69440 411 505 411 661 411 555 411 675 411 591 411 69563 411 506 411 662 411 556 411 676 411 592 411 69680 411 507 411 663 411 557 411 677 - 411 697100 411 508 - - 411 678 - -100 mA (s) 100 411 537 - - - - -300 mA300 mA (s)25 411 524 411 664 090 74 411 684 - -40 411 525 411 665 090 75 411 685 - -63 411 526 411 666 090 76 411 686 - -80 411 527 411 667 090 77 411 687 - -100 411 528 - - 411 688 - -40 - 411 668 - - - -63 411 543 411 669 - - - -DX 3 lexic MCBs, rcds and rcbos162

410 802411 149411 192 411 2416064 00RCBOs DX 3 6 000 - 10 kAAC type A type Hpi typeSensitivity10 mA30 mA300 mAIn(A)Single pole - 230 V ACBlack neutralleadBlue neutralleadSingle pole+ Neutral onright‐hand side230 V AC2-pole230 V AC4-pole400 V AC4-pole400 V ACSingle pole+ Neutral onright‐hand side230 V AC10 - - 410 778 411 149 - - -16 - - 410 779 411 150 - - -20 - - - 411 151 - - -2 - - 410 782 - - - -6 - - 410 783 - - - 410 85310 6064 00 6064 10 410 784 411 157 411 185 411 233 410 85416 6064 01 6064 11 410 785 411 158 411 186 411 234 410 85520 6064 02 6064 12 410 786 411 159 411 187 411 235 410 85625 6064 03 6064 13 410 787 411 160 411 188 411 236 410 85732 6064 04 6064 14 410 788 411 161 411 189 411 237 410 85840 - - 410 789 411 162 411 190 - 410 85945 6064 05 6064 15 - - - - -50 - - - 411 163 411 191 - -63 - - - 411 164 411 192 - -2 - - 410 810 - - - -6 - - 410 811 - - - 410 88110 - - 410 812 411 171 411 204 411 238 410 88216 - - 410 813 411 172 411 205 411 239 410 88320 - - 410 814 411 173 411 206 411 240 410 88425 - - 410 815 411 174 411 207 411 241 410 88532 - - 410 816 411 175 411 208 411 242 410 88640 - - 410 817 411 176 411 209 - -50 - - - 411 177 411 210 - -63 - - - 411 178 411 211 - -DX 3 lexic MCBs, rcds and rcbos163

B r e a k i n g a n d p r o t e c t i o n d e v i c e s4 021 55 4 021 90 4 023 38 4 020 25DX-E mcbsNominalrating (A)B curveRX 3 mcbs and RCDsMCBs DX-E 6 000 - 6kAMCBs RX 3 6 000 - 6kAC curve1P 2P 3P 4P 1P 2P 3P 4P6 032 66 033 08 033 22 033 68 033 82 034 29 034 47 034 8910 032 68 033 10 033 24 033 70 033 84 034 31 034 49 034 9113 032 69 033 11 033 25 033 71 033 85 034 32 034 50 034 9216 032 70 033 12 033 26 033 72 033 86 034 33 034 51 034 9320 032 71 033 13 033 27 033 73 033 87 034 34 034 52 034 9425 032 72 033 14 033 28 033 74 033 88 034 35 034 53 034 9532 032 73 033 15 033 29 033 75 033 89 034 36 034 54 034 9640 032 74 033 16 033 30 033 76 033 90 034 37 034 55 034 9750 032 75 033 17 033 31 033 77 033 91 034 38 034 56 034 9863 032 76 033 18 033 32 033 78 033 92 034 39 034 57 034 99NominalB curveC curverating (A) 1P 2P 3P 4P 1P 2P 3P 4P3 4 022 69 4 022 79 4 022 89 4 022 99 4 023 09 4 023 20 4 023 31 4 023 426 4 022 70 4 022 80 4 022 90 4 023 00 4 023 10 4 023 21 4 023 32 4 023 4310 4 022 71 4 022 81 4 022 91 4 023 01 4 023 11 4 023 22 4 023 33 4 023 4413 - - - - 4 023 12 4 023 23 4 023 34 4 023 4516 4 022 72 4 022 82 4 022 92 4 023 02 4 023 13 4 023 24 4 023 35 4 023 4620 4 022 73 4 022 83 4 022 93 4 023 03 4 023 14 4 023 25 4 023 36 4 023 4725 4 022 74 4 022 84 4 022 94 4 023 04 4 023 15 4 023 26 4 023 37 4 023 4832 4 022 75 4 022 85 4 022 95 4 023 05 4 023 16 4 023 27 4 023 38 4 023 4940 4 022 76 4 022 86 4 022 96 4 023 06 4 023 17 4 023 28 4 023 39 4 023 5050 4 022 77 4 022 87 4 022 97 4 023 07 4 023 18 4 023 29 4 023 40 4 023 5163 4 022 78 4 022 88 4 022 98 4 023 08 4 023 19 4 023 30 4 023 41 4 023 52mcbs DX-E / RX 3 mcbs and RCDs164Sensitivity30 mA100 mA300 mAIn (A)2-pole - 230 V ACAC typeRCDs RX 34-pole - 400 V ACNeutral onright‐hand side2-pole - 230 V ACA type4-pole - 400 V ACNeutral onright‐hand side25 4 020 24 6021 46 4 020 36 -40 4 020 25 6021 47 4 020 37 6021 9463 4 020 26 - 4 020 38 6021 9580 4 020 27 - - -25 4 020 28 6021 49 - -40 4 020 29 6021 50 - -63 4 020 30 - - -25 4 020 32 - - -40 4 020 33 6021 52 - -63 4 020 34 6021 53 - -

266 70 255 98 225 15DPX-IS and VISTOP isolating switchesDPX-IS isolating switchesModelDPX-IS 250DPX-IS 630DPX-IS 1600In (A)Front handleWith releaseRight-hand sidehandleLeft-hand sidehandleFront handleWithout releaseRight-hand sidehandleLeft-hand sidehandle3P 4P 3P 4P 3P 4P 3P 4P 3P 4P 3P 4P63 266 30 266 34 266 40 266 44 266 50 266 54100 266 31 266 35 266 41 266 45 266 51 266 55160 266 32 266 36 266 42 266 46 266 52 266 56 266 02 266 06 266 12 266 16 266 22 266 26250 266 33 266 37 266 43 266 47 266 53 266 57 266 03 266 07 266 13 266 17 266 23 266 27400 266 72 266 74 266 76 266 78 266 80 266 82 266 60 266 62 266 64 266 66 266 68 266 70630 266 73 266 75 266 77 266 79 266 81 266 83 266 61 266 63 266 65 266 67 266 69 266 71800 265 91 265 951000 265 92 265 961250 265 93 265 971600 265 94 265 98MountingIn (A)Vistop isolating switchesFront handle Side handle Auxiliary contact2 P 3 P 4 P 2 P 3 P 4 Pfor on/offsignallingOn faceplate 32 224 98 225 00 225 02 225 03 225 05 225 0763 225 12 225 15 225 16 225 18On faceplateor rail 2100125225 20225 34225 22225 39225 25225 44225 27225 46160 225 51 225 53 225 54 225 56227 07AccessoriesDPX-IS 250 DPX-IS 630 DPX -IS 1600 Vistop 63 to 160 Afront and right-handDirect handle for266 89 266 89sideemergency useleft-hand side 266 90 266 90Vari-depth handlefor standard handle 266 86 266 86 265 89for emergency handle 266 87 266 87 265 90Front external handle 227 32Palock Ronis 266 92 266 97Euro locks 262 92Locking accessories forProfalux 262 93vari-depth handleRonis 262 94Terminal shields2P262 64262 87 262 453P 262 65Insulation shields 262 66DPX-IS and VISTOP isolating switches165

B r e a k i n g a n d p r o t e c t i o n d e v i c e s215 36216 01133 08 153 96SP fuse carriers and cylindrical Cartridge fusesSP fuse carriers1P 2P 3P3P + equippedneutral3P with changeovermicro-switchSP 51 for HRC fuses 14 x 51 215 01 215 03 215 04 215 05 215 36SP 58 for HRC fuses 22 x 58 216 01 216 04 216 05 216 36Link handle (300 mm) 216 96HRC cylindrical cartridge fuses type gGRating(A)Size10 x 38 14 x 51 22 x 58Without indicator With indicator Without indicator With indicator Without indicator With indicator0.5 133 941 133 012 133 02 134 02SP fuse carriers and cylindrical Cartridge fuses1663 133 03 134 034 133 04 134 046 133 06 134 06 143 068 133 08 134 0810 133 10 134 10 143 1016 133 16 134 16 143 16 145 16 153 1620 133 20 134 20 143 20 145 20 153 2025 133 25 134 25 143 25 145 25 153 2532 143 32 145 32 153 3240 143 40 145 40 153 4050 143 50 145 50 153 50 155 5063 153 63 155 6380 153 80 155 80100 153 96 155 96125 153 97 (1) 155 97 (1)(1) Overrating described by standards

120 04 130 08 140 12 151 50Cylindrical cartridges fuse type aMRating(A)8.5 x 31.5 10 x 38 HRC 14 x 51 HRC 22 x 58 HRCSizeWithout indicator Without indicator Without indicator With indicator Without indicator With indicator0.5 130 951 130 012 130 02 141 024 120 04 130 04 141 046 120 06 130 06 141 068 120 08 130 08 141 0810 120 10 130 10 140 10 141 1012 130 12 140 12 141 1216 130 16 140 16 141 1620 130 20 (2) 140 20 141 2025 130 25 (2) 140 25 141 25 150 25 151 2532 140 32 141 32 150 32 151 3240 140 40 141 40 150 40 151 4050 140 50 (1) 141 50 (1) 150 50 151 5063 150 63 151 6380 150 80 151 80100 150 96 151 96125 150 97 151 97(1) Overrating described by standards(2) Overrating not described by standardsSP fuse carriers and cylindrical Cartridge fuses167

B r e a k i n g a n d p r o t e c t i o n d e v i c e s6052 18 6052 04 6052 13 6051 13 + 6051 22Base, SPX and blade type cartridge fusesBases for blade type cartridge fusesSize 00 - 100 A 00 - 160 A 0 - 160 A 1 - 250 A 2 - 400 A 3 - 630 A 4 - 1250 AMounting 2 rail screw screw or 2 rail screwSingle pole base 160 01 162 00 170 00 175 00Single pole with micro-switch 165 02 170 02 181 02 185 02Triple pole 160 05 162 04 165 03 170 03 175 03Separation dividers 199 09 (1) 199 15 199 16 199 17 199 18 199 19Terminal shields 199 20 199 21 199 22 199 23Handle 199 02(1) for Cat.Nos 160 01 and 162 00SPX, SPX-V and SPX-DCartridge size 000 00 1 2 3Nominal current (A) 125 160 250 400 630Base, SPX and blade type cartridge fuses168SPX fusecarriersSPX-V fusecarriersSPX-D isolatingswichesMounting on plate 6052 00 6052 02 6052 04 6052 06 6052 08Mounting on collector rail 6052 01 6052 03 6052 05 6052 07 6052 09Distance betweencollector rails60 mm 6052 14100 mm 6052 10185 mm 6052 11 6052 12 6052 133P 6051 00 6051 01 6051 02 6051 03P+N 6051 10 6051 11 6051 12 6051 13SPX and SPX-V cage terminalsFlat terminals Prism terminals ExtensionconnectorSPX sizeCross sectionCross sectionTerminalsCat.Nos conductor Flexible rail Cat.Nos conductor Flexible railwith 3 shields(mm 2 ) (mm)(mm 2 ) (mm)inputs00 6052 18 1.5-70 12 x 10 6052 22 16-70 12 x 18 6052 26 6052 31/49(1)1 6052 19 70-150 18 x 7-18 6052 23 70-150 18 x 10 6052 322 6052 20 120-240 21 x 5-19 6052 24 120-240 21 x 15 6052 333 6052 21 150-300 25 x 7-20 6052 25 150-300 25 x 20 6052 34

6052 18 6052 23 6052 26 6052 79 6052 69 6052 30 6052 36 6052 62 6052 46Connection terminals to feed the barsPrism terminals for longitudinal feedCat.NosCross sectionConductor (mm 2 )bar (mm)6052 78 70-150 15 x 56052 79 120-240 20 x 56052 80 150-300 25 x 5Flat terminals for flat barsCat.Nos Size (mm) Bar thickness (mm) In (A)6052 68 25 x 20 20 2506052 69 30 x 20 20 4006052 73 35 x 20 20 6006052 74 50 x 32 30 6006052 75 63 x 40 30 8006052 76 63 x 50 30 10006052 77 80 x 60 30 1250Universal terminals to feed the barsCat.Nos Conductor (mm 2 ) Bar thickness (mm) In (A)6052 63 1.5-1.6 5 1806052 64 4-35 5 2706052 65 16-70 10 4006052 66 16-120 10 440AccessoriesCat.NosSPXSPX-V000 00 1 2 3 00 1 2 3Signalling contact : 5 A - 250 V AC ; 4A - 30 V DC 6052 30 * * * * * * * * *6052 35 *Lockable face plate for 4 to 7 mm padlock6052 36 *6052 37 * * *Kit for fixing SPX on TH35 for 1 isolator 6052 45 *Isolating support for flat copper rail60 mm phase offset 6052 46 * * * * * *185 mm phase offset 6052 62 * * * *Collector rail adaptator for1 x 160 A 6052 50(1) *installation or SPX 00 on a 185 mmcollector rail system2 x 160 A 6052 51(1) *Accessories for SPX-DSPX-D160 A 250 A 400 A 630 ADirect handle 6051 20 6051 21 6051 21 6051 22External handle 6051 23 6051 24 6051 24 6051 25Extended shafts for external handle 6051 28 6051 29 6051 29 6051 30Auxiliary contacts 2NO + 2NC 6051 26 6051 27 6051 27 6051 27Terminal shields 6051 32 6051 32 6051 33Base, SPX and blade type cartridge fuses169

B r e a k i n g a n d p r o t e c t i o n d e v i c e s168 35 178 65185 80 166 55Rating(A)25 163 1832 163 2035 163 2240 163 2550 163 30Size00 0 1 2 3 4Voyant With indicator With indicator With indicator With indicator With striker63 163 35 168 3580 163 40 168 40100 163 45 168 45HRC blade type cartridge fuses type gG/gL125 163 50 168 50 173 50160 163 55 168 55 173 55200 168 60 (1) 173 60 178 60250 173 65 178 65315 178 70400 178 75500 181 25630 181 30 185 80800 185 851000 185 901250 185 95 (1)HRC blade type cartridge fuses type aMSizeBase, SPX and blade type cartridge fusesRating (A) Taille 00 Taille 0 Taille 1 Taille 2 Taille 3 Taille 4With indicator With striker With striker With striker With striker With striker63 160 35 166 3580 160 40 166 40100 160 45 166 45125 160 50 (1) 166 50 171 50160 166 55 171 55200 171 60 176 60250 171 65 176 65315 176 70400 176 75500 180 75630 180 80 184 80800 184 851000 184 90(1) Overrating not described by standards170