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General informationContactsThere are several different types of contact materials for relays.The main distinction can be made between single contacts and twin contacts.While single contacts are more suitable for higher loads, twin contacts are significantlymore reliable for low switching loads, i.e. < 24V, < 100mA.Contact materialThere is no all-purpose universal contact.AgNi is used as a standard contact material for a wide range of applications.For applications in aggressive atmospheres, AgNi contacts with hard gold plating(up to 10µm) are recommended. There is however no other purpose then corrosionprotection during storage. Relays with tungsten pre-contacts are availablefor very high switching currents (up to 500A, 2.5ms.Minimum loadThe minimum load values are recommended values under normal workingconditions i.e. regular switching, no special ambient conditions, etc.Under these conditions reliable switching can be expected.Contact resistanceIn practice the contact resistance may vary depending on the switching load andother environmental conditions.For higher currents the contact resistance is around 10mΩ.Contact spacingNormally all open contacts have an air gap between 0,5...1.5mm.They are referred to as µ contacts according to the Low-Voltage Directives andassociated standards. These contacts are not suitable for safe disconnection.For switching of DC loads, large contact clearances are requested for the quenchingof the electric arcs. (Pls.refer to special relays: Series connections.)Switching capacityThe contact switching capacity is the product of switching voltage and switchingcurrent.For AC, the permitted switching capacity is generally enough to handle the max.continuous AC1 current over the whole voltage range.It is not allowed to exceed the load limit curve for DC switching because a remainingswitch-off-arc would destroy the relay immediately. The DC switchingcapacity is 100W (DC 1).Drive (coil)A distinction is made between standardised voltages according to EN 60947as guaranteed values, and typical values which can be expected with a highdegree of probability.Pick-up voltage, Release voltageThe pick-up voltage is the voltage at which the relay engages safely. The typicaltrip voltage for DC is approx. 65% of Unom and approx. 75% of Unomfor AC.The release voltage is approx. 25%, resp. 60% of Unom.For DC, these voltages depend strongly on the temperature coefficient for Cu.This is however not the case for AC, where the constant inductive resistance overa wide temperature range is the controlling factor.Under voltages in AC relays results in humming and armature fluttering andshould therefore be avoided.Operating voltage rangeThe upper voltage limit of the coil is determined by the heat and the ambienttemperature.The self-heating trough the contacts under high loads should not be underestimatedsince it may even be higher than the dissipated energy of the coil.Significantly high but short period overvoltage however provides no problem forintermittent operations.In doubt please consult our specialist or ask for the respective characteristiccurve diagram.Coil connectionsDifferent coil connections can be integrated into the relay as an option. A costeffectivefreewheeling diode is available for DC coils. Please note that the statedrelease times are generally specified without the coil connection.While an additional LED status indicator has practically no effect, a freewheelingdiode (D) will lead to an increase in release time by a factor 2 to 5, or 0ms to 30ms.For AC coils, VDRs or RC elements may be used. In this case resonance effectsmay have to be considered. VDRs and common RC elements may increaserelease times by < 5ms.General designComat (Releco) relays are made from carefully selected high-quality materials.The components comply with the latest environmental regulations suchas RohS.The meticulous design makes the relays particularly suitable for any industrialapplication and engineering installation.The robust terminals, mechanical position indicator, dynamic and permanenthand activators, all integrated in the standard relay make them particularlyservice friendly.Colour coded hand test buttons dependent on the type of coil voltage is anotheruseful feature.Options- Different coil connections- Freewheeling diodes- LED displays- Bridge rectifiers for AC/DC drives, etc.Additionally, because of short-term availability of special versions for practicallyany drive voltage up to DC 220V/AC 400V the relays are a cost effective solutionfor many applications For safety reasons, manual operated test buttons may bereplaced with a blank button, if required.Further informationTo select the most suitable relay and to guarantee a reliable operation and along service life for the application, several factors need to be considered. Inparticular these are:-Number of cycles-Switching frequency-Ambient conditions-Load type-Switch-on current and load switch-off energy.ExampleIf the number of cycles are expected to exceed > 100,000 operations peryear. (E.g. clock generators, fast running machines), an electronic solutionis perhaps more appropriate. Comat is able to offer a suitable relay from ourstandard product range.In AC applications, crosstalk caused by long control leads is often a problemand can result in constant humming of the relay or even inadvertent triggeringdue to interference. Here too, we offer solutions.Various, apparently harmless loads may lead to very high switch-on currentsor switch-off energy values This may result in an unacceptable reduction of theservice life. Inductive DC loads are especially harmful.Characteristics of various loads:Heating circuitsNo high switch-on currents, no high switch-off loads.Incandescent lamps, halogen lampsSwitch-on currents during a few ms in the range 10 x rated IN. Switch-off atrated load.Low-energy lampsVery high, with very short switch-on currents due to built-in decoupling capacitors.Contacts have a tendency to fuse.Transformers, AC contactorsSwitching on during zero-transition may avoid high inrush currents. If switchingbefore or after the zero crossing, switch-on currents of 8...15 x rated IN.mayoccur. High inductive switch-off energy is possible. The load must be wired,due to EMC problems.Comat products comply withdifferent international standardsand are certified accordingly.A detailed list can be found onour web page:www.comat.ch8 KAT2008This edition replaces all previous issues.Availability, errors and specifi cation subject to change without notice.COMAT AG • BERNSTRASSE 4 • CH-3076 WORB • SCHWEIZ www.comat.chTel. +41 (0)31 838 55 77 • Fax. +41 (0)31 838 55 99 • info@comat.ch
Industrial RelaysInterface RelaysIndustrial Relays1Interface RelaysRecommended application10 A8A6A5A2A100Apeak100Apeak300mA50mA10 mA5mA1mATriacSolid-State&121+1C14-A10 CINT11 C10-T13 C10-T12 CINT12 CINT18 CINT15C10-A14 CINT21 CINT22 CINT28 CINT25CINT51 CINT52 CINT53 C12-A21CINT61 CINT62 CINT63 C12-A22twin contactsCHA1COMAT AG • BERNSTRASSE 4 • CH-3076 WORB • SCHWEIZ www.comat.chTel. +41 (0)31 838 55 77 • Fax. +41 (0)31 838 55 99 • info@comat.chThis edition replaces all previous issues.Availability, errors and specifi cation subject to change without notice.9 KAT2008
Page 1 and 2: Comat Control ComponentsThe compreh
Page 3 and 4: Index Page 3Industrial Relays / Min
Page 5 and 6: IndexIndustrial Relays Time Delay R
Page 7 and 8: Industrial RelaysIndustrial Relays1
Page 9: Industrial relaysOutline OverviewDI
Page 13 and 14: CINT5CINT6InterfaceDINInterface Mod
Page 15 and 16: C14/C10InterfaceC14: 31C10: 35,5WH:
Page 17 and 18: Industrial RelaysMiniature RelaysIn
Page 19 and 20: CR31MiniatureNCNOCOM3-poleMiniature
Page 21 and 22: KRMiniatureSignal Relay Signal Rela
Page 23 and 24: Industrial RelaysStandard RelaysInd
Page 25 and 26: C3Standard11Power RelayAC230VAContr
Page 27 and 28: C5StandardHigh Power Relay for AC a
Page 29 and 30: Industrial RelaysLong Life RelaysIn
Page 31 and 32: C30Long Life11Power Relay12 3 45LOC
Page 33 and 34: Industrial RelaysTime Cubes andRela
Page 35 and 36: R-ModuleSupplementaryproducts11Plug
Page 37 and 38: Industrial RelaysDIN RelaysIndustri
Page 39 and 40: C100...300DIN InterfaceDINPower Rel
Page 41 and 42: Industrial RelaysSolide-State Relay
Page 43 and 44: KASolid-StateAC Solid-StateRelay1xA
Page 45 and 46: KDM3-24Solid-StateDC-Motor Control
Page 47 and 48: CTV, C300Solid-StateDINSolid-State
Page 49 and 50: Industrial RelaysMiniature Contacto
Page 51 and 52: SOC-2 DINMiniature ContactorInnstal
Page 53 and 54: Time Delay RelaysTime Delay Relays2
Page 55 and 56: Plug-in Time Cubes andTime Modules
Page 57 and 58: Time Delay RelaysPlug-in Time Delay
Page 59 and 60: Time Delay RelaysDIN Time Delay Rel
Page 61 and 62:
Time Delay RelaysPlug-in Time Cubes
Page 63 and 64:
CT2/CT3Time Cubes811Plug-in Time Cu
Page 65 and 66:
CT-System11Time Delay Relay assembl
Page 67 and 68:
Time Delay RelaysPlug-in Time Delay
Page 69 and 70:
C80Multifunctional Time Delay Relay
Page 71 and 72:
C6411C65, C6611Restart Delay RelayN
Page 73 and 74:
DISPLAYS INPUTR OUTPUTt RESETt STOP
Page 75 and 76:
Time Delay RelaysPlug-in Time Delay
Page 77 and 78:
RS12211Repeat Cycle Timerand othere
Page 79 and 80:
CPX, CTICEA11Plug-in Time Delay Rel
Page 81 and 82:
CEA, CWR11Plug-in Time Delay RelayT
Page 83 and 84:
Time delay RelaysDIN Time Delay Rel
Page 85 and 86:
CRV, CSVCRTDINMultifunctional Time
Page 87 and 88:
XXXX CMDINMultifunctional Time Dela
Page 89 and 90:
3XXXX ECODINMultifunctional Time De
Page 91 and 92:
Time Delay RelaysSpecially Time Del
Page 93 and 94:
CUUniversal Timer ModuleTime Delay
Page 95 and 96:
SBV11Amplifier RelaysKK70 806090UB
Page 97 and 98:
CCX11Preset CountersTime Delay Rela
Page 99 and 100:
Time Delay RelaysSockets and Access
Page 101 and 102:
SocketsSocket accessories and dimen
Page 103 and 104:
AccessoriesAccessories pour Time De
Page 105 and 106:
Installation RelaysInstallation Rel
Page 107 and 108:
Installation RelaysStep-on Step-off
Page 109 and 110:
Power RelaysPower RelaysB103, A333D
Page 111 and 112:
AL4 ... AL5DINStaircase Lighting Ti
Page 113 and 114:
Monitoring RelaysMonitoring Relays4
Page 115 and 116:
Monitoring RelaysVoltage Monitoring
Page 117 and 118:
3VOvervoltage and Undervoltage Moni
Page 119 and 120:
VVVoltage Monitoring AC or DCCUEBUa
Page 121 and 122:
Monitoring RelaysCurrent Monitoring
Page 123 and 124:
and otheres:www.comat.chACurrent Mo
Page 125 and 126:
and otheres:www.comat.chADC Current
Page 127 and 128:
Monitoring RelaysMains MonitoringMo
Page 129 and 130:
and otheres:www.comat.ch3Three-phas
Page 131 and 132:
Monitoring RelaysIsolation Monitori
Page 133 and 134:
Monitoring RelaysThermo Protection
Page 135 and 136:
SMS Relay / Comat BoxXSMS Relay / C
Page 137 and 138:
Automation ProductsSMS RelaysSMS Re
Page 139 and 140:
SMS RelayConfiguration softwareCMS-
Page 141 and 142:
Automation ProductThe speakingcontr
Page 143 and 144:
BoxXThe ApplicationThe Comat BoxX c
Page 145 and 146:
PCEXT SPKWAVBoxXThe Extensionmodule
Page 147 and 148:
Comat worldwideAUSTRALIAOHMIC CONTR
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