Safety Relays ESM - EUCHNER GmbH + Co. KG

Internationally successful – the EUCHNER companyHeadquarters in Leinfelden-EchterdingenEUCHNER GmbH + Co. KG is a world-leading company in the area of industrial safetytechnology. EUCHNER has been developing and producing high-quality switching systemsfor mechanical and systems engineering for more than 50 years.The medium-sized family-operated company based in Leinfelden, Germany, employsmore than 500 people around the world, 400 in Germany alone.In addition to the production locations in Unterböhringen and Shanghai/China, 14 subsidiariesand other sales partners in Germany and abroad work for our internationalsuccess on the market.Quality and innovation – the EUCHNER productsLogistics center in Leinfelden-EchterdingenA look into the past shows EUCHNER to be a company with a great inventive spirit.We take the technological and ecological challenges of the future as an incentive forextraordinary product developments.EUCHNER safety switches monitor safety doors on machines and installations, help tominimize dangers and risks and thereby reliably protect people and processes. Today,our products range from electromechanical and electronic components to intelligentintegrated safety solutions. Safety for people, machines and products is one of ourdominant themes.Production location in UnterböhringenmadeinGermanyWe defi ne future safety technology with the highest quality standards and reliabletechnology. Extraordinary solutions ensure the great satisfaction of our customers.The product ranges are subdivided as follows:Transponder-coded Safety Switches (CES)Transponder-coded Safety Switches with guard locking (CET)Interlocking and guard locking systems (Multifunctional Gate Box MGB)Access management systems (Electronic-Key-System EKS)Electromechanical Safety SwitchesMagnetically coded Safety Switches (CMS)Enabling SwitchesSafety RelaysEmergency Stop DevicesHand-Held Pendant Stations and HandwheelsSafety Switches with AS-InterfaceJoystick SwitchesPosition Switches2

ContentsSafety Relays ESMGeneral information 4The ESM modular principle 4Approvals 4Explanation of symbols 4Safety relays ESM 7Safety relay ESM-BL.. and ESM-BA.. 8Safety relay time-delayed ESM-BT.. 12Safety relay 2-hand ESM-2H.. 13Contact expansion ESM-ES.. 14Contact expansion time-delayed ESM-TE.. 15Accessories 16Technical data 17Appendix 26Glossary 26Connection examples 26Item index 29110651-05-02/133

Safety Relays ESMGeneral informationFor machines and systems that can produce a risk for people when inoperation, the EU Machinery directive defines minimum requirements thatare intended to reduce to a minimum the specific hazards and the relatedrisks of accident.If all sources of danger cannot be eliminated by design measures, appropriateprotective measures must be taken. Using safety guards, suchas fences or similar, it is intended to prevent people entering the dangerarea. If users need to have access to the danger area during operation,movable safety guards such as safety doors, flaps, etc, are used. This isthe case, for example, for loading or unloading, troubleshooting, machinesetup or cleaning work.To safeguard this access area, safety switches with various principles ofoperation are used. These switches are designed to monitor the positionof the safety guard and, when the safety guard is opened, to generatea signal which will safely interrupt the supply of power to the potentiallyhazardous parts of the system or which will ensure that the safety circuitsare safely interrupted. The EUCHNER safety relays series ESM ensure thatthe safety circuits are interrupted. On the one hand they safely evaluatecomponents connected such asApprovalsTo demonstrate conformity, the Machinery Directive also includes thepossibility of type examination. Although all relevant standards are takeninto account during development, we have all our switchgear subjectedto additional type examinations by a notified body.Furthermore, numerous items of switchgear are listed by UnderwritersLaboratories (UL). These items of switchgear can be used in countries inwhich this listing is required. The approval symbols on the individual pagesof the catalog indicate which body tested the switchgear.With the aid of the approval symbols listed below you can quickly seewhich approvals are available for the related switchgear:Switches with this symbol are approved byUnderwriters Laboratories (UL)Switches with this symbol are approved byTÜV Rheinlandffffffffmechanical safety switches with and without guard locking,non-contact safety switches,emergency stop controlsnon-contact protective equipment, etc.Explanation of symbolsConnection optionswhile on the other hand they safely shut down potentially hazardousmachine functions.The safety relays impress with their compact DIN rail housing and theirsuitability for applications up to safety category 4/PLe in accordancewith EN ISO 13849‐1.STOPSuitable for the connectionof emergency stopSuitable for the connection of safetyswitches according to EN 1088The ESM modular principleThe majority of modules in the safety relay series ESM are installed in ahousing that is only 22.5 mm wide. Various safety relays are available towhich contact expansions can be added on the output side. The contactexpansions can be non-time-delay or time-delayed. The advantage of thismodular principle is that only a few devices are required to be able torealize a large number of different safety evaluations.The relays can be operated with various types of starting. The devicescan be started manually or automatically using suitable wiring. The manualstart can also monitor the start button.Using suitable wiring it is also possible to integrate a feedback loop suchthat safety-related parts of a machine or system downstream can alsobe monitored.In the ESM series the majority of the devices are available with a varietyof input voltage ranges.Fault detectionSuitable for the connection of non-contactprotective equipment, e. g. light curtainsSuitable for the connectionof 2-hand circuitsShort circuit is detectedGround fault is detectedEarth fault is detectedTime-delaySafety contacts switch time-delayed4Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

Safety Relays ESMSafety categoryCat.3Suitable up to category 3 according toEN ISO 13849‐1Cat.4Suitable up to category 4 according toEN ISO 13849‐1Stop categorySTOP0Immediate shutdownStop category 0 according to EN 60204-1STOP1Time-delayed shutdownStop category 1 according to EN 60204-1Technical dataMechanical dataElectrical dataSubject to technical modifications; no responsibility is accepted for the accuracy of this information.5

Safety Relays ESM6Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

Safety relay ESMSelection table for safety relays ESMSafety relaysBL Non-time-delay category 3BA Non-time-delay category 4BT Time-delay category 3/non-time delay category 42H 2-hand requirement level IIIC according to EN 574, category 4Contact expansionES Non-time-delay category 4TE Time-delay category 4Category according to EN ISO 13849‐1K Category according to EN ISO 13849‐1Enable pathSUSVMSafety contacts non-time-delaySafety contacts time-delayMonitored Start buttonRelay startAMUAutomatic startStart buttonMonitored Start buttonMonitoringRQEMFeedback loopShort circuitmonitoringEarth faultmonitoringGround faultmonitoringDevices Outputs Start MonitoringPageBL BA BT 2H ES TE K SU SV M A M U R Q E M● 3 2 ● ● ● 8● 4 2 ● ● ● ● ● ● ● 9● 4 3 1 ● ● ● ● ● ● ● 10● 4 7 4 ● ● ● ● ● ● ● 11● 4/3 1 3 ● ● ● ● ● ● ● 12● 4/3 2 2 ● ● ● ● ● ● ● 12● 4/3 3 1 ● ● ● ● ● ● ● 12● 4 2 ● ● ● ● ● 13● 4 3 1 ● ● 14● 3 3 1 ● ● 157

Safety Relays ESMSafety relays ESM‐BL.. and ESM‐BA..ffESM‐BL.. Usage up to category 3according to EN ISO 13849‐1ffESM‐BA.. Usage up to category 4according to EN ISO 13849‐1ffLED status indicatorsff1-channel or 2-channel controlffUp to 7 redundant safety contactsffAuxiliary contact (signaling contact)optionalffShort circuit and earth fault/groundfault monitoring optionalSafety relay ESM‐BL..STOPDimension drawingSuitable for 35 mm DIN railto DIN EN 60715 TH 35Cat.3STOP0A1 13 23 S219913 23K1K214 24ESM-BL2S11 14 24 A2Relay outputsThe outputs are electrically decoupled and ofredundant design.Connection optionsBy using suitable wiring the following functionscan be selected:ffRelay start with automatic start or a startbuttonffMonitoring of downstream relays or contactorsOn the series ESM‐BA.. safety relays, by usingsuitable wiring it is also possible to select:ffSimultaneity monitoring to monitor safetycomponents over timeffShort circuit monitoring to detect short circuitsbetween the connection cables and to shutdown the outputs or prevent relay starting ifnecessaryffEarth fault/ground fault monitoring to detectshort circuits between the connection cablesand earth or ground and to shut down theoutputs or prevent relay starting if necessary.Auxiliary contactsThe relays in the series ESM‐BA3.. and ESM‐BA7...are available with electrically separate normallyclosed contacts and auxiliary contacts.Connection terminalsOptionally the ESM‐BA... devices are also availableas version with plug-in connection terminals.Block diagramTechnical data outputsParameterMin. switching current at DC 24 VSwitching voltage max.Utilization category *According to EN 60947-5-122,5 114A1 A2~ - -PowersupplyS21 S11StartInputsU e = switching voltageI e = max. switching current per contactΣ I e = max. switching current on all safety contacts (cumulative current)* See page 26 for information about the utilization categoryK1K213142324Value20 mADC 24 V / AC 250 VU e I e Σ I eAC-12 250 V 6 AAC-15 230 V 4 A12 ADC-12 24 V 1.25 ADC-13 24 V 2 AOrdering tableSeries Version Outputs AC/DC 24 V AC 115 V AC 230 VESMBLSafety relay22 NO085607ESM‐BL201085608ESM‐BL202085609ESM‐BL2038Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

Safety Relays ESMSafety relay ESM‐BA2..STOPCat.4STOP0Dimension drawingESM‐BA2...Suitable for 35 mm DIN railto DIN EN 60715 TH 35ESM‐BA201PPlug-in connection terminalsplease order separately13 23A1 S11 S14 S2113 23A1 S11 S14 S219913 23K1K214 249913 23K1K214 24K2ESM-BA2S12 S13 S10 A214 24K1ESM-BA2S12 S13 S10 A214 2422,511422,5Block diagramA1 A2S21 S10 S11 S12 S13 S141323~ - -StartInputsK1PowersupplyK21424Technical data outputsParameterMin. switching current at DC 24 VSwitching voltage max.Utilization category *According to EN 60947-5-1U e = switching voltageI e = max. switching current per contactΣ I e = max. switching current on all safety contacts (cumulative current)* See page 26 for information about the utilization categoryValue20 mADC 24 V / AC 250 VU e I e Σ I eAC-12 250 V 6 AAC-15 230 V 4 A12 ADC-12 24 V 1.25 ADC-13 24 V 2 AOrdering tableSeries Version Outputs Version AC/DC 24 V AC 115 V AC 230 VESMBASafety relay1) Please order plug-in connection terminals separately (see page 16)22 NO085610Screw terminalsESM‐BA201Plug-in097226connection terminals 1) ESM‐BA201P085611ESM‐BA202085612ESM‐BA203- -For technical data see page 17Subject to technical modifications; no responsibility is accepted for the accuracy of this information.9

Safety Relays ESMSafety relay ESM‐BA3..STOPCat.4STOP0Dimension drawingESM‐BA3...Suitable for 35 mm DIN railto DIN EN 60715 TH 35Plug-in connection terminalsplease order separatelyESM‐BA301P13 23 33 41A1 S11 S14 S2113 23 33 41A1 S11 S14 S219913 23 33 41K1K214 24 34 429913 23 33 41K1K214 24 34 42K2ESM-BA3S12 S13 S10 A214 24 34 42K1ESM-BA3S12 S13 S10 A214 24 34 4222,511422,5 114Block diagramA1 A2S21 S10 S11 S12 S13 S14 13 23 33 41~ - -StartInputsK1PowersupplyK214243442Technical data outputsParameterMin. switching current at DC 24 VSwitching voltage max.Utilization category *According to EN 60947-5-1Value5 mADC 24 V / AC 250 VU e I e Σ I eAC-12 250 V 8 AAC-15 250 V 3 ADC-12 50 V 8 A15 A 1)DC-13 24 V 3 A1) If several ESM‐BA3.. are closely spaced under load, the max. cumulative current at an ambient temperature of 20 °C = 9 A; at 30 °C = 3 A; at 40 °C = 1 A. If these currents are exceeded, aspacing of 5 mm between the devices must be observed.U e = switching voltageI e = max. switching current per contactΣ I e = max. switching current on all safety contacts (cumulative current)* See page 26 for information about the utilization categoryOrdering tableSeries Version Outputs Version AC/DC 24 V AC 115 V AC 230 VESMBASafety relay1) Please order plug-in connection terminals separately (see page 16)33 NO + 1 NC085613Screw terminalsESM‐BA301Plug-in097230connection terminals 1) ESM‐BA301P087412ESM‐BA302087413ESM‐BA303- -10Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

Safety Relays ESMSafety relay ESM‐BA7..STOPCat.4STOP0Dimension drawingPlug-in connection terminalsplease order separately13 23 33 81S21 S11 S14 9143 53 63 73101 O1 O2 A19913 23 33 81 91 43 53 6373101K1K214 24 34 82 92 44 546474 102 112PwrK1K2S12 S13 S10 9214 24 34 82ESM-BA701102 112 0V A244 54 64 7445 114Suitable for 35 mm DIN railto DIN EN 60715 TH 35Block diagramA1 A2S21 S10 S11 S12 S13 S14 13 23 33819143536373101~ - -StartInputsK1PowersupplyMonitoringoutputsK20VO1O2142434 829244546474 102 112Technical data outputsParameterMin. switching current at DC 24 VSwitching voltage max.Utilization category *According to EN 60947-5-11) With a housing distance of 10 mm. 20 A closely spaced at 40 °CValue5 mADC 50 V / AC 250 VU e I e Σ I eAC-12 250 V 8 AAC-15 250 V 3 ADC-12 50 V 8 A35 A 1)DC-13 24 V 3 AU e = switching voltageI e = max. switching current per contactΣ I e = max. switching current on all safety contacts (cumulative current)* See page 26 for information about the utilization categoryOrdering tableSeries Version Outputs Version AC/DC 24 V AC 115 V AC 230 VESMBASafety relay77 NO + 4 NCPlug-inconnection terminals 1) 097225ESM‐BA701P1) Please order plug-in connection terminals separately (see page 16). Two connection kits are required for devices from series ESM‐BA701P.- -For technical data see page 17Subject to technical modifications; no responsibility is accepted for the accuracy of this information.11

Safety Relays ESMSafety relays ESM‐2H..ffUsage up to category 4 accordingto EN ISO 13849-1ffRequirement level IIIC accordingto EN 574ffLED status indicatorsffOperation using 2-hand controlff2 redundant safety contactsffShort-circuit and earth fault/groundfault monitoring can be selectedSafety relay ESM‐2H..Dimension drawingSuitable for 35 mm DIN railto DIN EN 60715 TH 35Cat.4STOP0X1 X2 13 23A1 S11 S12 S139913 23K1K214 24ESM-2H2S21 S22 S23 A214 24Relay outputsThe outputs are electrically decoupled and ofredundant design.ConnectionffTwo buttons each with one normally closedcontact and one normally open contact thatare monitored for simultaneity according toEN 574. In this way a high level of protectionagainst tampering is provided.ffShort circuit monitoring to detect short circuitsbetween the connection cables and to shutdown the outputs or prevent relay starting ifnecessary.ffEarth fault/ground fault monitoring to detectshort circuits between the connection cablesand earth or ground and to shut down theoutputs or prevent relay starting if necessary.Block diagram22,5 114A1 A2~ - -PowersupplyS11 S12 S13 S21 S22 S23X1Channel 1 Channel 2InputsFeedbackloopX2K1K213142324Connection optionBy using suitable wiring the following functioncan be selected:ffMonitoring of downstream relays or contactorsTechnical data outputsParameterMin. switching current at DC 24 VSwitching voltage max.Utilization category *According to EN 60947-5-1U e = switching voltageI e = max. switching current per contactΣ I e = max. switching current on all safety contacts (cumulative current)* See page 26 for information about the utilization categoryValue20 mADC 24 V / AC 250 VU e I e Σ I eAC-12 250 V 6 AAC-15 230 V 4 A8.4 ADC-12 24 V 1.25 ADC-13 24 V 2 AOrdering tableSeries Version Outputs AC/DC 24 V AC 115 V AC 230 VESM2HSafety relay22 NO085620ESM‐2H201098345ESM‐2H202-For technical data see page 17Subject to technical modifications; no responsibility is accepted for the accuracy of this information.13

Safety Relays ESMContact expansion ESM‐ES..ffUsage up to category 4 according toEN ISO 13849-1ffLED status indicatorsffControl using safety relaysff3 redundant safety contactsff1 door auxiliary contactffEarth fault/ground fault monitoring canbe selectedContact expansion ESM‐ES..Dimension drawingCat.4STOP0Suitable for 35 mm DIN railto DIN EN 60715 TH 3513 23 33A1 S11 S15 S169913 23 33 S23K1K214 24 34 S24ESM-ES3S23 S24 S10 A214 24 34Relay outputsThe outputs are electrically decoupled and ofredundant design.22,5 114Connection optionBy using suitable wiring the following functioncan be selected:ffEarth fault/ground fault monitoring to detectshort circuits between the connection cablesand earth or ground and to shut down theoutputs or prevent relay starting if necessary.Block diagramA1 A2~ - -S10 S11 S15 S16 S23 13 23 33Inputs K1PowersupplyK2S24142434Technical data outputsParameterMin. switching current at DC 24 VSwitching voltage max.Utilization category *According to EN 60947-5-1U e = switching voltageI e = max. switching current per contactΣ I e = max. switching current on all safety contacts (cumulative current)* See page 26 for information about the utilization categoryValue5 mADC 50 V / AC 250 VU e I e Σ I eAC-12 250 V 6 AAC-15 230 V 4 A10.5 ADC-12 24 V 1.25 ADC-13 24 V 2 AOrdering tableSeries Version Outputs AC/DC 24 V AC 115 V AC 230 VESMESContact expansion33 NO + 1 NC085614ESM‐ES301085615ESM‐ES302085616ESM‐ES30314Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

Safety Relays ESMContact expansion ESM‐ES..ffUsage up to category 3 according toEN ISO 13849-1ffLED status indicatorsffControl using safety relaysff3 redundant time-delayed safety contactsffTime-delay range between 1 s and 30 sffFixed time delay of 0.5 s optionalff1 auxiliary contactffEarth fault/ground fault monitoring canbe selectedContact expansion ESM‐ES..Dimension drawingSuitable for 35 mm DIN railto DIN EN 60715 TH 35Cat.3STOP117 27 37A1 S11 S15 S169917 27 37 S25K1K218 28 38 S26tESM-TE3S25 S26 S10 A218 28 38Relay outputsThe outputs are electrically decoupled and ofredundant design.22,5 114Connection optionBy using suitable wiring the following functioncan be selected:ffEarth fault/ground fault monitoring to detectshort circuits between the connection cablesand earth or ground and to shut down theoutputs or prevent relay starting if necessary.Block diagramA1 A2S10 S11 S15 S16 S25 17 27 37Inputs K1Time-delayed shutdownThe release time for the time-delay contacts canbe set as required using a potentiometer on thesafety relay.~ - -PowersupplyK2S26182838Technical data outputsParameterMin. switching current at DC 24 VSwitching voltage max.Utilization category *According to EN 60947-5-1U e = switching voltageI e = max. switching current per contactΣ I e = max. switching current on all safety contacts (cumulative current)* See page 26 for information about the utilization categoryValue5 mADC 50 V / AC 250 VU e I e Σ I eAC-12 250 V 6 AAC-15 250 V 4 A10.5 ADC-12 24 V 1.25 ADC-13 24 V 2 AOrdering tableSeries Version Outputs Time-delay AC/DC 24 V AC 115 V AC 230 VESMTEContact expansion33 NO + 1 NC timedelayedAdjustable1 s ... 30 sFixed0.5 s085617ESM‐TE301097223ESM‐TE301-05S085618ESM‐TE302085619ESM‐TE303- -For technical data see page 17Subject to technical modifications; no responsibility is accepted for the accuracy of this information.15

AccessoriesAccessories for Safety System ESMffConnection kit ESM...P with screw terminals or spring terminalsImportant: One connection kit is required, depending on the device (see information on the corresponding product page). Two connection kits arerequired for devices from series ESM-BA701P.Ordering tableDesignation Description Order No.Connection kitESM...Pwith screw terminalsConnection kitESM...Pwith spring terminalsComprising:4 plug-in screw terminals (can be coded)2 jumperscoding pinsComprising:4 plug-in spring terminals (can be coded)2 jumperscoding pins097194ESM-F-AK4097195ESM-F-KK416Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

Technical DataOverview safety relays ESMSafety relays ESMBL Non-time-delay category 3BA Non-time-delay category 4BT Time-delay category 3/non-time delay category 42H 2-hand requirement level IIIC according to EN 574, category 4Contact expansion ESMES Non-time-delay category 4TE Time-delay category 4Safety relay ESMPageBL BA BT 2H ES TE● 18● 19● 22● 23● 24● 2517

Technical Data Safety Relay ESMHousingParameter Value UnitHousing materialPolyamide PA6.6Dimensions 114 x 99 x 22.5 (ESM-BA7... 114 x 99 x 45) mmWeight Approx. 0.25 (ESM-BA7... approx. 0.35) kgConnectionConnection terminalsConnection terminals 0.14 … 2.5 mm 2Ambient temperature Base ESM-BL2.. ESM-BA2.. ESM-BA3.. ESM-BA7.. ESM-BT4.. ESM-2H2..at U B = 24 V DC -15 ... +60 -15 … +40 -15 … +40 -15 ... +60 °Cat U B = 115/230 V AC -15 ... +40 -15 ... +40 - -15 ... +40 °CContact expansionESM-ES3.. ESM-TE3…at U B = 24 V DC -15 … +60 °Cat U B = 115/230 V AC -15 ... +40 °CDegree of protection according to EN 60529 IP 20Degree of contamination 2Mounting DIN rail 35 mm according to DIN EN 60715 TH 35Life Base ESM-BL2.. ESM-BA2..ESM-BA3..ESM-BA7.. ESM-BT4.. ESM-2H2..Mechanical 1 x 10 7 1 x 10 6 1 x 10 6 1 x 10 7 operating cyclesElectrical 1 x 10 5 1 x 10 6 1 x 10 5 1 x 10 5 operating cyclesContact expansionESM-ES3.. ESM-TE3…Mechanical 1 x 10 7 operating cyclesElectrical 1 x 10 5 operating cyclesConnection ESM-BL2..Parameter Value UnitOperating voltage ESM-BL201 24 ± 10% 1) V AC/DCESM-BL202 115 ± 10% V ACESM-BL203 230 ± 10% V ACReverse polarity protectionOn ESM-BL201Rated supply frequency 50 ... 60 HzPower consumptionApprox. 3 VA / 1.8 WControl voltage for start button 18.6 … 26 V DCControl cable length (cross-section 0.75 mm²) Max. 1000 mControl current for start button Approx. 40 mAExternal contact fuse (safety circuit) acc. to EN IEC 60269-110 A gG (T4A / F6A)Test voltage (control voltage/contacts) 2.5 kVRated impulse withstand voltage,Leakage path and air gaps acc. to DIN VDE 0110-14 kVRated insulation voltage 250 VOver voltage category according to DIN VDE 0110-1 3Safety contacts2 NO contacts (redundant)Min. switching current at 24 V DC 20 mASwitching voltage max. 24 V DC250 V ACBreaking capacity acc. to6 A 250 V AC2 A 24 V DCUtilization category 2)U e I e Σ I eAccording to EN 60947-5-1AC-12 250 V 6 AAC-15 230 V 4 ADC-12 24 V 1.25 A12 ADC-13 24 V 2 ALED indicators2, status display for relays K1 and K2Reliability values acc. to EN ISO 13849‐1Category 3Performance Level PLd1) All the electrical connections must either be isolated from the mains supply by a safety transformer according to EN 61558-2-6 with limited output voltage in the event of a fault, or by otherequivalent isolation measures.2) See page 26 for information about the utilization category.U e = switching voltage I e = max. switching current per contact Σ I e = max. switching current on all safety contacts (cumulative current)18Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

Technical Data Safety Relay ESMConnection ESM-BA2..Parameter Value UnitOperating voltage ESM-BA201 24 ± 10% 1) V AC/DCESM-BA202 115 ± 10% V ACESM-BA203 230 ± 10% V ACReverse polarity protectionOn ESM-BA201Rated supply frequency 50 ... 60 HzPower consumptionApprox. 3 VA / 1.8 WControl voltage for start button 18.6 … 26 V DCControl cable length (cross-section 0.75 mm²) Max. 1000 mControl current for start button Approx. 40 mAExternal contact fuse (safety circuit) acc. to EN IEC 60269-110 A gG (T4A / F6A)Test voltage (control voltage/contacts) 2.5 kVRated impulse withstand voltage,Leakage path and air gaps acc. to DIN VDE 0110-14 kVRated insulation voltage 250 VOver voltage category according to DIN VDE 0110-1 3Safety contacts2 NO contacts (redundant)Min. switching current at 24 V DC 20 mASwitching voltage max. 24 V DC250 V ACBreaking capacity acc. to6 A 250 V AC2 A 24 V DCUtilization category 2)U e I e Σ I eAccording to EN 60947-5-1AC-12 250 V 6 AAC-15 230 V 4 ADC-12 24 V 1.25 A12 ADC-13 24 V 2 ALED indicators2, status display for relays K1 and K2Reliability values acc. to EN ISO 13849‐1Category 4Performance Level PLe1) All the electrical connections must either be isolated from the mains supply by a safety transformer according to EN 61558-2-6 with limited output voltage in the event of a fault, or by otherequivalent isolation measures.2) See page 26 for information about the utilization category.U e = switching voltage I e = max. switching current per contact Σ I e = max. switching current on all safety contacts (cumulative current)Subject to technical modifications; no responsibility is accepted for the accuracy of this information.19

Technical Data Safety Relay ESMConnection ESM-BA3..AC-12 V 8 4)Parameter Value UnitOperating voltage ESM-BA301 24 ± 10% 1) V AC/DCESM-BA302 115 ± 10% V ACESM-BA303 230 ± 10% V ACReverse polarity protectionOn ESM-BA301Rated supply frequency 50 ... 60 HzPower consumption Approx. 7 VAControl voltage for start button 18.6 … 26 V DCControl cable length (cross-section 0.75 mm²) Max. 1000 mControl current for start button Approx. 60 mAExternal contact fuse (safety circuit) acc. to EN IEC 60269-110 A gG (T6A / F8A)Test voltage (control voltage/contacts) 2.5 kVRated impulse withstand voltage,Leakage path and air gaps acc. to DIN VDE 0110-14 kVRated insulation voltage 250 VOver voltage category according to DIN VDE 0110-1 3Safety contacts3 NO contacts (redundant)Cumulative current on all contacts acc. to Max. 15 AMin. switching current at 24 V DC 5 mASwitching voltage max. 50 V DC250 V ACBreaking capacity acc. to ESM-BA301 8 A 250 V AC / 2 A 24 V DCESM-BA302ESM-BA3038 A 250 V AC / 3 A 24 V DCUtilization category 2)U e I e Σ I eAccording to EN 60947-5-1250 AAC-15 250 V 3 ADC-12 50 V 8 A 4)15 A 3)DC-13 24 V 3 ALED indicators2, status display for relays K1 and K2Signaling contact1 NC contactSwitching voltage max. 24 V DC250 V ACBreaking capacity acc. to ESM-BA301 2 A 250 V AC / 1.5 A 24 V DCESM-BA302ESM-BA3032 A 250 V AC / 2 A 24 V DCUtilization category 2)According to EN 60947-5-1U eAC-12 250 V 2 AAC-15 250 V 1.5 ADC-12 50 V 2 ADC-13 24 V 1.25 AReliability values acc. to EN ISO 13849‐1Category 4Performance Level PLe1) All the electrical connections must either be isolated from the mains supply by a safety transformer according to EN 61558-2-6 with limited output voltage in the event of a fault, or by otherequivalent isolation measures.2) See page 26 for information about the utilization category.3) If several ESM-BA3.. are closely spaced under load, the max. cumulative current at an ambient temperature of 20 °C = 9 A; at 30 °C = 3 A; at 40 °C = 1 A. If these currents are exceeded, aspacing of 5 mm between the devices must be observed.4) With Ohmic load.U e = switching voltage I e = max. switching current per contact Σ I e = max. switching current on all safety contacts (cumulative current)I e20Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

Technical Data Safety Relay ESMConnection ESM-BA7..Parameter Value UnitOperating voltage 24 ± 10% 1) V AC/DCReverse polarity protectionYesRated supply frequency 50 ... 60 HzPower consumption Approx. 7 VAControl voltage for start button 18.6 … 26 V DCControl cable length (cross-section 0.75 mm²) Max. 1000 mControl current for start button Approx. 100 mAExternal contact fuse (safety circuit) acc. to EN IEC 60269-110 A gG (T6A / F8A)Test voltage (control voltage/contacts) 2.5 kVRated impulse withstand voltage,Leakage path and air gaps acc. to DIN VDE 0110-14 kVRated insulation voltage 250 VOver voltage category according to DIN VDE 0110-1 3Safety contacts7 NO contacts (redundant)Min. switching current at 24 V DC 5 mASwitching voltage max. 50 V DC250 V ACBreaking capacity acc. to (per contact) 8 A 250 V AC2 A 24 V DCUtilization category 2)U e I e Σ I eAccording to EN 60947-5-1AC-12 250 V 8 AAC-15 250 V 3 ADC-12 50 V 8 A35 A 3)DC-13 24 V 3 ALED indicators2, status display for relays K1 and K2Auxiliary contacts4 NC contactsSwitching voltage max. 50 V DC250 V ACBreaking capacity acc. to2 A 250 V AC1.5 A 24 V DCUtilization category 2)U eI eAccording to EN 60947-5-1AC-12 250 V 8 AAC-15 250 V 3 ADC-12 50 V 8 ADC-13 24 V 3 ADoor monitoring outputs2 semiconductor outputsSemiconductor output current Max. 30 mASemiconductor output voltage 24 V DCReliability values acc. to EN ISO 13849‐1Category 4Performance Level PLe1) All the electrical connections must either be isolated from the mains supply by a safety transformer according to EN 61558-2-6 with limited output voltage in the event of a fault, or by otherequivalent isolation measures.2) See page 26 for information about the utilization category.3) With a housing distance of 10 mm. 20 A closely spaced at 40 °C.U e = switching voltage I e = max. switching current per contact Σ I e = max. switching current on all safety contacts (cumulative current)Subject to technical modifications; no responsibility is accepted for the accuracy of this information.21

Technical Data Safety Relay ESMConnection ESM-BT4..AC-12 V 8 4)Parameter Value UnitOperating voltage 24 ± 10% 1) V AC/DCReverse polarity protectionYesRated supply frequency 50 ... 60 HzPower consumption Approx. 4.6 WTime-delay range 1 ... 30 sControl voltage for start button 18.6 … 26 V DCControl cable length (cross-section 0.75 mm²) Max. 1000 mControl current for start button Approx. 190 mAExternal contact fuse (safety circuit) acc. to EN IEC 60269-110 A gG (T6A / F8A)Test voltage (control voltage/contacts) 2.5 kVRated impulse withstand voltage,Leakage path and air gaps acc. to DIN VDE 0110-14 kVRated insulation voltage 250 VOver voltage category according to DIN VDE 0110-1 3Safety contacts4 NO contacts (redundant)Cumulative current on all contacts acc. to Max. 15 AMin. switching current at 24 V DC 5 mASwitching voltage max. 50 V DC250 V ACBreaking capacity acc. to (per contact) 6 A 250 V AC2 A 24 V DCUtilization category 2)U e I e Σ I eAccording to EN 60947-5-1250 AAC-15 250 V 3 ADC-12 50 V 8 A 4)15 A 3)DC-13 24 V 3 ALED indicators4, status display for relays K1 to K4Reliability values acc. to EN ISO 13849‐1Category4 (non-time-delayed) / 3 (time-delayed)Performance Level PLe1) All the electrical connections must either be isolated from the mains supply by a safety transformer according to EN 61558-2-6 with limited output voltage in the event of a fault, or by otherequivalent isolation measures.2) See page 26 for information about the utilization category.3) With a housing distance of 5 mm. 9 A closely spaced at 40 °C.4) With Ohmic load.U e = switching voltage I e = max. switching current per contact Σ I e = max. switching current on all safety contacts (cumulative current)22Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

Technical Data Safety Relay ESMConnection ESM-2H2..AC-12 V 6 3)Parameter Value UnitOperating voltage ESM-2H201 24 ± 10% 1) V AC/DCESM-2H202 115 ± 10% V ACReverse polarity protectionOn ESM-2H201Rated supply frequency 50 ... 60 HzPower consumption Approx. 4 VAControl voltage on start buttons S12 - S13 and S22 - S23 18.6 … 26 V DCControl cable length (cross-section 0.75 mm²) Max. 1000 mControl current for both buttons Each 20 mAExternal contact fuse (safety circuit) acc. to EN IEC 60269-110 A gG (T4A / F6A)Test voltage (control voltage/contacts) 2.5 kVRated impulse withstand voltage,Leakage path and air gaps acc. to DIN VDE 0110-14 kVRated insulation voltage 250 VOver voltage category according to DIN VDE 0110-1 3Safety contacts2 NO contacts (redundant)Synchronization time Max. 0.5 sRelease time for the safety relay (response time) Max. 20 msMin. switching current at 24 V DC 20 mASwitching voltage max. 24 V DC250 V ACBreaking capacity acc. to6 A 250 V AC2 A 24 V DCUtilization category 2)U e I e Σ I eAccording to EN 60947-5-1250 AAC-15 230 V 4 ADC-12 24 V 1.25 A 3)8.4 ADC-13 24 V 2 ALED indicators2, status display for relays K1 and K2Reliability values acc. to EN ISO 13849‐1Category 4Performance Level PLe1) All the electrical connections must either be isolated from the mains supply by a safety transformer according to EN 61558-2-6 with limited output voltage in the event of a fault, or by otherequivalent isolation measures.2) See page 26 for information about the utilization category.3) With Ohmic load.U e = switching voltage I e = max. switching current per contact Σ I e = max. switching current on all safety contacts (cumulative current)Subject to technical modifications; no responsibility is accepted for the accuracy of this information.23

Technical Data Safety Relay ESMConnection ESM-ES3..AC-12 V 6 3)Parameter Value UnitOperating voltage ESM-ES301 24 ± 10% 1) V AC/DCESM-ES302 115 ± 10% V ACESM-ES303 230 ± 10% V ACReverse polarity protectionOn ESM-ES301Rated supply frequency 50 ... 60 HzPower consumptionApprox. 4 VA / 2 WControl voltage at inputs 18.6 … 26 V DCControl cable length (cross-section 0.75 mm²) Max. 1000 mExternal contact fuse (safety circuit) acc. to EN IEC 60269-110 A gG (T4A / F6A)Test voltage (control voltage/contacts) 2.5 kVRated impulse withstand voltage,Leakage path and air gaps acc. to DIN VDE 0110-14 kVRated insulation voltage 250 VOver voltage category according to DIN VDE 0110-1 3Cumulative current on all contacts acc. to Max. 10.5 ASafety contacts3 NO contacts (redundant)Min. switching current at 24 V DC 20 mASwitching voltage max. 50 V DC250 V ACBreaking capacity acc. to (per contact) 6 A 250 V AC2 A 24 V DCUtilization category 2)U e I e Σ I eAccording to EN 60947-5-1250 AAC-15 230 V 4 ADC-12 24 V 1.25 A 3)10.5 ADC-13 24 V 2 ALED indicators2, status display for relays K1 and K2Auxiliary contact1 NC contactContinuous current max. 500 4) mASwitching voltage max. 24 V AC/DCReliability values acc. to EN ISO 13849‐1Category 4Performance Level PLe1) All the electrical connections must either be isolated from the mains supply by a safety transformer according to EN 61558-2-6 with limited output voltage in the event of a fault, or by otherequivalent isolation measures.2) See page 26 for information about the utilization category.3) With Ohmic load.4) As monitoring contact for safety relay.U e = switching voltage I e = max. switching current per contact Σ I e = max. switching current on all safety contacts (cumulative current)24Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

Technical Data Safety Relay ESMConnection ESM-TE3..AC-12 V 6 4)Parameter Value UnitOperating voltage ESM-TE301 24 ± 10% 1) V AC/DCESM-TE302 115 ± 10% V ACESM-TE303 230 ± 10% V ACReverse polarity protectionOn ESM-TE301Rated supply frequency 50 ... 60 HzPower consumption Approx. 4 VATime-delay range 1 ... 30 sFixed time delay ESM-TE301-05S 0.5 2) sControl voltage at inputs 18.6 … 26 V DCControl cable length (cross-section 0.75 mm²) Max. 1000 mExternal contact fuse (safety circuit) acc. to EN IEC 60269-110 A gG (T4A / F6A)Test voltage (control voltage/contacts) 2.5 kVRated impulse withstand voltage,Leakage path and air gaps acc. to DIN VDE 0110-14 kVRated insulation voltage 250 VOver voltage category according to DIN VDE 0110-1 3Cumulative current on all contacts acc. to Max. 10.5 ASafety contacts3 NO contacts (redundant)Min. switching current at 24 V DC 20 mASwitching voltage max. 50 V DC250 V ACBreaking capacity acc. to (per contact) 6 A 250 V AC2 A 24 V DCUtilization category 3)U e I e Σ I eAccording to EN 60947-5-1250 AAC-15 250 V 4 ADC-12 24 V 1.25 A 4)10.5 ADC-13 24 V 2 ALED indicators2, status display for relays K1 and K2Auxiliary contact1 NC contactContinuous current max. 500 5) mASwitching voltage max. 24 V DCReliability values acc. to EN ISO 13849‐1Category 3Performance Level PLd1) All the electrical connections must either be isolated from the mains supply by a safety transformer according to EN 61558-2-6 with limited output voltage in the event of a fault, or by otherequivalent isolation measures.2) On ESM‐TE301-05S the potentiometer is not required.3) See page 26 for information about the utilization category.4) With Ohmic load.5) As monitoring contact for safety relay.U e = switching voltage I e = max. switching current per contact Σ I e = max. switching current on all safety contacts (cumulative current)Subject to technical modifications; no responsibility is accepted for the accuracy of this information.25

AppendixGlossaryFeedback loopComponents connected downstream of the safety relay can be monitoredfor correct function. For this purpose normally closed contacts on thesecomponents are integrated into the feedback loop on the relay.Connection examples safety relay ESMSafety relay ESM-BL..Automatic start without integration of the feedback loopRelay startAfter the relay has switched off due to a request from a safety componentconnected, the relay must be re-started. On this topic please pay attentionto section 5.2.2 of EN ISO 13849‐1:2008.ffAutomatic startThe relay switches on automatically as soon as the safety componentconnected changes back to the safe state.ffManual startThe relay is started by actuating a button. First the safe state of the safetycomponents connected must be re-established.ffMonitored, manual startThe relay is started by actuating a button. The button is monitored forjamming or possible tampering. Prior to starting the relay the safe stateof the safety components connected must be re-established.Single-channel safety circuitA single positively driven contact in the safety component is connectedto the relay. This connection is suitable for categories 1 or 2 accordingto EN ISO 13849‐1.S11 S21Manual start without integration of the feedback loopSS11 S21Automatic start with integration of the feedback loopDual-channel safety circuitTwo contacts of which at least one is a positively driven contact areconnected to the relay. This connection is suitable for categories 3 or 4according to EN ISO 13849‐1.Utilization category according to EN 60947-5-1 (extract)KAKBS11 S21 13 2314 24+Voltage typeACDCUtilizationcategoryAC-12AC-15DC-12DC-13Typical applicationsControlling resistive load andsemiconductor load in input circuitsof optocouplersControlling electro-magnetic load(> 72 VA)Controlling resistive load andsemiconductor load in input circuitsof optocouplersControlling electro-magnetic loadswith economy resistors in the circuitKAKBManual start with integration of the feedback loopSKA+KBS11 S21 13 2314 24KAKBEmergency stop/safety circuitA1U BA2A1 A2STOPU BSTOP1-channel2-channel26Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

AppendixSafety relays ESM-BA../ESM-BT..Monitored start without integration of the feedback loopAutomatic start with integration of the feedback loopKA+S11S21S12(S14)KBS11 S12 S21 13 23Un-monitored start without integration of the feedback loopKA14 24KBS11S21S12(S14)1-channel emergency stop/safety circuitAutomatic start without integration of the feedback loop+STOPS11 S21 S12 13 23(S14)S11 S12 S10 S13 S1414 24KAKBMonitored start with integration of the feedback loopS2-channel emergency stop/safety circuitwith ground fault/short circuit detectionSTOPKA+KBS11 S21 13 23S11 S12 S10 S13 S1414 24KAKBUn-monitored start with integration of the feedback loopS2-channel emergency stop/safety circuitwith connection for MGB, CES-AR and light curtains+ 24 V DCKA+KBS11 S12 S21 13 23S12S14S10S1314 24KAKBSubject to technical modifications; no responsibility is accepted for the accuracy of this information.27

AppendixSafety relay ESM-2H2..Safety contact expansion ESM-ES../ESM-TE..Monitoring a 2-hand controlIntegration of the contact expansionT1T2S11S12S13S21S22S23ESM-B...13 S11K 2KESM-ES /ESM-TE14S15 S16With integration of the feedback loopConnection of the contact expansionwith automatic start and with integration of the feedback loopKAKB++X1 X2 13 2314 24S21ESM-BA.../ESM-BT...S12(S14)13 S11K 214S23ESM-ES /ESM-TES15 S16 S2413 2314 24KAKBKAKBKAKBWithout integration of the feedback loopConnection of the contact expansionwith manual start and with integration of the feedback loopS++X1 X2 13 2314 24S21ESM-BA.../ESM-BT...S12(S14)13 S11K 214S23ESM-ES /ESM-TES15 S16 S2413 2314 24KAKBKAKBKAKB28Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

Item IndexIndex by item designationIndex by order numberItem Order no. Page Order no. Item PageESM-2H201 085 620 13ESM-2H202 098 345 13ESM-BA201 085 610 9ESM-BA201P 097 226 9ESM-BA202 085 611 9ESM-BA203 085 612 9ESM-BA301 085 613 10ESM-BA301P 097 230 10ESM-BA302 087 412 10ESM-BA303 087 413 10ESM-BA701P 097 225 11ESM-BL201 085 607 8ESM-BL202 085 608 8ESM-BL203 085 609 8ESM-BT401 090 818 12ESM-BT411 090 819 12ESM-BT421 090 820 12ESM-ES301 085 614 14ESM-ES302 085 615 14ESM-ES303 085 616 14ESM-F-AK4 097 194 16ESM-F-KK4 097 195 16ESM-TE301 085 617 15ESM-TE301-05S 097 223 15ESM-TE302 085 618 15ESM-TE303 085 619 15085 607 ESM-BL201 8085 608 ESM-BL202 8085 609 ESM-BL203 8085 610 ESM-BA201 9085 611 ESM-BA202 9085 612 ESM-BA203 9085 613 ESM-BA301 10085 614 ESM-ES301 14085 615 ESM-ES302 14085 616 ESM-ES303 14085 617 ESM-TE301 15085 618 ESM-TE302 15085 619 ESM-TE303 15085 620 ESM-2H201 13087 412 ESM-BA302 10087 413 ESM-BA303 10090 818 ESM-BT401 12090 819 ESM-BT411 12090 820 ESM-BT421 12097 194 ESM-F-AK4 16097 195 ESM-F-KK4 16097 223 ESM-TE301-05S 15097 225 ESM-BA701P 11097 226 ESM-BA201P 9097 230 ESM-BA301P 10098 345 ESM-2H202 1329

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