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  • Can be used up to category 4, PL e
  • A large number of options with only a few different module types
  • Various voltage ranges
  • Time-delayed and non-time-delayed
Safety relays ESM
+more information

The ESM modular principle

The modules in this series are typically built into a housing that is only 22.5 mm wide. Various safety relays are available to which expansion modules can be added on the output side. The advantage of the ESM modular principle is that different safety evaluations can be realized with only a few module variants.

The relays can be operated with various types of starting. The devices can be started manually or automatically using suitable wiring. The manual start can also monitor the start button.

Using suitable wiring it is also possible to integrate a feedback circuit such that safety-related parts of a machine or system downstream can also be monitored. In the ESM series the majority of the devices are available with a variety of input voltage ranges.

+Safety relay ESM-BL.., 2 safety contacts, cat. 3
  • Up to category 3 according to EN ISO 13849-1
  • LED status indicators
  • 1-channel or 2-channel control
  • 2 redundant safety contacts
Safety relay ESM-BL.., 2 safety contacts, cat. 3

Relay outputs

The outputs are electrically decoupled and of redundant design.

Connection options

By using suitable wiring the following functions can be selected:

  • Relay start with automatic start or a start button
  • Monitoring of downstream relays or contactors

Order numbers:

  • 085 607 ESM-BL201
  • 085 608 ESM-BL202
  • 085 609 ESM-BL203
Safety relay ESM-BL..
Dimension drawing
Block diagram
+Basic device ESM-BA2.., 2 safety contacts, cat. 4
  • ESM-BA.. Usage up to category 4 according to EN ISO 13849-1
  • LED status indicators
  • 1-channel or 2-channel control
  • Up to 7 redundant safety contacts
  • Auxiliary contact (signaling contact) optional
  • Short circuit and earth fault/ground fault monitoring optional
Basic device ESM-BA2.., 2 safety contacts, cat. 4

Relay outputs

The outputs are electrically decoupled and of redundant design.

Connection options

By using suitable wiring the following functions can be selected:

  • Relay start with automatic start or a start button
  • Monitoring of downstream relays or contactors
  • Simultaneity monitoring to monitor safety components over time
  • Relay start using a monitored start button
  • Short circuit monitoring to detect short circuits between the connection cables and to shut down the outputs or prevent relay starting if necessary
  • Earth fault/ground fault monitoring to detect short circuits between the connection cables and earth or ground and to shut down the outputs or prevent relay starting if necessary.

Auxiliary contacts

The relays in the series ESM-BA3.. and ESM-BA7 are available with electrically separate normally closed contacts and auxiliary contacts.

Connection terminals

Optionally, the ESM-BA... devices are also available as version with plug-in connection terminals.

Order numbers:

  • 085 610 ESM-BA201
  • 085 611 ESM-BA202
  • 085 612 ESM-BA203
  • 097 226 ESM-BA201P
Safety relay ESM-BA2..
Dimension drawing
Dimension drawing
ESM-BA2...
ESM-BA201P
Block diagram
+Basic device ESM-BA3.., 3 safety contacts, 1 auxiliary contact, cat. 4
  • ESM-BA.. Usage up to category 4 according to EN ISO 13849-1
  • LED status indicators
  • 1-channel or 2-channel control
  • Up to 3 redundant safety contacts
  • Auxiliary contact (signaling contact) optional
  • Short circuit and earth fault/ground fault monitoring optional
Basic device ESM-BA3.., 3 safety contacts, 1 auxiliary contact, cat. 4

Relay outputs

The outputs are electrically decoupled and of redundant design.

Connection options

By using suitable wiring the following functions can be selected:

  • Relay start with automatic start or a start button.
  • Monitoring of downstream relays or contactors
  • Simultaneity monitoring to monitor safety components over time.
  • Relay start using a monitored start button.
  • Short circuit monitoring to detect short circuits between the connection cables and to shut down the outputs or prevent relay starting if necessary.
  • Earth fault/ground fault monitoring to detect short circuits between the connection cables and earth or ground and to shut down the outputs or prevent relay starting if necessary.

Auxiliary contacts

The relays in the series ESM-BA3.. and ESM‑BA7 are available with electrically separate normally closed contacts and auxiliary contacts.

Connection terminals

Optionally, the ESM-BA... devices are also available as version with plug-in connection terminals.

Important:

Depending on the device in question, a connection kit will be required. Two connection kits are required for devices from series ESM-BA701P.

Order numbers:

  • 085 613 ESM-BA301
  • 087 412 ESM-BA302
  • 087 413 ESM-BA303
  • 097 230 ESM-BA301P
Safety relay ESM-BA3..
Dimension drawing
Block diagram
+Basic device ESM-BA7.., 7 safety contacts, 1 auxiliary contact, 1 signaling contact, cat. 4
  • ESM-BA.. Usage up to category 4 according to EN ISO 13849-1
  • LED status indicators
  • 1-channel or 2-channel control
  • Up to 7 redundant safety contacts
  • Auxiliary contact (signaling contact) optional
  • Short circuit and earth fault/ground fault monitoring optional
Basic device ESM-BA7.., 7 safety contacts, 1 auxiliary contact, 1 signaling contact, cat. 4

Relay outputs

The outputs are electrically decoupled and of redundant design.

Connection options

By using suitable wiring the following functions can be selected:

  • Relay start with automatic start or a start button.
  • Monitoring of downstream relays or contactors
  • Simultaneity monitoring to monitor safety components over time.
  • Relay start using a monitored start button.
  • Short circuit monitoring to detect short circuits between the connection cables and to shut down the outputs or prevent relay starting if necessary.
  • Earth fault/ground fault monitoring to detect short circuits between the connection cables and earth or ground and to shut down the outputs or prevent relay starting if necessary.

Auxiliary contacts

The relays in the series ESM-BA3.. and ESM‑BA7 are available with electrically separate normally closed contacts and auxiliary contacts.

Connection terminals

Optionally, the ESM-BA... devices are also available as version with plug-in connection terminals.

Important:

Two connection kits must be ordered for this device.

Order numbers:

  • 097 225 ESM-BA701P
Safety relay ESM-BA7..
Dimension drawing
Block diagram
+Basic device ESM-BT.., 4 safety contacts, time-delay, cat. 4
  • Usage up to category 4 according to EN ISO 13849-1
  • LED status indicators
  • 1-channel or 2-channel control
  • 4 redundant safety contacts of which 1, 2 or 3 contacts time-delayed
  • Time delay can be adjusted between 1 s and 30 s
  • Short circuit and earth fault/ground fault monitoring
Basic device ESM-BT.., 4 safety contacts, time-delay, cat. 4

Relay outputs

The outputs are electrically decoupled and of redundant design.

Connection options

By using suitable wiring the following functions can be selected:

  • Relay start with automatic start, a start button or a monitored start button
  • Monitoring of downstream relays or contactors
  • Simultaneity monitoring to monitor safety components over time
  • Short circuit monitoring to detect short circuits between the connection cables and to shut down the outputs or prevent relay starting if necessary
  • Earth fault/ground fault monitoring to detect short circuits between the connection cables and earth or ground and to shut down the outputs or prevent relay starting if necessary.

Time-delayed shutdown

The release time for the time-delay contacts can be set as required using a potentiometer on the safety relay.

Order numbers:

  • 090 818 ESM-BT401
  • 090 819 ESM-BT411
  • 090 820 ESM-BT421
Safety relay ESM-BT..
Dimension drawing
Block diagram
ESM-BT401
ESM-BT411
ESM-BT421
+Safety relay ESM-2H.. ,Type IIIc evaluation unit for two-hand control
  • Usage up to category 4 according to EN ISO 13849-1
  • Requirement level IIIC according to EN 574
  • LED status indicators
  • Operation using 2-hand control
  • 2 redundant safety contacts
  • Short-circuit and earth fault/ground fault monitoring can be selected
Safety relay ESM-2H.. ,Type IIIc evaluation unit for two-hand control

Relay outputs

The outputs are electrically decoupled and of redundant design.

Connection

  • Two buttons each with one normally closed contact and one normally open contact that are monitored for simultaneity according to EN 574. In this way a high level of protection against tampering is provided.
  • Short circuit monitoring to detect short circuits between the connection cables and to shut down the outputs or prevent relay starting if necessary
  • Earth fault/ground fault monitoring to detect short circuits between the connection cables and earth or ground and to shut down the outputs or prevent relay starting if necessary.

Connection options

By using suitable wiring the following function can be selected:

  • Monitoring of downstream relays or contactors

Order numbers:

  • 085 620 ESM-2H201
  • 098 345 ESM-2H202
Safety relay ESM-2H..
Dimension drawing
Block diagram
+Contact expansion ESM-ES.., 3 safety contacts, 1 auxiliary contact, cat. 3
  • Usage up to category 3 according to EN ISO 13849-1
  • LED status indicators
  • Control using safety relays
  • 3 redundant safety contacts
  • Signaling contact
  • Earth fault/ground fault monitoring can be selected
Contact expansion ESM-ES.., 3 safety contacts, 1 auxiliary contact, cat. 3

Relay outputs

The outputs are electrically decoupled and of redundant design.

Connection

By using suitable wiring the following function can be selected:

  • Earth fault/ground fault monitoring to detect short circuits between the connection cables and earth or ground and to shut down the outputs or prevent relay starting if necessary.

Order numbers:

  • 085 614 ESM-ES301
  • 085 615 ESM-ES302
  • 085 616 ESM-ES303
Contact expansion ESM-ES..
Dimension drawing
Block diagram
+Contact expansion ESM-TE.., 3 safety contact, 1 auxiliary contact, time-delay, cat. 4
  • Up to category 4 according to EN ISO 13849-1
  • LED status indicators
  • Control using safety relays
  • 3 redundant time-delayed safety contacts
  • Time delay can be adjusted between 1 s and 30 s
  • Fixed time delay of 0.5 s optional
  • 1 auxiliary contact
  • Earth fault/ground fault monitoring can be selected
Contact expansion ESM-TE.., 3 safety contact, 1 auxiliary contact, time-delay, cat. 4

Relay outputs

The outputs are electrically decoupled and of redundant design.

Connection

By using suitable wiring the following function can be selected:

  • Earth fault/ground fault monitoring to detect short circuits between the connection cables and earth or ground and to shut down the outputs or prevent relay starting if necessary.

Time-delayed shutdown

The release time for the time-delay contacts can be set as required using a potentiometer on the safety relay.

Order numbers:

  • 085 617 ESM-TE301
  • 085 618 ESM-TE302
  • 085 619 ESM-TE303
  • 097 223 ESM-TE301-05S
Contact expansion ESM-ES..
Dimension drawing
Block diagram

Click on the product to view the available accessories!

+Basic device ESM-BA2.., 2 safety contacts, cat. 4
Readhead
  • Read heads design A for ESM, PVC
    094 702 CMS-R-AZA-05VL
    095 558 CMS-R-AZA-10VL
  • Read heads design A for ESM, M8
    102 275 CMS-R-AZC-SC
  • Read heads design B for ESM, PVC
    097 368 CMS-R-BZB-03V
  • Read heads design B for ESM, M8
    100 753 CMS-R-BZB-SC
Connection material
  • Connection kit ESM...P with screw terminals
    097 194 ESM-F-AK4
  • Connection kit ESM...P with spring terminals
    097 195 ESM-F-KK4
+Basic device ESM-BA3.., 3 safety contacts, 1 auxiliary contact, cat. 4
Readhead
  • Read heads design A for ESM, PVC
    094 702 CMS-R-AZA-05VL
    095 558 CMS-R-AZA-10VL
  • Read heads design A for ESM, M8
    102 275 CMS-R-AZC-SC
  • Read heads design B for ESM, PVC
    097 368 CMS-R-BZB-03V
  • Read heads design B for ESM, M8
    100 753 CMS-R-BZB-SC
Connection material
  • Connection kit ESM...P with screw terminals
    097 194 ESM-F-AK4
  • Connection kit ESM...P with spring terminals
    097 195 ESM-F-KK4
+Basic device ESM-BA7.., 7 safety contacts, 1 auxiliary contact, 1 signaling contact, cat. 4
Readhead
  • Read heads design A for ESM, PVC
    094 702 CMS-R-AZA-05VL
    095 558 CMS-R-AZA-10VL
  • Read heads design A for ESM, M8
    102 275 CMS-R-AZC-SC
  • Read heads design B for ESM, PVC
    097 368 CMS-R-BZB-03V
  • Read heads design B for ESM, M8
    100 753 CMS-R-BZB-SC
Connection material
  • Connection kit ESM...P with screw terminals
    097 194 ESM-F-AK4
  • Connection kit ESM...P with spring terminals
    097 195 ESM-F-KK4
+Manuals
TitleDoc. nr.
Edition
Date
LanguagesDocument
(Downloads)
Emergency Stop Safety Relay ESM-BA2..090071
04
11/13
DEPDF 1463 KB
ENPDF 1455 KB
Emergency Stop Safety Relay ESM-BA3..090073
03
09/11
DEPDF 1086 KB
ENPDF 1091 KB
Safety Expansion Contact Block ESM-ES3..090074
04
11/13
DEPDF 1529 KB
ENPDF 1503 KB
Time-Delayed Safety Relay ESM-TE3..090075
06
11/13
DEPDF 1540 KB
ENPDF 1513 KB
2-Hand Safety Relay, Series ESM-2H2..109071
04
11/13
DEPDF 527 KB
ENPDF 510 KB
Safety Relay, Series ESM-BT4..109074
05
01/12
DEPDF 663 KB
ENPDF 969 KB
Emergency Stop Safety Relay ESM-BA7..090093
03
04/12
DEPDF 795 KB
ENPDF 819 KB
Emergency Stop Safety Relay ESM-BL2..090070
04
11/13
ENPDF 1447 KB
+Catalogs
TitleDoc. nr.
Edition
Date
LanguagesDocument
(Downloads)
Magnetisch codierte Sicherheitsschalter CMS086823
08
10/12
DEPDF 8125 KB
Sicherheitsrelais ESM110650
05
02/13
DEPDF 6843 KB
Magnetically Coded Safety Switches CMS086824
08
10/12
ENPDF 8027 KB
Safety Relays ESM110651
05
02/13
ENPDF 6850 KB
Système de sécurité sans contact CMS090606
08
10/12
FRPDF 8099 KB
Relais de sécurité ESM110652
05
02/13
FRPDF 6951 KB
+Declarations of conformity

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