Safety Relays

What are they?
A safety relay is a device that monitors for potential errors or faults in machinery or plants and works to prevent injury and reduce risk. When an error occurs, the safety relay initiates a response to bring the risk back to a safe, acceptable level. Safety relays protect both machinery and employees, preventing potential expensive maintenance and equipment replacement.
Example functions include initiating a controlled pause in machinery or equipment to safely stop movement. They can also be used as an emergency stop mechanism, switching off the power to particular machinery or plants.
Single function or multi-function?
Safety relays can be single function or multi-function. Single function relays monitor a specific type of activity while multi-function safety relays can monitor different functions. Multi-function safety relays can be used in place of several single function, individual units.
The benefits of using multi-function relays include simpler installation and less wiring. As fewer individual units are needed, using multi-function relays can also free up panel space. Multi-function safety relays give you greater flexibility to make changes within the design or panel.
Where would you find a safety relay?
Safety relays are often found in the following control devices:
- Two hand controls
- Movable guards
- Light curtains, light barriers and light grids
- Magnetic switches
- Safety mats and pressure sensitive mats
- Three position devices
- Non-contact safety sensors
- Safety switches
- Emergency stop buttons
Who uses them?
Anyone can integrate a safety relay within a circuit to create a safety circuit without any specific training.

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Description Prix Supply Voltage Number of Channels Auxiliary Contacts Function Safety Category ISO 13849-1 SIL IEC 61508 PL ISO 13849-1 Safety Contacts Range Reset Method Safety Category Terminal Type Standards Met Configurable
N° de stock RS 836-2738
Référence fabricantG7SA5A1B24DC
MarqueOmron
23,72 €
Each
Unité
24 V dc - - - - - - - - - - - - -
N° de stock RS 757-9308
Référence fabricantG9SB-3012-C AC/DC24
MarqueOmron
140,89 €
Each
Unité
24 V ac/dc 2 1 Emergency Stop - - - 3 - - - - - -
N° de stock RS 757-9310
Référence fabricantG9SA-321-T075 AC/DC24
MarqueOmron
311,26 €
Each
Unité
24 V ac/dc 2 1 Emergency Stop - - - 3 - - - - - -
N° de stock RS 890-3386
Référence fabricantG9SE-221-T05-DC24
MarqueOmron
161,04 €
Each
Unité
24 V dc 2 1 Emergency Stop - - - 2 - Automatic, Manual - Screw CAN C22.2 No.14, CSA C22.2 No.14, EN 62061 SIL3, EN 81-1, EN 81-2, EN ISO 13849-1: 2008 PL e Safety Category 4, EN/IEC 60947-5-1, GB 14048.5, IEC 62061 SIL 3, UL508 -
N° de stock RS 757-9317
Référence fabricantG9SA-301 AC100-240
MarqueOmron
256,70 €
Each
Unité
100 240 V ac 2 1 Emergency Stop - - - 1 - - - - - -
N° de stock RS 890-3389
Référence fabricantG9SE-201-DC24
MarqueOmron
102,61 €
Each
Unité
24 V dc 2 1 Emergency Stop, Light Beam/Curtain, Safety Switch/Interlock - - - 2 - Automatic, Manual - Screw CAN C22.2 No.14, CSA C22.2 No.14, EN 62061 SIL3, EN 81-1, EN 81-2, EN ISO 13849-1: 2008 PL e Safety Category 4, EN/IEC 60947-5-1, GB 14048.5, IEC 62061 SIL 3, UL508 -
N° de stock RS 860-3773
Référence fabricantG9SR-BC201-RC
MarqueOmron
135,52 €
Each
Unité
19.2 28.8 V dc 2 - Emergency Stop, Light Beam/Curtain, Safety Switch/Interlock - - - - - - - Cage Clamp - -
N° de stock RS 549-570
Référence fabricantG9SB200DACDC24
MarqueOmron
133,23 €
Each
Unité
24 V ac/dc 2 - Emergency Stop - - - 2 - Manual - - - -
N° de stock RS 860-3770
Référence fabricantG9SR-AD201-RC
MarqueOmron
148,28 €
Each
Unité
19.2 28.8 V dc 2 - Emergency Stop, Light Beam/Curtain, Safety Switch/Interlock - - - 2 - - - Cage Clamp - -
N° de stock RS 890-3395
Référence fabricantG9SE-221-T30-DC24
MarqueOmron
161,04 €
Each
Unité
24 V dc 2 1 Emergency Stop - - - 2 - Automatic, Manual - Screw CAN C22.2 No.14, CSA C22.2 No.14, EN 62061 SIL3, EN 81-1, EN 81-2, EN ISO 13849-1: 2008 PL e Safety Category 4, EN/IEC 60947-5-1, GB 14048.5, IEC 62061 SIL 3, UL508 -
N° de stock RS 757-9291
Référence fabricantG9SB-2002-C AC/DC24
MarqueOmron
126,54 €
Each
Unité
24 V ac/dc 2 - Emergency Stop - - - 2 - - - - - -
N° de stock RS 549-603
Référence fabricantG9SB301DACDC24
MarqueOmron
148,46 €
Each
Unité
24 V ac/dc 2 1 Emergency Stop - - - 3 - Manual - - - -
N° de stock RS 757-9314
Référence fabricantG9SA-321-T30 24AC/DC
MarqueOmron
311,26 €
Each
Unité
24 V ac/dc 2 1 Emergency Stop - - - 3 - - - - - -
N° de stock RS 890-3382
Référence fabricantG9SE-401-DC24
MarqueOmron
122,67 €
Each
Unité
24 V dc 2 1 Emergency Stop, Light Beam/Curtain, Safety Switch/Interlock - - - 4 - Automatic, Manual - Screw CAN C22.2 No.14, CSA C22.2 No.14, EN 62061 SIL3, EN 81-1, EN 81-2, EN ISO 13849-1: 2008 PL e Safety Category 4, EN/IEC 60947-5-1, GB 14048.5, IEC 62061 SIL 3, UL508 -
N° de stock RS 549-489
Référence fabricantG9SB301BACDC24
MarqueOmron
148,46 €
Each
Unité
24 V ac/dc 2 1 Emergency Stop - - - 3 - Automatic - - - -
N° de stock RS 757-9339
Référence fabricantG9SX-NS202-RT DC24
MarqueOmron
203,07 €
Each
Unité
24 V dc - - Safety Switch/Interlock - - - - - - - Screw - -
N° de stock RS 549-473
Référence fabricantG9SB-200-B AC/DC24
MarqueOmron
133,23 €
Each
Unité
24 V ac/dc 2 - Emergency Stop - - - 2 - Automatic - - - -
N° de stock RS 757-9323
Référence fabricantG9SA-501 AC100-240
MarqueOmron
317,94 €
Each
Unité
100 240 V ac 2 1 Emergency Stop - - - 5 - - - - - -
N° de stock RS 549-609
Référence fabricantG9SA-301 24AC/DC
MarqueOmron
157,08 €
Each
Unité
24 V ac/dc 1, 2 1 Emergency Stop - - - 3 - - - - - -
N° de stock RS 757-9301
Référence fabricantG9SB-3010 DC24
MarqueOmron
148,46 €
Each
Unité
24 V dc 2 1 Emergency Stop - - - 3 - - - - - -