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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Nombre de résultats par page
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 812-8976
Référence fabricant118705 & ESR5-NV3-30
MarqueEaton
275,70 €
Each
Unité
- 2 - Emergency Stop, Safety Switch/Interlock - - - 2 - Automatic, Manual - Screw - -
N° de stock RS 324-7252
Référence fabricant774053
MarquePilz
120,40 €
Each
Unité
110 V ac 1 - Safety Switch/Interlock - - - 2 PNOZ X - - Screw - -
N° de stock RS 178-2438
Référence fabricant775600
MarquePilz
247,80 €
Each
Unité
24 V ac 2 1 Emergency Stop - - - 3 PNOZ X Automatic, Manual - Screw - -
N° de stock RS 733-2418
Référence fabricant2TLA010002R0000
MarqueABB
283,22 €
Each
Unité
24 V dc 2 - Two-Hand Control - - - 4 - - - Screw - -
N° de stock RS 666-7078
Référence fabricant2981936
85,20 €
Each
Unité
24 V dc - - Safety Switch/Interlock - - - - - - - - - -
N° de stock RS 741-8666
Référence fabricantSRB324ST 24V (V.3)
MarqueSchmersal
455,62 €
Each
Unité
24 V ac/dc 1, 2 - Light Beam/Curtain, Safety Switch/Interlock - - - - PROTECT - - Screw - -
N° de stock RS 122-2499
Référence fabricantR1.188.0620.0
MarqueWieland
262,38 €
Each
Unité
24 V dc 2 - Elevator System, Emergency Stop, Light Beam/Curtain, Safety Switch/Interlock - - - 3 safeRELAY Monitored - Screw CCC, CPT, cULus, EN 50156-1, EN 62061, EN ISO 13849-1, FS, GL, GOST R, TUV -
N° de stock RS 731-8960
Référence fabricantXPSBCE3410C
299,88 €
Each
Unité
115 V ac - 1 Two-Hand Control - - - 2 Preventa - - Cage Clamp - -
N° de stock RS 447-4528
Référence fabricantXPSAR371144
365,49 €
Each
Unité
24 V dc, 240 V ac 1, 2 2 Light Beam/Curtain - - - 7 Preventa - - Screw - -
N° de stock RS 893-7711
Référence fabricant2904950
88,13 €
Each
Unité
24 V dc 1 1 Emergency Stop, Safety Switch/Interlock - - - 1 PSRmini Automatic 1 Screw cUL, cULus, EAC, Functional Safety, UL -
N° de stock RS 155-850
Référence fabricant750126
MarquePilz
194,50 €
Each
Unité
24 V dc 2 1 Two-Hand Control - - - 3 PNOZsigma - - Screw - -
N° de stock RS 812-3899
Référence fabricantXPSBAE5120P
118,89 €
Each
Unité
24 V ac/dc - 1 Two-Hand Control - - - 2 Preventa - - Screw - -
N° de stock RS 918-6677
Référence fabricant774502
MarquePilz
354,76 €
Each
Unité
24 V dc 2 2 Emergency Stop, Safety Switch/Interlock - - - 2 PNOZ X Automatic, Manual - Screw - -
N° de stock RS 481-8237
Référence fabricantXPSAK351144
209,97 €
Each
Unité
120 V ac 2 1 Light Beam/Curtain, Safety Mat/Edge, Safety Switch/Interlock - - - 3 Preventa Automatic, Manual - Screw - -
N° de stock RS 240-8692
Référence fabricantBD5935.48 DC24V
MarqueDold
306,15 €
Each
Unité
24 V dc 1, 2 - Emergency Stop - - - 4 Safemaster - - Screw - -
N° de stock RS 447-4483
Référence fabricantXPSAC3421
147,69 €
Each
Unité
115 V ac - 1 Emergency Stop - - - 3 Preventa - - Screw - -
N° de stock RS 422-5180
Référence fabricantXPSAK371144
209,97 €
Each
Unité
230 V ac 2 1 Light Beam/Curtain, Safety Mat/Edge, Safety Switch/Interlock - - - 3 Preventa Automatic, Manual - Screw - -
N° de stock RS 741-8635
Référence fabricantSRB201ZH-24VDC
MarqueSchmersal
316,14 €
Each
Unité
24 V dc 2 2 Safety Switch/Interlock - - - 3 PROTECT - - - - -
N° de stock RS 422-5152
Référence fabricantXPSAK311144
209,97 €
Each
Unité
24 V ac/dc 2 1 Light Beam/Curtain, Safety Mat/Edge, Safety Switch/Interlock - - - 3 Preventa Automatic, Manual - Screw - -
N° de stock RS 712-5260
Référence fabricant2986960
117,59 €
Each
Unité
24 V dc - - - - - - 3 - - 3 Screw - -