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 245-1848
Référence fabricant774310
MarquePilz
193,90 €
Each
Unité
24 V ac/dc 2 1 Safety Switch/Interlock - - - 3 PNOZ X Automatic, Monitored - Screw - -
N° de stock RS 239-1055
Référence fabricant774306
MarquePilz
144,40 €
Each
Unité
24 V ac/dc 2 - Safety Switch/Interlock - - - 2 PNOZ X Automatic, Manual - Screw - -
N° de stock RS 447-4477
Référence fabricantXPSAC5121
147,69 €
Each
Unité
24 V ac/dc - 1 Emergency Stop - - - 3 Preventa - - Screw - -
N° de stock RS 156-106
Référence fabricant750104
MarquePilz
194,50 €
Each
Unité
24 V dc 2 1 Emergency Stop - - - 3 PNOZsigma Automatic, Manual, Monitored - Screw - -
N° de stock RS 239-1033
Référence fabricant774300
MarquePilz
143,30 €
Each
Unité
24 V ac/dc 1 1 Safety Switch/Interlock - - - 3 PNOZ X Automatic, Manual - Screw - -
N° de stock RS 836-2738
Référence fabricantG7SA5A1B24DC
MarqueOmron
23,96 €
Each
Unité
24 V dc - - - - - - - - - - - - -
N° de stock RS 245-1905
Référence fabricant774500
MarquePilz
289,10 €
Each
Unité
24 V dc 2 - Safety Switch/Interlock - - - 2 PNOZ X Automatic, Manual, Monitored - Screw - -
N° de stock RS 324-7274
Référence fabricant774059
MarquePilz
120,40 €
Each
Unité
24 V ac/dc 1 - Safety Switch/Interlock - - - 2 PNOZ X - - Screw - -
N° de stock RS 784-5780
Référence fabricant3SK1111-1AB30
MarqueSiemens
153,95 €
Each
Unité
24 V ac/dc 1 - - - - - 4 SIRIUS Automatic, Monitored - Screw - -
N° de stock RS 245-1854
Référence fabricant774318
MarquePilz
193,90 €
Each
Unité
24 V dc, 230 V ac 2 1 Emergency Stop - - - 3 PNOZ X Automatic, Monitored - Screw - -
N° de stock RS 324-7268
Référence fabricant774056
MarquePilz
120,40 €
Each
Unité
230 V ac 1 - Safety Switch/Interlock - - - 2 PNOZ X - - Screw - -
N° de stock RS 812-8951
Référence fabricant119380 & ESR5-NO-31-230VAC
MarqueEaton
162,74 €
Each
Unité
- 2 - Emergency Stop, Safety Switch/Interlock - - - 3 - Automatic, Manual - Screw - -
N° de stock RS 156-083
Référence fabricant750103
MarquePilz
149,90 €
Each
Unité
24 V dc 2 - Emergency Stop, Light Beam/Curtain, Safety Switch/Interlock - - - 2 PNOZsigma Automatic, Manual, Monitored - Screw - -
N° de stock RS 249-6302
Référence fabricant440F-C4000P
820,00 €
Each
Unité
- - - - - - - - - - - - - -
N° de stock RS 362-0168
Référence fabricant774585
MarquePilz
122,80 €
Each
Unité
24 V dc 1 - Expansion Module - - - 4 PNOZ X Automatic - Screw - -
N° de stock RS 245-1955
Référence fabricant774150
MarquePilz
227,20 €
Each
Unité
24 V dc 2 1 Expansion Module - - - 8 PNOZ X - - Screw - -
N° de stock RS 360-4346
Référence fabricantXPSAF5130
175,59 €
Each
Unité
24 V ac/dc 1, 2 - Safety Switch/Interlock - - - 3 Preventa - - Screw - -
N° de stock RS 489-6350
Référence fabricant777302
MarquePilz
170,90 €
Each
Unité
24 → 240 V ac/dc 1, 2 1 Safety Switch/Interlock - - - 3 PNOZ X - - Screw - -
N° de stock RS 893-7688
Référence fabricant2700466
113,53 €
Each
Unité
24 V dc 1 3 Emergency Stop, Safety Switch/Interlock - - - 3 PSRmini Automatic, Manual 1 Screw cUL, cULus, EAC, Functional Safety, UL -
N° de stock RS 733-2391
Référence fabricant2TLA010029R0000
MarqueABB
185,68 €
Each
Unité
24 V dc 1, 2 - Light Beam/Curtain, Safety Mat/Edge, Safety Switch/Interlock - - - 2 - - - Terminal Block - -