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 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 893-7682
Référence fabricant2700467
113,53 €
Each
Unité
24 V dc 1 3 Emergency Stop, Safety Switch/Interlock - - - 3 PSRmini Automatic, Manual 1 Cage Clamp CUL, CULus, EAC, Functional Safety, UL -
N° de stock RS 893-7708
Référence fabricant2700548
116,71 €
Each
Unité
24 V dc 2 3 Emergency Stop, Safety Switch/Interlock - - - 3 PSRmini Automatic, Manual - Cage Clamp CUL, CULus, EAC, Functional Safety, UL -
N° de stock RS 893-7745
Référence fabricant2904958
91,31 €
Each
Unité
24 V dc 2 2 Emergency Stop, Safety Switch/Interlock - - - 2 PSRmini Automatic 3 Screw CUL, CULus, EAC, Functional Safety, UL -
N° de stock RS 893-7723
Référence fabricant2904952
91,31 €
Each
Unité
24 V dc 2 1 Emergency Stop, Safety Switch/Interlock - - - 1 PSRmini Automatic - Screw CUL, CULus, EAC, Functional Safety, UL -
N° de stock RS 801-6028
Référence fabricant2981457
65,72 €
Each
Unité
24 V ac/dc 1 - - - - - 6 - - 1 Cage Clamp - -
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 666-7078
Référence fabricant2981936
85,20 €
Each
Unité
24 V dc - - Safety Switch/Interlock - - - - - - - - - -
N° de stock RS 712-5266
Référence fabricant2986588
92,99 €
Each
Unité
24 V dc - - - - - - 3 - - 2 Screw - -
N° de stock RS 712-5260
Référence fabricant2986960
117,59 €
Each
Unité
24 V dc - - - - - - 3 - - 3 Screw - -
N° de stock RS 893-7701
Référence fabricant2700569
116,71 €
Each
Unité
24 V dc 2 3 Emergency Stop, Safety Switch/Interlock - - - 3 PSRmini Automatic, Manual 4 Screw CUL, CULus, EAC, Functional Safety, UL -
N° de stock RS 893-7694
Référence fabricant2700499
113,53 €
Each
Unité
24 V dc 2 2 Emergency Stop, Safety Switch/Interlock - - - 2 PSRmini Automatic, Manual 3 Cage Clamp CUL, CULus, EAC, Functional Safety, UL -
N° de stock RS 893-7727
Référence fabricant2904953
91,31 €
Each
Unité
24 V dc 2 1 Emergency Stop, Safety Switch/Interlock - - - 1 PSRmini Manual 3 Screw CUL, CULus, EAC, Functional Safety, UL -
N° de stock RS 893-7720
Référence fabricant2904951
88,13 €
Each
Unité
24 V dc 1 1 Emergency Stop, Safety Switch/Interlock - - - 1 PSRmini Manual 1 Screw CUL, CULus, EAC, Functional Safety, UL -
N° de stock RS 666-7117
Référence fabricant2963776
145,76 €
Each
Unité
24 V ac/dc 2 1 Emergency Stop, Safety Switch/Interlock - - - 3 - - 3 Screw - -
N° de stock RS 893-7691
Référence fabricant2700498
113,53 €
Each
Unité
24 V dc 2 2 Emergency Stop, Safety Switch/Interlock - - - 2 PSRmini Automatic, Manual 3 Screw CUL, CULus, EAC, Functional Safety, UL -
N° de stock RS 190-8414
Référence fabricant2702902
289,20 €
Each
Unité
24 V dc 2 - - - - - 2 - Automatic, Manual, Monitored PLe Category 4, SILCL 3 Plug-In - -
N° de stock RS 893-7705
Référence fabricant2700570
116,71 €
Each
Unité
24 V dc 2 3 Emergency Stop, Safety Switch/Interlock - - - 3 PSRmini Automatic, Manual 4 Cage Clamp CUL, CULus, EAC, Functional Safety, UL -
N° de stock RS 712-5263
Référence fabricant2986575
92,99 €
Each
Unité
24 V dc - - - - - - 3 - - - Screw - -
N° de stock RS 712-5279
Référence fabricant2986957
117,59 €
Each
Unité
24 V dc - - - - - - 3 - - 3 Cage Clamp - -