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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Omschrijving Prijs 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
RS-stocknr. 176-0029
Fabrikantnummer2TLA010052R0400
FabrikantABB Jokab
242,30 €
Each
Aantal stuks
24 V dc 3 4 Safety Switch - - - 4 Sentry Multi-Reset 4 Screw - -
RS-stocknr. 176-0030
Fabrikantnummer2TLA010051R0100
FabrikantABB Jokab
210,80 €
Each
Aantal stuks
265 V ac, 375 V dc - 3NO/NC Safety Switch - - - 4 Sentry Multi-Reset 4 Screw - -
RS-stocknr. 176-0031
Fabrikantnummer2TLA010051R0000
FabrikantABB Jokab
172,70 €
Each
Aantal stuks
24 V dc - 3NO/NC Safety Switch - - - 4 Sentry Multi-Reset 4 Screw - -
RS-stocknr. 176-0008
Fabrikantnummer2TLA010070R0000
FabrikantABB Jokab
248,90 €
Each
Aantal stuks
24 V dc 5 3NO/NC Safety Switch - - - 4 Sentry Multi-Reset 4 Screw - -
RS-stocknr. 176-0027
Fabrikantnummer2TLA010053R0400
FabrikantABB Jokab
242,30 €
Each
Aantal stuks
24 V dc 3 4 Safety Switch - - - 4 Sentry Multi-Reset 4 Screw - -
RS-stocknr. 176-0033
Fabrikantnummer2TLA010050R0000
FabrikantABB Jokab
151,70 €
Each
Aantal stuks
24 V dc 3 3NO/NC Safety Switch - - - 4 Sentry Multi-Reset 4 Screw - -
RS-stocknr. 176-0009
Fabrikantnummer2TLA010040R0000
FabrikantABB Jokab
123,60 €
Each
Aantal stuks
24 V dc 1 3NO/NC Safety Switch - - - 4 Sentry Multi-Reset 4 Screw - -
RS-stocknr. 176-0022
Fabrikantnummer2TLA010070R0400
FabrikantABB Jokab
319,70 €
Each
Aantal stuks
24 V dc 5 4 Safety Switch - - - 4 Sentry Multi-Reset 4 Screw - -
RS-stocknr. 176-0024
Fabrikantnummer2TLA010061R0100
FabrikantABB Jokab
196,30 €
Each
Aantal stuks
265 V ac, 375 V dc 2 3NO/NC Safety Switch - - - 4 Sentry Multi-Reset 4 Screw - -
RS-stocknr. 176-0032
Fabrikantnummer2TLA010050R0100
FabrikantABB Jokab
191,90 €
Each
Aantal stuks
265 V ac, 375 V dc 2 3NO/NC Safety Switch - - - 4 Sentry Multi-Reset 4 Screw - -
RS-stocknr. 176-0035
Fabrikantnummer2TLA010040R0200
FabrikantABB Jokab
123,60 €
Each
Aantal stuks
24 V dc 1 4 Safety Switch - - - 4 Sentry Multi-Reset 4 Screw - -
RS-stocknr. 176-0026
Fabrikantnummer2TLA010060R0000
FabrikantABB Jokab
194,50 €
Each
Aantal stuks
24 V dc 3 3NO/NC Safety Switch - - - 4 Sentry Multi-Reset 4 Screw - -
RS-stocknr. 176-0025
Fabrikantnummer2TLA010061R0000
FabrikantABB Jokab
158,60 €
Each
Aantal stuks
24 V dc 3 3NO/NC Safety Switch - - - 4 Sentry Multi-Reset 4 Screw - -
RS-stocknr. 176-0034
Fabrikantnummer2TLA010041R0600
FabrikantABB Jokab
123,60 €
Each
Aantal stuks
24 V dc - 4NO/NC Safety Switch - - - 5 Sentry Multi-Reset 4 Screw - -