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. 733-2391
Fabrikantnummer2TLA010029R0000
FabrikantABB
151,10 €
Each
Aantal stuks
24 V dc 1, 2 - Light Beam/Curtain, Safety Mat/Edge, Safety Switch/Interlock - - - 2 - - - Terminal Block - -
RS-stocknr. 733-2351
Fabrikantnummer2TLA010026R0500
FabrikantABB
224,42 €
Each
Aantal stuks
230 V ac 1, 2 - Light Beam/Curtain, Safety Mat/Edge, Safety Switch/Interlock - - - 4 - - - Terminal Block - -
RS-stocknr. 733-2341
Fabrikantnummer2TLA010026R0000
FabrikantABB
208,87 €
Each
Aantal stuks
24 V dc 1, 2 - Light Beam/Curtain, Safety Mat/Edge, Safety Switch/Interlock - - - 4 - - - Terminal Block - -
RS-stocknr. 733-2345
Fabrikantnummer2TLA010026R0200
FabrikantABB
229,98 €
Each
Aantal stuks
24 V ac 1, 2 - Light Beam/Curtain, Safety Mat/Edge, Safety Switch/Interlock - - - 4 - - - Terminal Block - -
RS-stocknr. 733-2436
Fabrikantnummer2TLA020052R1000
FabrikantABB
281,60 €
Each
Aantal stuks
24 V dc - - Light Beam/Curtain, Safety Switch/Interlock - - - 2 - Automatic, Manual - Screw - -
RS-stocknr. 733-2418
Fabrikantnummer2TLA010002R0000
FabrikantABB
245,53 €
Each
Aantal stuks
24 V dc 2 - Two-Hand Control - - - 4 - - - Screw - -
RS-stocknr. 861-5360
Fabrikantnummer2TLA050040R0004
FabrikantABB
6,34 €
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 917-6673
Fabrikantnummer2TLA010033R3000
FabrikantABB
161,95 €
Each
Aantal stuks
24 V dc 2 - Emergency Stop, Safety Switch/Interlock - - - 4 - Automatic - Screw CCC, CCSAus, CE, EN 60204-1:2006 + A1:2009, EN 62061:2005, EN 954-1:1996, EN ISO 12100-1:2003, EN ISO 12100-2:2003, EN ISO 13849-1:2008, IEC 60529, IEC 60947-5-1:2009, TUV -
RS-stocknr. 861-5063
Fabrikantnummer2TLA030050R0400
FabrikantABB
143,20 €
Each
Aantal stuks
24 V dc - - - - - - - - Twist to Reset - - - -
RS-stocknr. 861-4871
Fabrikantnummer2TLA010027R0100
FabrikantABB
258,88 €
Each
Aantal stuks
24 V ac/dc 2 1 Expansion Module - - - 4 - Automatic - Screw - -
RS-stocknr. 861-4865
Fabrikantnummer2TLA010011R0000
FabrikantABB
195,97 €
Each
Aantal stuks
24 V dc 2 - Emergency Stop - - - 2 - Automatic - Screw - -
RS-stocknr. 861-5001
Fabrikantnummer2TLA020071R8000
FabrikantABB
567,70 €
Each
Aantal stuks
24 V dc - - - - - - - Pluto - - - - -
RS-stocknr. 861-4868
Fabrikantnummer2TLA010017R0100
FabrikantABB
111,48 €
Each
Aantal stuks
24 V ac/dc 2 - Expansion Module - - - 2 - Automatic - Screw - -
RS-stocknr. 861-6625
Fabrikantnummer2TLA020051R0600
FabrikantABB
160,39 €
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 861-6628
Fabrikantnummer2TLA020053R0100
FabrikantABB
1,47 €
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 861-6631
Fabrikantnummer2TLA030051R0200
FabrikantABB
104,30 €
Each
Aantal stuks
24 V dc - - - - - - - - Twist to Reset - - - -
RS-stocknr. 861-6634
Fabrikantnummer2TLA040005R0500
FabrikantABB
33,40 €
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 861-4890
Fabrikantnummer2TLA020053R0000
FabrikantABB
3,29 €
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 861-4957
Fabrikantnummer2TLA020056R1400
FabrikantABB
59,30 €
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 861-4916
Fabrikantnummer2TLA020054R1400
FabrikantABB
78,24 €
Each
Aantal stuks
- - - - - - - - - - - - - -