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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Description Price Supply Voltage Number of Channels Auxiliary Contacts Function Safety Contacts Range Reset Method Safety Category Terminal Type Standards Met Depth Hazardous Area Certification Length Series
RS Stock No. 666-7044
Mfr. Part No.2963802
PHP7,811.83
Each
units
24 V ac/dc 1 1 Emergency Stop, Safety Switch/Interlock 4 - - 1 Screw - 114.5mm - 99mm -
RS Stock No. 712-5250
Mfr. Part No.2900509
PHP12,472.37
Each
units
24 V ac/dc 1, 2 1 Safety Switch/Interlock 3 - - 3 Screw - 114.5mm - 99mm -
RS Stock No. 666-7040
Mfr. Part No.2963763
PHP7,238.32
Each
units
24 V ac/dc 2 1 Emergency Stop, Safety Switch/Interlock 3 - - 3 Screw - 114.5mm - 99mm -
RS Stock No. 666-7117
Mfr. Part No.2963776
PHP8,243.32
Each
units
24 V ac/dc 2 1 Emergency Stop, Safety Switch/Interlock 3 - - 3 Screw - 114.5mm - 99mm -
RS Stock No. 666-7022
Mfr. Part No.2981020
PHP6,267.77
Each
units
24 V dc 1 - Emergency Stop, Safety Switch/Interlock 3 - - - Screw - 114.5mm - 99mm -
RS Stock No. 893-7723
Mfr. Part No.2904952
PHP7,778.29
Each
units
24 V dc 2 1 Emergency Stop, Safety Switch/Interlock 1 PSRmini Automatic - Screw cUL, cULus, EAC, Functional Safety, UL 102.5mm - 6.8mm -
RS Stock No. 712-5248
Mfr. Part No.2900525
PHP11,785.67
Each
units
24 V ac/dc 2 1 Safety Switch/Interlock 2 - - 3 Screw - 114.5mm - 99mm -
RS Stock No. 666-7053
Mfr. Part No.2981428
PHP16,950.20
Each
units
24 V dc 2 - Light Beam/Curtain, Safety Switch/Interlock 6 - - 3 Screw - 114.5mm - 99mm -
RS Stock No. 712-5254
Mfr. Part No.2900510
PHP12,472.37
Each
units
24 V ac/dc 2 1 Safety Switch/Interlock 3 - - 3 Screw - 114.5mm - 112mm -
RS Stock No. 666-7047
Mfr. Part No.2963750
PHP6,954.09
Each
units
24 V ac/dc 2 1 Emergency Stop, Safety Switch/Interlock 2 - - 3 Screw - 114.5mm - 99mm -
RS Stock No. 893-7694
Mfr. Part No.2700499
PHP8,098.72
Each
units
24 V dc 2 2 Emergency Stop, Safety Switch/Interlock 2 PSRmini Automatic, Manual 3 Cage Clamp cUL, cULus, EAC, Functional Safety, UL 114.5mm - 116.6mm -
RS Stock No. 177-4039
Mfr. Part No.2702356
PHP25,311.56
Each
units
24 V dc 2 - - 1 - Manual 1 Terminal Block - 114.5mm - 116.6mm -
RS Stock No. 893-7711
Mfr. Part No.2904950
PHP7,202.12
Each
units
24 V dc 1 1 Emergency Stop, Safety Switch/Interlock 1 PSRmini Automatic 1 Screw cUL, cULus, EAC, Functional Safety, UL 102.5mm - 93.1mm -
RS Stock No. 666-7069
Mfr. Part No.2981499
PHP13,387.47
Each
units
24 V dc 2 1 Safety Switch/Interlock 2 - - 3 Screw - 114.5mm - 112mm -
RS Stock No. 893-7691
Mfr. Part No.2700498
PHP6,778.08
Each
units
24 V dc 2 2 Emergency Stop, Safety Switch/Interlock 2 PSRmini Automatic, Manual 3 Screw cUL, cULus, EAC, Functional Safety, UL 114.5mm - 112.2mm -
RS Stock No. 893-7708
Mfr. Part No.2700548
PHP8,262.79
Each
units
24 V dc 2 3 Emergency Stop, Safety Switch/Interlock 3 PSRmini Automatic, Manual - Cage Clamp cUL, cULus, EAC, Functional Safety, UL 114.5mm - 12.5mm -
RS Stock No. 893-7682
Mfr. Part No.2700467
PHP8,098.72
Each
units
24 V dc 1 3 Emergency Stop, Safety Switch/Interlock 3 PSRmini Automatic, Manual 1 Cage Clamp cUL, cULus, EAC, Functional Safety, UL 114.5mm - 112.2mm -
RS Stock No. 177-4037
Mfr. Part No.2702095
PHP11,237.05
Each
units
24 V dc 1 - Emergency Stop 2 - Manual 1 Terminal Block - 114.5mm - 116.6mm -
RS Stock No. 893-7739
Mfr. Part No.2904955
PHP7,723.60
Each
units
24 V dc 2 1 Emergency Stop, Safety Switch/Interlock 1 PSRmini Manual 4 Screw cUL, cULus, EAC, Functional Safety, UL 102.5mm - 93.1mm -
RS Stock No. 712-5263
Mfr. Part No.2986575
PHP9,726.33
Each
units
24 V dc - - - 3 - - - Screw - 114.5mm - 99mm -