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. 893-7708
Mfr. Part No.2700548
TWD4,712.00
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. 515-1759
Mfr. Part No.R1.188.0500.1
BrandWieland
TWD4,890.00
Each
units
24 V ac/dc 2 1 Safety Switch/Interlock 3 SafeRELAY Monitored - Screw - 114mm - 99mm -
RS Stock No. 515-1787
Mfr. Part No.R1.188.0530.1
BrandWieland
TWD5,805.00
Each
units
24 V ac/dc 2 1 Two-Hand Control 2 SafeRELAY Monitored - Screw - 114mm - 96.5mm -
RS Stock No. 733-2351
Mfr. Part No.2TLA010026R0500
BrandABB
TWD7,694.00
Each
units
230 V ac 1, 2 - Light Beam/Curtain, Safety Mat/Edge, Safety Switch/Interlock 4 - - - Terminal Block - 120mm - 84mm -
RS Stock No. 378-5388
Mfr. Part No.774435
BrandPilz
TWD16,027.00
Each
units
115 V ac 2 1 Two-Hand Control 3 PNOZ X Manual - Screw - 121mm - 101mm -
RS Stock No. 893-7739
Mfr. Part No.2904955
TWD3,706.00
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. 183-7201
Mfr. Part No.3SK2122-2AA10
BrandSiemens
TWD28,661.00
Each
units
24 V dc 4 - - - SIRIUS - PLe, SIL 3 Push In - 100mm - 45mm -
RS Stock No. 836-2738
Mfr. Part No.G7SA5A1B24DC
BrandOmron
TWD1,283.00
Each
units
24 V dc - - - - - - - - - 24mm - 50mm -
RS Stock No. 122-2497
Mfr. Part No.R1.188.1810.0
BrandWieland
TWD6,370.00
Each
units
24 V ac/dc 2 1 Elevator System, Emergency Stop, Light Beam/Curtain, Safety Switch/Interlock 3 SafeRELAY Manual - Screw CCC, CPT, CULus, EN 50156-1, EN 61511, EN 62061, EN 81-1, EN ISO 13849-1, FS, GL, GOST R, TUV 96.5mm - 22.5mm -
RS Stock No. 666-7038
Mfr. Part No.2963912
TWD10,515.00
Each
units
24 V ac/dc 1, 2 1 Emergency Stop, Safety Switch/Interlock 8 - - 3 Screw - 114.5mm - 99mm -
RS Stock No. 733-2389
Mfr. Part No.2TLA010028R2400
BrandABB
TWD10,300.00
Each
units
115 V ac 1, 2 - Light Beam/Curtain, Safety Mat/Edge, Safety Switch/Interlock 5 - - - Terminal Block - 120mm - 84mm -
RS Stock No. 240-8737
Mfr. Part No.BD5987.02/001 DC24V
BrandDold
TWD7,348.00
Each
units
24 V dc 1, 2 - Emergency Stop 2 Safemaster - - Screw - 121mm - 74mm -
RS Stock No. 801-5943
Mfr. Part No.2981062
TWD5,670.00
Each
units
24 V ac/dc 2 - Emergency Stop, Light Beam/Curtain, Safety Switch/Interlock 4 - Automatic, Manual 3 Cage Clamp - 114.5mm - 112mm -
RS Stock No. 378-5394
Mfr. Part No.774438
BrandPilz
TWD14,310.00
Each
units
230 V ac 2 1 Two-Hand Control 3 PNOZ X Manual - Screw - 121mm - 101mm -
RS Stock No. 176-0024
Mfr. Part No.2TLA010061R0100
BrandABB Jokab
TWD6,891.00
Each
units
265 V ac, 375 V dc 2 3NO/NC Safety Switch 4 Sentry Multi-Reset 4 Screw - 120mm - 22.5mm -
RS Stock No. 893-7742
Mfr. Part No.2904957
TWD3,718.00
Each
units
24 V dc 2 1 Emergency Stop, Safety Switch/Interlock 1 PSRmini Manual - Screw CUL, CULus, EAC, Functional Safety, UL 102.5mm - 6.8mm -
RS Stock No. 122-2498
Mfr. Part No.R1.188.1440.0
BrandWieland
TWD6,599.00
Each
units
24 V ac/dc 2 1 Elevator System, Emergency Stop, Light Beam/Curtain, Safety Switch/Interlock 3 SafeRELAY Manual, Monitored - Screw CCC, CULus, EN 50156-1, EN 61511, EN 62061, EN 81-1, EN ISO 13849-1, GL, GOST R, TUV 96.5mm - 22.5mm -
RS Stock No. 733-2433
Mfr. Part No.2TLA010002R0500
BrandABB
TWD9,194.00
Each
units
230 V ac 2 - Two-Hand Control 4 - - - Screw - 120mm - 74mm -
New
RS Stock No. 191-9870
Mfr. Part No.751177
BrandPilz
TWD5,547.47
Each
units
- - - - - - - - - - - - - -
RS Stock No. 812-8960
Mfr. Part No.ESR5-NO-31-24VAC-DC
BrandEaton
TWD8,158.00
Each
units
- 2 - Emergency Stop, Safety Switch/Interlock 3 - Automatic, Manual - Screw - 99mm - 22.5mm -