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 buttonsWho 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 Width
RS Stock No. 918-6645
Mfr. Part No.777313
BrandPilz
HK$2,422.08
Each
units
24 240 V V ac/dc 2 1 Emergency Stop, Light Beam/Curtain, Safety Switch/Interlock 3 PNOZ X Automatic, Manual - Screw - 121mm - 94mm 45mm
RS Stock No. 240-8743
Mfr. Part No.BD5987.02/001 AC50/60Hz 230V
BrandDold
HK$2,552.04
Each
units
230 V ac 2 - Emergency Stop 2 Safemaster - - - - 121mm - 74mm 45mm
RS Stock No. 836-2738
Mfr. Part No.G7SA5A1B24DC
BrandOmron
HK$327.98
Each
units
24 V dc - - - - - - - - - 24mm - 50mm 13mm
RS Stock No. 609-7167
Mfr. Part No.XPSAFL5130
HK$1,860.00
Each
units
24 V ac/dc 1, 2 - Light Beam/Curtain 3 Preventa - - Screw - 114mm - 99mm 22.5mm
RS Stock No. 477-3847
Mfr. Part No.XPSAV11113
HK$2,800.00
Each
units
24 V 1, 2 - Emergency Stop 3 Preventa - - - - 114mm - 99mm 45mm
RS Stock No. 422-5180
Mfr. Part No.XPSAK371144
HK$4,411.69
Each
units
230 V ac 2 1 Light Beam/Curtain, Safety Mat/Edge, Safety Switch/Interlock 3 Preventa Automatic, Manual - Screw - 114mm - 99mm 45mm
RS Stock No. 360-4346
Mfr. Part No.XPSAF5130
HK$3,105.90
Each
units
24 V ac/dc 1, 2 - Safety Switch/Interlock 3 Preventa - - Screw - 114mm - 99mm 22.5mm
RS Stock No. 464-495
Mfr. Part No.XPSATE3710P
HK$3,711.48
Each
units
230 V ac 2 4 Emergency Stop, Safety Mat/Edge, Safety Switch/Interlock 2 Preventa Automatic, Manual - Screw - 114mm - 99mm 45mm
RS Stock No. 155-850
Mfr. Part No.750126
BrandPilz
HK$1,833.68
Each
units
24 V dc 2 1 Two-Hand Control 3 PNOZsigma - - Screw - 120mm - 98mm 22.5mm
RS Stock No. 666-7044
Mfr. Part No.2963802
HK$1,350.20
Each
units
24 V ac/dc 1 1 Emergency Stop, Safety Switch/Interlock 4 - - 1 Screw - 114.5mm - 99mm 22.5mm
RS Stock No. 814-6933
Mfr. Part No.XPSAR311144P
HK$6,224.02
Each
units
24 V ac/dc 2 2 Emergency Stop, Light Beam/Curtain, Safety Switch/Interlock 7 Preventa Monitored - Screw - 114mm - 99mm 90mm
RS Stock No. 893-7682
Mfr. Part No.2700467
HK$1,349.61
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 12.5mm
RS Stock No. 181-1416
Mfr. Part No.XPSATE5110P
HK$3,847.07
Each
units
100 120 V, 200 240 V - - - - - - - - - - - - -
RS Stock No. 122-2499
Mfr. Part No.R1.188.0620.0
BrandWieland
HK$2,251.28
Each
units
24 V dc 2 - Elevator System, Emergency Stop, Light Beam/Curtain, Safety Switch/Interlock 3 SafeRELAY Monitored - Screw CCC, CPT, CULus, EN 50156-1, EN 62061, EN ISO 13849-1, FS, GL, GOST R, TUV 96.5mm - 22.5mm 114mm
RS Stock No. 498-937
Mfr. Part No.3RK1205-0BG00-0AA2
BrandSiemens
HK$1,545.77
Each
units
26.5 31.5 V dc - - - 2 SIRIUS - - Cage Clamp - 91mm - 90mm 22.5mm
RS Stock No. 917-6673
Mfr. Part No.2TLA010033R3000
BrandABB
HK$1,305.08
Each
units
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 120mm - 22.5mm 84mm
RS Stock No. 814-6937
Mfr. Part No.XPSBF1132P
HK$4,112.43
Each
units
24 V dc 1 - Two-Hand Control 2 Preventa - - Screw - 114mm - 99mm 22.5mm
RS Stock No. 360-4352
Mfr. Part No.XPSAF5130P
HK$1,720.20
Each
units
24 V ac/dc 1, 2 - Safety Switch/Interlock 3 Preventa - - Screw - 114mm - 99mm 22.5mm
RS Stock No. 122-2495
Mfr. Part No.R1.188.1460.0
BrandWieland
HK$1,864.72
Each
units
230 V ac 2 1 Elevator System, Emergency Stop, Light Beam/Curtain, Safety Switch/Interlock 3 SafeRELAY Manual, Monitored - 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 114mm
RS Stock No. 178-2438
Mfr. Part No.775600
BrandPilz
HK$2,621.97
Each
units
24 V ac 2 1 Emergency Stop 3 PNOZ X Automatic, Manual - Screw - 121mm - 87mm 90mm