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. 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 -
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 -
RS Stock No. 918-6686
Mfr. Part No.777301
BrandPilz
HK$1,835.10
Each
units
24 V ac/dc 2 1 Emergency Stop, Light Beam/Curtain, Safety Switch/Interlock 3 PNOZ X Automatic, Manual - Screw - 121mm - 94mm -
RS Stock No. 918-6645
Mfr. Part No.777313
BrandPilz
HK$2,265.66
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 -
RS Stock No. 422-5180
Mfr. Part No.XPSAK371144
HK$2,200.00
Each
units
230 V ac 2 1 Light Beam/Curtain, Safety Mat/Edge, Safety Switch/Interlock 3 Preventa Automatic, Manual - Screw - 114mm - 99mm -
RS Stock No. 240-8692
Mfr. Part No.BD5935.48 DC24V
BrandDold
HK$2,242.50
Each
units
24 V dc 1, 2 - Emergency Stop 4 Safemaster - - Screw - 121mm - 74mm -
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 -
RS Stock No. 666-7022
Mfr. Part No.2981020
HK$1,084.03
Each
units
24 V dc 1 - Emergency Stop, Safety Switch/Interlock 3 - - - Screw - 114.5mm - 99mm -
RS Stock No. 447-4483
Mfr. Part No.XPSAC3421
HK$1,090.00
Each
units
115 V ac - 1 Emergency Stop 3 Preventa - - Screw - 114mm - 99mm -
RS Stock No. 836-2738
Mfr. Part No.G7SA5A1B24DC
BrandOmron
HK$293.92
Each
units
24 V dc - - - - - - - - - 24mm - 50mm -
RS Stock No. 156-083
Mfr. Part No.750103
BrandPilz
HK$1,510.97
Each
units
24 V dc 2 - Emergency Stop, Light Beam/Curtain, Safety Switch/Interlock 2 PNOZsigma Automatic, Manual, Monitored - Screw - 120mm - 102mm -
RS Stock No. 893-7701
Mfr. Part No.2700569
HK$966.65
Each
units
24 V dc 2 3 Emergency Stop, Safety Switch/Interlock 3 PSRmini Automatic, Manual 4 Screw CUL, CULus, EAC, Functional Safety, UL 114.5mm - 112.2mm -
RS Stock No. 893-7705
Mfr. Part No.2700570
HK$1,194.13
Each
units
24 V dc 2 3 Emergency Stop, Safety Switch/Interlock 3 PSRmini Automatic, Manual 4 Cage Clamp CUL, CULus, EAC, Functional Safety, UL 114.5mm - 116.6mm -
RS Stock No. 893-7736
Mfr. Part No.2904954
HK$914.73
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. 180-6091
Mfr. Part No.1085345
BrandSick
HK$1,969.11
Each
units
30 V dc 2 - - 2 - Automatic, Manual Cat 4 Plug In - 124.6mm - 18mm -
RS Stock No. 733-2360
Mfr. Part No.2TLA010028R1000
BrandABB
HK$3,063.66
Each
units
24 V dc 1, 2 - Light Beam/Curtain, Safety Mat/Edge, Safety Switch/Interlock 5 - - - Terminal Block - 120mm - 84mm -
RS Stock No. 893-7708
Mfr. Part No.2700548
HK$1,186.01
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. 447-4607
Mfr. Part No.XPSBF1132
HK$2,200.00
Each
units
24 V dc - 2 Two-Hand Control 2 Preventa - - - - 114mm - 99mm -
RS Stock No. 666-7062
Mfr. Part No.2981680
HK$1,062.23
Each
units
24 V dc 1 - Expansion Module 6 - - 3 Screw - 114.5mm - 112mm -
RS Stock No. 123-2737
Mfr. Part No.280002-P
BrandIDEM
HK$1,439.35
Each
units
24 V ac/dc 2 1 Emergency Stop, Safety Switch/Interlock 3 Viper Automatic, Manual - Plug In CULus, EN 60204-1, EN 62061, EN ISO 12100, EN ISO 13849-1, EN ISO 13849-2, TUV, UL 508 99mm - 22.5mm -
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