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. 324-7280
Mfr. Part No.774325
BrandPilz
HK$1,390.00
Each
units
24 V ac/dc 1, 2 - Safety Switch/Interlock 2 PNOZ X - - Screw - 121mm - 87mm -
RS Stock No. 156-106
Mfr. Part No.750104
BrandPilz
HK$3,228.00
Each
units
24 V dc 2 1 Emergency Stop 3 PNOZsigma Automatic, Manual, Monitored - Screw - 120mm - 102mm -
RS Stock No. 447-4540
Mfr. Part No.XPSDME1132
HK$2,000.00
Each
units
24 V dc 1, 2 2 Safety Switch/Interlock 2 Preventa - - Screw - 114mm - 22.5mm -
RS Stock No. 447-4499
Mfr. Part No.XPSAC3721
HK$1,090.00
Each
units
230 V ac - 1 Emergency Stop 3 Preventa - - Screw - 114mm - 99mm -
RS Stock No. 447-4477
Mfr. Part No.XPSAC5121
HK$1,569.13
Each
units
24 V ac/dc - 1 Emergency Stop 3 Preventa - - Screw - 114mm - 99mm -
RS Stock No. 327-7613
Mfr. Part No.BH5928.92 DC24V 1-10S
BrandDold
HK$3,069.40
Each
units
24 V ac/dc 1, 2 - Emergency Stop 3 Safemaster - - - - 118mm - 84mm -
RS Stock No. 731-8951
Mfr. Part No.XPSBCE3110P
HK$2,330.00
Each
units
24 V ac/dc - 1 Two-Hand Control 2 Preventa - - Screw - 114mm - 99mm -
RS Stock No. 245-1854
Mfr. Part No.774318
BrandPilz
HK$3,159.19
Each
units
24 V dc, 230 V ac 2 1 Emergency Stop 3 PNOZ X Automatic, Monitored - Screw - 121mm - 87mm -
RS Stock No. 245-1860
Mfr. Part No.774080
BrandPilz
HK$3,255.50
Each
units
24 V ac/dc 2 1 Safety Switch/Interlock 7 - Automatic, Manual, Monitored - Screw - 121mm - 87mm -
RS Stock No. 918-6649
Mfr. Part No.777512
BrandPilz
HK$3,301.36
Each
units
24 V dc 2 2 Emergency Stop, Light Beam/Curtain, Safety Switch/Interlock 3 PNOZ X Automatic, Manual - Screw - 121mm - 94mm -
RS Stock No. 701-9212
Mfr. Part No.UE10-2FG2D0
BrandSick
HK$782.17
Each
units
24 V dc 1, 2 - Light Beam/Curtain 3 - - - Screw - 70.8mm - 89.8mm -
RS Stock No. 245-1905
Mfr. Part No.774500
BrandPilz
HK$4,114.85
Each
units
24 V dc 2 - Safety Switch/Interlock 2 PNOZ X Automatic, Manual, Monitored - Screw - 121mm - 87mm -
RS Stock No. 411-2157
Mfr. Part No.3TK2827-1BB40
BrandSiemens
HK$3,200.00
Each
units
24 V dc 1 1 Safety Switch/Interlock, Speed/Standstill Monitoring 2 SIRIUS Monitored - Screw - 120mm - 138.5mm -
RS Stock No. 245-1848
Mfr. Part No.774310
BrandPilz
HK$2,123.68
Each
units
24 V ac/dc 2 1 Safety Switch/Interlock 3 PNOZ X Automatic, Monitored - Screw - 121mm - 87mm -
RS Stock No. 757-9304
Mfr. Part No.G9SB-3012-A AC/DC24
BrandOmron
HK$1,412.40
Each
units
24 V ac/dc 2 1 Emergency Stop 3 - - - - - 112mm - 100mm -
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. 240-8743
Mfr. Part No.BD5987.02/001 AC50/60Hz 230V
BrandDold
HK$1,982.49
Each
units
230 V ac 2 - Emergency Stop 2 Safemaster - - - - 121mm - 74mm -
RS Stock No. 155-850
Mfr. Part No.750126
BrandPilz
HK$1,710.00
Each
units
24 V dc 2 1 Two-Hand Control 3 PNOZsigma - - Screw - 120mm - 98mm -
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. 477-3847
Mfr. Part No.XPSAV11113
HK$2,800.00
Each
units
24 V 1, 2 - Emergency Stop 3 Preventa - - - - 114mm - 99mm -
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