Safety-Rated Interlock Switches

Safety rated interlock switches are safeguarding measures designed to improve safety in situations where guards or gates are used around hazardous machinery or equipment.

What are safety rated interlock switches used for?

In industrial situations, safety rated interlock switches prevent or permit the use of machinery, depending on safety conditions. They allow current to pass to the machine when it is safe to operate, for example when the machine's guard is closed. And they cut off the power if there's a potential hazard, such as a guard being opened. When a dangerous piece of equipment such as a metalworking machine is in operation, safety rated interlock switch might be used to ensure safety gates remain closed, excluding workers from hazardous areas.

Types of safety rated interlock switches

Safety rated interlock switches vary according to their lock type, maximum current and voltage, as well as their housing material. Guard-locking switches prevent access to machine parts that may still be in motion, even when the power has been cut. Hinge switches will close protective gates and guards in unsafe conditions.


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Description Price Connection Type Lock Style Normal State Configuration Housing Material Maximum AC Voltage Maximum DC Voltage Safety Contacts Range Actuator Included Lock Type Number of Head Directions Series Auxiliary Contacts Depth
RS庫存編號 136-3173
製造零件編號6016469066
HK$345.14
單位
Screw Key 2NC PBT 240V 250V - - Yes - 4 SKT - 83mm
RS庫存編號 609-6704
製造零件編號XCSB501
HK$1,157.50
單位
Screw Key 1NC/2NO Zamak 240V 250V 1NC/2NO Preventa - - 8 XCSB - 44mm
RS庫存編號 492-3474
製造零件編號DM2-CLIN-H
BrandFortress
HK$4,054.68
單位
- Key - Die Cast Zinc - - - MGard - CL-H&L 4 DM2 - 26mm
RS庫存編號 179-4745
製造零件編號HS5L-VC44LM-G
BrandIdec
HK$1,117.18
單位
M20 Key 1NC/1NO (Lock Monitor), 2NC (Door Monitor) Metal (Head) 250V 30V 1NC/1NO (Lock Monitor), 2NC (Door Monitor) - - Spring Lock - HS5L - 127mm
RS庫存編號 296-4675
製造零件編號XCSPA792
HK$275.14
單位
Screw Key 2NC Glass Fibre Reinforced PA 240V 250V 2NC Preventa - - 8 XCSPA - 30mm
RS庫存編號 176-0019
製造零件編號2TLA020051R5100
BrandABB Jokab
HK$637.26
單位
M12 - - PBT - 24V - Eden - Interlock - - - 75.2mm
RS庫存編號 133-0077
製造零件編號XCSDMP50010
HK$724.89
單位
10m Pre-Cabled - - Plastic - - NC/3NO Preventa Yes - - XCSDMP - 88mm
RS庫存編號 826-3906
製造零件編號208007
BrandIDEM
HK$974.23
單位
M20 Key 3NC/1NO Stainless Steel 240V - 3NC Kobra - - 4 K-SS 1NO 37.5mm
RS庫存編號 700-4298
製造零件編號XCSA703
HK$869.44
單位
Screw Clamp Key NO/2NC Zamak 240V 250V NO/2NC Preventa - - 4 XCSA - 44mm
RS庫存編號 185-7254
製造零件編號M-TS (B201)
BrandIDEM
HK$1,800.08
單位
M6 Screw Key - Die Cast Metal, Stainless Steel - - - - - Interlock 2 M-TS - 109mm
RS庫存編號 263-3652
製造零件編號XCSC502
HK$1,070.00
單位
Screw Key 1NC/2NO Zamak 240V 250V 1NC/2NO Preventa - - 8 XCSC - 44mm
RS庫存編號 179-4742
製造零件編號HS5L-VA44LM-G
BrandIdec
HK$1,117.18
單位
M20 Key 1NC/1NO (Door Monitor), 1NC/1NO (Lock Monitor) Metal (Head) 250V 30V 1NC/1NO (Door Monitor), 1NC/1NO (Lock Monitor) - - Spring Lock - HS5L - 127mm
RS庫存編號 147-534
製造零件編號GKMD03
BrandHoneywell
HK$672.44
單位
M12 Key 1NC/1NO Glass Filled PET 50V 50V 1NC/1NO - - - 2 GKM - 16mm
RS庫存編號 820-3519
製造零件編號GKMC03
BrandHoneywell
HK$839.09
單位
M12 Key 1NC/1NO Glass Filled PET 240V 250V - - Yes - 2 GKM - 16mm
RS庫存編號 133-0073
製造零件編號XCSDMP70010
HK$873.25
單位
10m Pre-Cabled - - Plastic - - 3NC/NO Preventa Yes - - XCSDMP - 88mm
RS庫存編號 179-4750
製造零件編號HS6E-L44B05-G
BrandIdec
HK$1,615.73
單位
Cable Key 1NC/1NC (Main), 1NO (Lock Monitor), 2NC (Door Monitor) - 250V 30V 1NC+1NC (Main), 1NO (Lock Monitor), 2NC (Door Monitor) - - Spring Lock - HS6E - 75mm
RS庫存編號 185-7247
製造零件編號M-ISP-25 (A101)
BrandIDEM
HK$1,602.63
單位
M4 Screw Key - Stainless Steel 750V - - - - Interlock - M-ISP - 180mm
RS庫存編號 252-3763
製造零件編號XCSA511
HK$983.84
單位
Screw Key 1NC/2NO Zamak 240V 250V 1NC/2NO Preventa - - 8 XCSA - 44mm
RS庫存編號 754-8281
製造零件編號3SE5122-1QV10
BrandSiemens
HK$772.89
單位
M20 Key 2NC/1NO Metal 230V 24V 1NC Sirius - - 5 3SE5 2NO 37.8mm
RS庫存編號 130-0881
製造零件編號XY2CE4A010
HK$1,459.50
單位
- - NC, NO Stainless Steel (Cover), Zamak (Body) 240V 250V - Preventa XY2 - - - XY2CE - 142mm