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 263-3624
製造零件編號XCSA702
HK$694.86
單位
Screw Key 2NC/1NO Zamak 240V 250V 2NC/1NO Preventa - - 8 XCSA - 44mm
RS庫存編號 623-2972
製造零件編號AZ15ZVRK-M20-2254
BrandSchmersal
HK$273.76
單位
M20 Key 1NC Glass Fibre Reinforced Thermoplastic 230V 24V 1NC - - - 3 AZ15 - 75mm
RS庫存編號 625-0374
製造零件編號AZ15ZVRK-M20
BrandSchmersal
HK$214.33
單位
M20 Key 1NC Glass Fibre Reinforced Thermoplastic 230V 24V 1NC - - - 3 AZ15 - 75mm
RS庫存編號 153-141
製造零件編號GKNC21
BrandHoneywell
HK$653.33
單位
M20 Key 2NC/1NO Glass Filled PET 600V 250V 2NC/1NO - - - 4 GKN - 33mm
RS庫存編號 492-3418
製造零件編號DM1-CLIN-H
BrandFortress
HK$2,380.00
單位
- Key - Die Cast Zinc - - - MGard - CL-D 4 DM1 - 52.19mm
RS庫存編號 623-3098
製造零件編號AZ 17-11ZK
BrandSchmersal
HK$321.96
單位
M16 Key 1NC/1NO Glass Fibre Reinforced Thermoplastic 230V 24V 1NC - - - 4 AZ17 1NO 30mm
RS庫存編號 623-3054
製造零件編號AZ16-12ZVRK-M20
BrandSchmersal
HK$356.78
單位
M20 Key 2NC/1NO Glass Fibre Reinforced Thermoplastic 230V 24V 2NC - - - 3 AZ16 1NO 30mm
RS庫存編號 666-4938
製造零件編號XCSA502EX
HK$2,093.52
單位
Screw Key 1NC/2NO Zamak 240V 250V 1NC/2NO Preventa - - 8 XCSA - 44mm
RS庫存編號 492-3452
製造零件編號DM1-CLIN-H
BrandFortress
HK$2,237.66
單位
- Key - Die Cast Zinc - - - MGard - CL-G 4 DM1 - 52.19mm
RS庫存編號 826-3915
製造零件編號203007F
BrandIDEM
HK$506.33
單位
M20 Key 3NC/1NO Die Cast Metal 240V - 3NC Kobra Yes - 4 KM 1NO 43.5mm
RS庫存編號 623-2988
製造零件編號AZ16ZVRK-M20
BrandSchmersal
HK$282.58
單位
M20 Key 1NC/1NO Glass Fibre Reinforced Thermoplastic 230V 24V 1NC - - - 3 AZ16 1NO 30mm
RS庫存編號 279-6393
製造零件編號XCSTA591
HK$313.14
單位
Screw Key 1NC/2NO Glass Fibre Reinforced PA 240V 250V 1NC/2NO Preventa - - 8 XCSTA - 30mm
RS庫存編號 826-3892
製造零件編號204026
BrandIDEM
HK$2,627.77
單位
Cable Key 2NC/2NO Stainless Steel 250V 250V 2NC/1NO Kobra - - 8 KM-SS-Ex 1NO 44mm
RS庫存編號 179-4721
製造零件編號HS1L-DQ44KMSR-R
BrandIdec
HK$2,513.34
單位
G1/2 Key 1NC/1NC (Main), 1NO (Door Monitor), 1NO (Lock Monitor) - 250V 30V 1NC+1NC/1NC+1NC (Main), 1NO (Door Monitor), 1NO (Lock Monitor) - - Spring Lock - HS1L - 129mm
RS庫存編號 744-8664
製造零件編號570222
BrandPilz
HK$505.42
單位
Screw Key 2NC Glass Fibre Reinforced Thermoplastic 240V - 2NC PSENmech Yes - 4 - - 33mm
RS庫存編號 498-927
製造零件編號3SE5232-0QV40
BrandSiemens
HK$358.30
單位
M20 Key 2NC/1NO Plastic 230V 230V - Sirius - - 5 3SE5 2NC/1NO 33mm
RS庫存編號 179-4722
製造零件編號HS1L-DT44KMSR-G
BrandIdec
HK$2,513.34
單位
G1/2 Key 1NC (Door Monitor), 1NC (Lock Monitor), 1NC/1NC (Main) - 250V 30V 1NC (Door Monitor), 1NC (Lock Monitor), 1NC+1NC/1NC+1NC (Main) - - Spring Lock - HS1L - 129mm
RS庫存編號 263-3668
製造零件編號XCSC512
HK$1,578.72
單位
Screw Key 1NC/2NO Zamak 240V 250V 1NC/2NO Preventa - - 8 XCSC - 44mm
RS庫存編號 176-0045
製造零件編號2TLA042022R3400
BrandABB Jokab
HK$2,516.47
單位
Male M12 - - Anodized Aluminum, Polycarbonate - 24V - Magne - - - - - 35mm
RS庫存編號 179-4732
製造零件編號HS5D-12RN
BrandIdec
HK$392.28
單位
G1/2 Handle 1NO/2NC Plastic (Head) 250V 30V 1NO+2NC - - Interlock - HS5D - 91mm