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$737.18
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$275.06
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$222.92
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 826-3915
製造零件編號203007F
BrandIDEM
HK$508.74
單位
M20 Key 3NC/1NO Die Cast Metal 240V - 3NC Kobra Yes - 4 KM 1NO 43.5mm
RS庫存編號 623-3098
製造零件編號AZ 17-11ZK
BrandSchmersal
HK$321.98
單位
M16 Key 1NC/1NO Glass Fibre Reinforced Thermoplastic 230V 24V 1NC - - - 4 AZ17 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 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 623-2988
製造零件編號AZ16ZVRK-M20
BrandSchmersal
HK$293.91
單位
M20 Key 1NC/1NO Glass Fibre Reinforced Thermoplastic 230V 24V 1NC - - - 3 AZ16 1NO 30mm
RS庫存編號 623-3054
製造零件編號AZ16-12ZVRK-M20
BrandSchmersal
HK$346.01
單位
M20 Key 2NC/1NO Glass Fibre Reinforced Thermoplastic 230V 24V 2NC - - - 3 AZ16 1NO 30mm
RS庫存編號 179-4741
製造零件編號HS5L-DD44M-G
BrandIdec
HK$896.51
單位
M20 Key 1NC/1NC Metal (Head) 250V 30V 1NC+1NC - - Spring Lock - HS5L - 127mm
RS庫存編號 189-5315
製造零件編號3911742391
HK$132.02
單位
- - - - - - - - - - - - - 40mm
RS庫存編號 666-4944
製造零件編號XCSB702EX
HK$2,516.80
單位
Screw Key 2NC/1NO Zamak 240V 250V 2NC/1NO Preventa - - 8 XCSB - 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 179-4751
製造零件編號HS6E-L7Y4B05-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) - - Solenoid Lock - HS6E - 75mm
RS庫存編號 179-4743
製造零件編號HS5L-VA44M-G
BrandIdec
HK$895.60
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 240-8232
製造零件編號D4BS15FS
BrandOmron
HK$519.55
單位
PG 13.5 Key 1NC/1NO Plastic 400V - 1NC/1NO - - - 4 D4BS - 43mm
RS庫存編號 746-7295
製造零件編號D4NS-4BF
BrandOmron
HK$319.84
單位
Screw Key 2NC Plastic - - - - - - 4 D4NS - 30.6mm
RS庫存編號 397-2166
製造零件編號XCSA801
HK$650.00
單位
Screw Key 3NC Zamak 240V 250V 3NC Preventa - - 8 XCSA - 44mm