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 Stock No. 826-3925
Mfr. Part No.200013F
BrandIDEM
kr 413,07
Each
Units
M20 Key 4NC Polyester 240V - 4NC Kobra Yes - 4 KP - 34.5mm
RS Stock No. 153-141
Mfr. Part No.GKNC21
BrandHoneywell
kr 539,99
Each
Units
M20 Key 2NC/1NO Glass Filled PET 600V 250V 2NC/1NO - - - 4 GKN - 33mm
RS Stock No. 189-5299
Mfr. Part No.6018200001
kr 1 196,31
Each
Units
Screw - NC/NO (Guard Lock), NC/NO (Inter Lock) Glass Fibre Reinforced Thermoplastic 24V 24V NC/NO (Guard Lock), NC/NO (Inter Lock) - Yes Guard Lock, Inter Lock - SLC - 44mm
RS Stock No. 826-3921
Mfr. Part No.200007
BrandIDEM
kr 377,27
Each
Units
M20 Key 3NC/1NO Polyester 240V - 3NC Kobra - - 4 KP 1NO 34.5mm
RS Stock No. 826-3919
Mfr. Part No.200001
BrandIDEM
kr 284,32
Each
Units
M20 Key 2NC/1NO Polyester 240V - 2NC Kobra - - 4 KP 1NO 34.5mm
RS Stock No. 284-0771
Mfr. Part No.XCSTA792
kr 464,60
Each
Units
Screw Key 2NC/1NO Glass Fibre Reinforced PA 240V 250V 2NC/1NO Preventa - - 8 XCSTA - 30mm
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