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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Omschrijving Prijs Connection Type Lock Style Normal State Configuration Lock Type Actuator Included Housing Material Maximum AC Voltage Safety Contacts Maximum DC Voltage Range IP Rating Number of Head Directions Series Auxiliary Contacts
RS-stocknr. 178-181
Fabrikantnummer440K-T11090
€ 53,40
Each
Aantal stuks
M20 Key 2NC/1NO Interlock Yes Glass Filled PBT 240V 2NC 24V Trojan 5 IP67 4 440K 1NO
RS-stocknr. 351-3975
Fabrikantnummer440K-T11147
€ 58,90
Each
Aantal stuks
M20 Key 2NC/1NO Interlock - Glass Filled PBT 240V 2NC 24V Trojan 5 IP67 4 440K 1NO
RS-stocknr. 549-552
FabrikantnummerD4NS-4DF
FabrikantOmron
€ 23,54
Each
Aantal stuks
M20 Key 3NC - - Plastic 240V 3NC 250V - IP67 4 D4NS -
RS-stocknr. 483-3567
Fabrikantnummer440K-E33040
€ 39,00
Each
Aantal stuks
M16 Key 1NC/1NO Interlock Yes Glass Filled PBT 600V 1NC 600V Elf IP67 8 440K 1NO
RS-stocknr. 623-3054
FabrikantnummerAZ16-12ZVRK-M20
FabrikantSchmersal
€ 31,21
Each
Aantal stuks
M20 Key 2NC/1NO - - Glass Fibre Reinforced Thermoplastic 230V 2NC 24V - IP67 3 AZ16 1NO
RS-stocknr. 427-1127
Fabrikantnummer440K-C21061
€ 46,20
Each
Aantal stuks
M16 Key 2NC/1NO Interlock Yes Glass Filled PBT 600V 2NC 600V Cadet 3 IP67 8 440K 1NO
RS-stocknr. 744-8660
Fabrikantnummer570220
FabrikantPilz
€ 31,33
Each
Aantal stuks
Screw Key 2NC - Yes Glass Fibre Reinforced Thermoplastic 240V 2NC - PSENmech IP65 4 - -
RS-stocknr. 625-0374
FabrikantnummerAZ15ZVRK-M20
FabrikantSchmersal
€ 24,70
Each
Aantal stuks
M20 Key 1NC - - Glass Fibre Reinforced Thermoplastic 230V 1NC 24V - IP67 3 AZ15 -
RS-stocknr. 698-8723
FabrikantnummerEX-AZ16-12ZVRK-M20-3D
FabrikantSchmersal
€ 50,33
Each
Aantal stuks
Screw Key 2NC/1NO - - Glass Fibre Reinforced Thermoplastic 230V 2NC 24V - IP67 3 EX-AZ16 1NO
RS-stocknr. 252-3864
FabrikantnummerXCSPA591
€ 39,10
Each
Aantal stuks
- Key 1NC/1NO - - Polyamide 240V - 250V Preventa IP67 8 XCSPA -
RS-stocknr. 814-7006
FabrikantnummerXCSE7313
€ 393,00
Each
Aantal stuks
Cable Key 2NC/1NO - Yes Zamak 240V 1NC/1NO 250V Preventa IP67 8 XCSE -
RS-stocknr. 744-8673
Fabrikantnummer570230
FabrikantPilz
€ 32,63
Each
Aantal stuks
Screw Key 1NC/1NO - Yes Glass Fibre Reinforced Thermoplastic 240V 2NC/1NO - PSENmech IP65 4 - -
RS-stocknr. 746-7292
FabrikantnummerD4NS-4AF
FabrikantOmron
€ 23,01
Each
Aantal stuks
Screw Key 1NC/1NO - - Plastic - - - - - 4 D4NS -
RS-stocknr. 489-4887
Fabrikantnummer440K-E33041
€ 39,00
Each
Aantal stuks
M16 Key 2NC Interlock Yes Glass Filled PBT 600V 2NC 600V Elf IP67 8 440K -
RS-stocknr. 623-2988
FabrikantnummerAZ16ZVRK-M20
FabrikantSchmersal
€ 26,58
Each
Aantal stuks
M20 Key 1NC/1NO - - Glass Fibre Reinforced Thermoplastic 230V 1NC 24V - IP67 3 AZ16 1NO
RS-stocknr. 623-2972
FabrikantnummerAZ15ZVRK-M20-2254
FabrikantSchmersal
€ 24,90
Each
Aantal stuks
M20 Key 1NC - - Glass Fibre Reinforced Thermoplastic 230V 1NC 24V - IP67 3 AZ15 -
RS-stocknr. 362-2782
FabrikantnummerAZ16-12ZI-B1-M20
FabrikantSchmersal
€ 47,97
Each
Aantal stuks
M20 Key 2NC/1NO - Yes Glass Fibre Reinforced Thermoplastic 230V 2NC 24V - IP67 3 AZ16 1NO
RS-stocknr. 826-3921
Fabrikantnummer200007
FabrikantIDEM
€ 38,35
Each
Aantal stuks
M20 Key 3NC/1NO - - Polyester 240V 3NC - Kobra IP67 4 KP 1NO
RS-stocknr. 820-3507
FabrikantnummerGKMB33
FabrikantHoneywell
€ 72,63
Each
Aantal stuks
Cable Key 1NC/1NO - Yes Glass Filled PET 240V - 250V - IP66, IP67 2 GKM -
RS-stocknr. 742-0748
FabrikantnummerAZ 3350-12ZUEK
FabrikantSchmersal
€ 67,33
Each
Aantal stuks
Screw Key 2NC/1NO - Yes Aluminium 230V 2NC 24V - IP67 4 AZ3350 1NO