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. 277-2123
Fabrikantnummer440K-H11145
€ 289,00
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M20 Key 2NC - Yes Glass Filled PBT 240V 2NC 250V Trojan 5-EX IP67 4 440K -
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FabrikantSchmersal
€ 67,33
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Screw Key 2NC/1NO - Yes Aluminium 230V 2NC 24V - IP67 4 AZ3350 1NO
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FabrikantIDEM
€ 275,77
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Cable Key 2NC - - Stainless Steel 240V 2NC - Kobra IP67, IP69K 4 K-SS-Ex -
RS-stocknr. 623-3105
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FabrikantSchmersal
€ 28,87
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M16 Key 2NC - - Glass Fibre Reinforced Thermoplastic 230V 2NC 24V - IP67 4 AZ17 -
RS-stocknr. 625-0330
FabrikantnummerAZ16-02ZVRK-M20
FabrikantSchmersal
€ 26,58
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M20 Key 2NC - - Glass Fibre Reinforced Thermoplastic 230V 2NC 24V - IP67 3 AZ16 -
RS-stocknr. 427-1177
Fabrikantnummer440K-T11303
€ 47,00
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M20 Key 2NC - - Glass Filled PBT 600V 2NC 600V Trojan T15 IP67 4 440K -
RS-stocknr. 147-483
FabrikantnummerGKMA13
FabrikantHoneywell
€ 72,23
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Cable Key 1NC/1NO - - Glass Filled PET 50V 1NC/1NO 50V - IP66, IP67 2 GKM -
RS-stocknr. 549-619
FabrikantnummerD4NS-4CF
FabrikantOmron
€ 23,54
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M20 Key 2NC/1NO - - Plastic 240V 2NC/1NO 250V - IP67 4 D4NS -
RS-stocknr. 698-8729
FabrikantnummerEX-AZ 16-03ZVRK-3D
FabrikantSchmersal
€ 50,33
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Screw Key 3NC/1NO - - Glass Fibre Reinforced Thermoplastic 230V 3NC 24V - IP67 3 EX-AZ16 1NO
RS-stocknr. 263-3595
FabrikantnummerXCSA502
€ 89,40
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Screw Key 1NC/2NO - - Zamak 240V 1NC/2NO 250V Preventa IP67 8 XCSA -
RS-stocknr. 623-3032
FabrikantnummerAZ16-03ZVRK-M20-2254
FabrikantSchmersal
€ 31,21
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M20 Key 3NC - - Glass Fibre Reinforced Thermoplastic 230V 3NC 24V - IP67 3 AZ16 -
RS-stocknr. 394-7457
Fabrikantnummer440T-MSALE100A
€ 225,00
Each
Aantal stuks
M5 Trapped Key - Interlock Yes Stainless Steel - - - Prosafe - 1 440T -
RS-stocknr. 240-8232
FabrikantnummerD4BS15FS
FabrikantOmron
€ 48,00
Each
Aantal stuks
PG 13.5 Key 1NC/1NO - - Plastic 400V 1NC/1NO - - IP67 4 D4BS -
RS-stocknr. 394-7536
Fabrikantnummer440T-MRPSE100A
€ 201,00
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Aantal stuks
- Trapped Key 4NO Interlock - Stainless Steel 1000V - - Prosafe IP20 1 440T -
RS-stocknr. 436-5575
FabrikantnummerSKI-A2Z M3
FabrikantBernstein AG
€ 33,37
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Screw Key 2NC - Yes Glass Fibre Reinforced Thermoplastic 240V 2NC - - IP65 4 SKI -
RS-stocknr. 746-7295
FabrikantnummerD4NS-4BF
FabrikantOmron
€ 23,14
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Aantal stuks
Screw Key 2NC - - Plastic - - - - - 4 D4NS -
RS-stocknr. 251-2016
Fabrikantnummer440K-T11118
€ 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. 397-2150
FabrikantnummerXCSA701
€ 87,00
Each
Aantal stuks
Screw Key 2NC/1NO - - Zamak 240V 2NC/1NO 250V Preventa IP67 8 XCSA -
RS-stocknr. 410-7206
FabrikantnummerSKI-U1Z M3
FabrikantBernstein AG
€ 30,39
Each
Aantal stuks
Screw Key 1NC/1NO - Yes Glass Fibre Reinforced Thermoplastic 240V 1NC/1NO - - IP65 4 SKI -
RS-stocknr. 623-3076
FabrikantnummerAZ16-12ZVRK-M20-2254
FabrikantSchmersal
€ 31,21
Each
Aantal stuks
M20 Key 2NC/1NO - - Glass Fibre Reinforced Thermoplastic 230V 2NC 24V - IP67 3 AZ16 1NO