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 Housing Material Maximum AC Voltage Maximum DC Voltage Safety Contacts Range Actuator Included Lock Type Number of Head Directions Series Auxiliary Contacts Depth
RS-stocknr. 277-2123
Fabrikantnummer440K-H11145
277,00 €
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Aantal stuks
M20 Key 2NC Glass Filled PBT 240V 250V 2NC Trojan 5-EX Yes - 4 440K - 52mm
RS-stocknr. 252-3864
FabrikantnummerXCSPA591
38,70 €
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- Key 1NC/1NO Polyamide 240V 250V - Preventa - - 8 XCSPA - 30mm
RS-stocknr. 427-1127
Fabrikantnummer440K-C21061
44,30 €
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M16 Key 2NC/1NO Glass Filled PBT 600V 600V 2NC Cadet 3 Yes - 8 440K 1NO 30.4mm
RS-stocknr. 623-3076
FabrikantnummerAZ16-12ZVRK-M20-2254
FabrikantSchmersal
34,10 €
Each
Aantal stuks
M20 Key 2NC/1NO Glass Fibre Reinforced Thermoplastic 230V 24V 2NC - - - 3 AZ16 1NO 30mm
RS-stocknr. 757-9231
FabrikantnummerD4NS-1BF
FabrikantOmron
22,66 €
Each
Aantal stuks
Screw Key 2NC Plastic 240V 250V - - - - 4 D4NS - 30mm
RS-stocknr. 305-1966
FabrikantnummerXCSPA791
38,70 €
Each
Aantal stuks
Screw Key 2NC Glass Fibre Reinforced PA 240V 250V - Preventa - - 8 XCSPA - 30mm
RS-stocknr. 826-3880
Fabrikantnummer208026
FabrikantIDEM
348,47 €
Each
Aantal stuks
Cable Key 2NC/2NO Stainless Steel 240V - 2NC/1NO Kobra - - 4 K-SS-Ex 1NO 37.5mm
RS-stocknr. 746-7292
FabrikantnummerD4NS-4AF
FabrikantOmron
22,66 €
Each
Aantal stuks
Screw Key 1NC/1NO Plastic - - - - - - 4 D4NS - 30.6mm
RS-stocknr. 410-7206
FabrikantnummerSKI-U1Z M3
FabrikantBernstein AG
31,26 €
Each
Aantal stuks
Screw Key 1NC/1NO Glass Fibre Reinforced Thermoplastic 240V - 1NC/1NO - Yes - 4 SKI - 30.5mm
RS-stocknr. 744-8673
Fabrikantnummer570230
FabrikantPilz
30,97 €
Each
Aantal stuks
Screw Key 1NC/1NO Glass Fibre Reinforced Thermoplastic 240V - 2NC/1NO PSENmech Yes - 4 - - 33mm
RS-stocknr. 211-1499
FabrikantnummerAZ 17-11ZI-B5
FabrikantSchmersal
53,80 €
Each
Aantal stuks
M16 Key 1NC/1NO Glass Fibre Reinforced Thermoplastic 230V 24V 1NC - - - 4 AZ17 1NO 85mm
RS-stocknr. 394-7457
Fabrikantnummer440T-MSALE100A
219,00 €
Each
Aantal stuks
M5 Key - Stainless Steel - - - Prosafe Yes - 1 440T - 34mm
RS-stocknr. 549-552
FabrikantnummerD4NS-4DF
FabrikantOmron
23,19 €
Each
Aantal stuks
M20 Key 3NC Plastic 240V 250V 3NC - - - 4 D4NS - 30mm
RS-stocknr. 279-6393
FabrikantnummerXCSTA591
46,60 €
Each
Aantal stuks
Screw Key 1NC/2NO Glass Fibre Reinforced PA 240V 250V 1NC/2NO Preventa - - 8 XCSTA - 30mm
RS-stocknr. 826-3919
Fabrikantnummer200001
FabrikantIDEM
28,80 €
Each
Aantal stuks
M20 Key 2NC/1NO Polyester 240V - 2NC Kobra - - 4 KP 1NO 34.5mm
RS-stocknr. 362-2782
FabrikantnummerAZ16-12ZI-B1-M20
FabrikantSchmersal
66,18 €
Each
Aantal stuks
M20 Key 2NC/1NO Glass Fibre Reinforced Thermoplastic 230V 24V 2NC - Yes - 3 AZ16 1NO 30mm
RS-stocknr. 263-3624
FabrikantnummerXCSA702
90,20 €
Each
Aantal stuks
Screw Key 2NC/1NO Zamak 240V 250V 2NC/1NO Preventa - - 8 XCSA - 44mm
RS-stocknr. 792-3089
Fabrikantnummer440K-T11338
69,50 €
Each
Aantal stuks
M20 Key 2NC/1NO Glass Filled PBT 240V 24V 2NC Trojan 5 Yes - 4 440K 1NO 52mm
RS-stocknr. 178-181
Fabrikantnummer440K-T11090
51,20 €
Each
Aantal stuks
M20 Key 2NC/1NO Glass Filled PBT 240V 24V 2NC Trojan 5 Yes - 4 440K 1NO 52mm
RS-stocknr. 296-4669
FabrikantnummerXCSPA592
38,70 €
Each
Aantal stuks
Screw Key 1NC/1NO Glass Fibre Reinforced PA 240V 250V 1NC/1NO Preventa - - 8 XCSPA - 30mm
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