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. 279-6400
FabrikantnummerXCSTA791
46,60 €
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Screw Key 2NC/1NO Glass Fibre Reinforced PA 240V 250V 2NC/1NO Preventa - - 8 XCSTA - 30mm
RS-stocknr. 350-074
Fabrikantnummer440K-B04025
175,00 €
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M20 Key 2NC/1NO Metal 500V 250V 2NC Centurion Yes - 1 440K 1NO 40.5mm
RS-stocknr. 746-7295
FabrikantnummerD4NS-4BF
FabrikantOmron
23,21 €
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Screw Key 2NC Plastic - - - - - - 4 D4NS - 30.6mm
RS-stocknr. 284-0771
FabrikantnummerXCSTA792
46,60 €
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Screw Key 2NC/1NO Glass Fibre Reinforced PA 240V 250V 2NC/1NO Preventa - - 8 XCSTA - 30mm
RS-stocknr. 826-3886
Fabrikantnummer208019
FabrikantIDEM
266,78 €
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Cable Key 2NC Stainless Steel 240V - 2NC Kobra - - 4 K-SS-Ex - 37.5mm
RS-stocknr. 378-1645
Fabrikantnummer440K-MT55001
87,90 €
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M20 Key 2NC/1NO Painted Zinc 500V 250V 2NC MT-GD2 - - 8 440K 1NO 116.5mm
RS-stocknr. 263-3696
FabrikantnummerXCSC702
134,00 €
Each
Aantal stuks
Screw Key 2NC/1NO Zamak 240V 250V 2NC/1NO Preventa - - 8 XCSC - 44mm
RS-stocknr. 351-3975
Fabrikantnummer440K-T11147
56,50 €
Each
Aantal stuks
M20 Key 2NC/1NO Glass Filled PBT 240V 24V 2NC Trojan 5 - - 4 440K 1NO 52mm
RS-stocknr. 301-9956
FabrikantnummerXCSTA592
46,60 €
Each
Aantal stuks
Screw Key 1NC/2NO Glass Fibre Reinforced PA 240V 250V 1NC/2NO Preventa - - 8 XCSTA - 30mm
RS-stocknr. 307-6167
FabrikantnummerD4BS-1AFS
FabrikantOmron
48,14 €
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PG 13.5 Key 2NC Plastic 400V - 2NC - - - 4 D4BS - 43mm
RS-stocknr. 512-5671
Fabrikantnummer440K-C21098
42,90 €
Each
Aantal stuks
M16 Key 2NC/1NO Glass Filled PBT 600V 600V 2NC Cadet 3 Yes - 8 440K 1NO 30.4mm
RS-stocknr. 724-3695
FabrikantnummerAZ 3350-12ZUEK-U90
FabrikantSchmersal
80,18 €
Each
Aantal stuks
Screw Key 2NC/1NO Aluminium 230V 24V 2NC - Yes - 4 AZ3350 1NO 38mm
RS-stocknr. 623-3098
FabrikantnummerAZ 17-11ZK
FabrikantSchmersal
31,90 €
Each
Aantal stuks
M16 Key 1NC/1NO Glass Fibre Reinforced Thermoplastic 230V 24V 1NC - - - 4 AZ17 1NO 30mm
RS-stocknr. 861-4650
FabrikantnummerD4NS-2CF
FabrikantOmron
25,49 €
Each
Aantal stuks
G1/2 Key 2NC/1NO Plastic 240V 250V - - Yes - 4 D4NS - 96mm
RS-stocknr. 873-2247
Fabrikantnummer440K-C21067
82,50 €
Each
Aantal stuks
M12 Key 2NC/1NO Glass Filled PBT 600V 24V 2NC Cadet 3 Yes - 8 440K 1NO 30.4mm
RS-stocknr. 512-5687
Fabrikantnummer440K-C21096
45,10 €
Each
Aantal stuks
M16 Key 2NC Glass Filled PBT 600V 600V 2NC Cadet 3 Yes - 8 440K - 30.4mm
RS-stocknr. 836-2766
FabrikantnummerD4NS1FF
FabrikantOmron
23,61 €
Each
Aantal stuks
PG 13.5 Key 2NC/1NO Plastic 240V 250V - - No - 4 D4NS - 30.6mm
RS-stocknr. 251-2016
Fabrikantnummer440K-T11118
51,20 €
Each
Aantal stuks
M20 Key 2NC/1NO Glass Filled PBT 240V 24V 2NC Trojan 5 Yes - 4 440K 1NO 52mm
RS-stocknr. 394-7542
Fabrikantnummer440T-MRPSE100B
195,00 €
Each
Aantal stuks
- - 4NO Stainless Steel - - - Prosafe - - 1 440T - -
RS-stocknr. 296-4675
FabrikantnummerXCSPA792
39,10 €
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Aantal stuks
Screw Key 2NC Glass Fibre Reinforced PA 240V 250V 2NC Preventa - - 8 XCSPA - 30mm
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