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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Beskrivning Pris 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
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M20 Key 1NC/1NC Metal (Head) 250V 30V 1NC+1NC - - Spring Lock - HS5L - 127mm
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M20 Key 2NC/1NO Glass Filled PBT 240V 24V 2NC Trojan 5 - - 4 440K 1NO 52mm
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Tillv. art.nrGKBC1L7
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M20 Key 1NC/1NO Glass Filled PET 600V 250V 1NC - Yes - 2 GKB 1NO 42.6mm
RS-artikelnummer 179-4736
Tillv. art.nrHS5D-12ZRN
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G1/2 Handle 1NO/2NC Metal (Head) 250V 30V 1NO+2NC - - Interlock - HS5D - 91mm
RS-artikelnummer 185-7263
Tillv. art.nrM-BS (A102)
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M6 Screw Key - Die Cast Metal, Stainless Steel - - - - Yes Interlock - M-BS - 109mm
RS-artikelnummer 185-7258
Tillv. art.nrM-TS (D401)
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M6 Screw Key - Die Cast Metal, Stainless Steel - - - - - Interlock 2 M-TS - 109mm
RS-artikelnummer 183-6015
Tillv. art.nr440T-MDALE100C0D
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Screw Key - Stainless Steel - - - - Yes Interlock - 440T - 27.4mm
RS-artikelnummer 814-7006
Tillv. art.nrXCSE7313
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Cable Key 2NC/1NO Zamak 240V 250V 1NC/1NO Preventa Yes - 8 XCSE - 44mm
RS-artikelnummer 185-7260
Tillv. art.nrM-KE-NS3 (A101, B201, C301)
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M6 Screw Key - Die Cast Metal, Stainless Steel - - - - - Interlock - M-KE - 109mm
RS-artikelnummer 820-3519
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M12 Key 1NC/1NO Glass Filled PET 240V 250V - - Yes - 2 GKM - 16mm
RS-artikelnummer 136-3173
Tillv. art.nr6016469066
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Screw Key 2NC PBT 240V 250V - - Yes - 4 SKT - 83mm
RS-artikelnummer 623-3082
Tillv. art.nrAZ 17-11ZRK
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M16 Key 1NC/1NO Glass Fibre Reinforced Thermoplastic 230V 24V 1NC - - - 4 AZ17 1NO 30mm
RS-artikelnummer 666-4956
Tillv. art.nrXCSC702EX
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Screw Key 2NC/1NO Zamak 240V 250V 2NC/1NO Preventa - - 8 XCSC - 44mm
RS-artikelnummer 394-7463
Tillv. art.nr440T-MSALE100B
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M5 Key - Stainless Steel - - - Prosafe Yes - 1 440T - 34mm
RS-artikelnummer 189-5314
Tillv. art.nr3911742390
VarumärkeBernstein AG
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M4 Screw - - - - - - - - - - - - 9mm
RS-artikelnummer 826-3915
Tillv. art.nr203007F
VarumärkeIDEM
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M20 Key 3NC/1NO Die Cast Metal 240V - 3NC Kobra Yes - 4 KM 1NO 43.5mm
RS-artikelnummer 179-4749
Tillv. art.nrHS6B-12B05
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Cable - 2NC/1NO - 250V 30V 2NC+1NO - - Interlock - HS6B - 87mm
RS-artikelnummer 183-6017
Tillv. art.nr440T-MKEXE110B0C0C
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- Key - Stainless Steel - - - - - Interlock - 440T - 90mm
RS-artikelnummer 609-6710
Tillv. art.nrXCSB701
1 189,10 kr
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Screw Key 2NC/1NO Zamak 240V 250V 2NC/1NO Preventa - - 8 XCSB - 44mm
RS-artikelnummer 179-4744
Tillv. art.nrHS5L-VA7Y4M-G
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M20 Key 1NC/1NO (Door Monitor), 1NC/1NO (Lock Monitor) Metal (Head) 250V 30V 1NC/1NO (Door Monitor), 1NC/1NO (Lock Monitor) - - Solenoid Lock - HS5L - 127mm
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