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
RS-artikelnummer 394-7564
Tillv. art.nr440T-MSBLE100A
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RS-artikelnummer 549-619
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M20 Key 2NC/1NO Plastic 240V 250V 2NC/1NO - - - 4 D4NS - 30mm
RS-artikelnummer 179-4721
Tillv. art.nrHS1L-DQ44KMSR-R
VarumärkeIdec
2 780,20 kr
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G1/2 Key 1NC/1NC (Main), 1NO (Door Monitor), 1NO (Lock Monitor) - 250V 30V 1NC+1NC/1NC+1NC (Main), 1NO (Door Monitor), 1NO (Lock Monitor) - - Spring Lock - HS1L - 129mm
RS-artikelnummer 147-534
Tillv. art.nrGKMD03
VarumärkeHoneywell
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M12 Key 1NC/1NO Glass Filled PET 50V 50V 1NC/1NO - - - 2 GKM - 16mm
RS-artikelnummer 179-4748
Tillv. art.nrHS6B-03B05
VarumärkeIdec
801,09 kr
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Cable - 3NC - 250V 30V 3NC - - Interlock - HS6B - 87mm
RS-artikelnummer 185-7258
Tillv. art.nrM-TS (D401)
VarumärkeIDEM
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M6 Screw Key - Die Cast Metal, Stainless Steel - - - - - Interlock 2 M-TS - 109mm
RS-artikelnummer 330-0713
Tillv. art.nr440K-T11205
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M12 Key 2NC/1NO Glass Filled PBT 240V 24V 2NC Trojan 5 Yes - 4 440K 1NO 52mm
RS-artikelnummer 183-6013
Tillv. art.nr440T-AKEYE100D
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- Key - - - - - - - - - 440T - -
RS-artikelnummer 623-2972
Tillv. art.nrAZ15ZVRK-M20-2254
VarumärkeSchmersal
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M20 Key 1NC Glass Fibre Reinforced Thermoplastic 230V 24V 1NC - - - 3 AZ15 - 75mm
RS-artikelnummer 410-7206
Tillv. art.nrSKI-U1Z M3
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Screw Key 1NC/1NO Glass Fibre Reinforced Thermoplastic 240V - 1NC/1NO - Yes - 4 SKI - 30.5mm
RS-artikelnummer 277-2123
Tillv. art.nr440K-H11145
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M20 Key 2NC Glass Filled PBT 240V 250V 2NC Trojan 5-EX Yes - 4 440K - 52mm
RS-artikelnummer 263-3646
Tillv. art.nrXCSA722
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Screw Key 2NC/1NO Zamak 240V 250V 2NC/1NO Preventa - - 8 XCSA - 44mm
RS-artikelnummer 724-3695
Tillv. art.nrAZ 3350-12ZUEK-U90
VarumärkeSchmersal
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Screw Key 2NC/1NO Aluminium 230V 24V 2NC - Yes - 4 AZ3350 1NO 38mm
RS-artikelnummer 394-7457
Tillv. art.nr440T-MSALE100A
2 113,62 kr
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M5 Key - Stainless Steel - - - Prosafe Yes - 1 440T - 34mm
RS-artikelnummer 183-6020
Tillv. art.nr440T-MRKSE110C
2 984,12 kr
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M4 Key 2NC, 2NO Stainless Steel - - 2NC, 2NO - Yes Interlock - 440T 2NC, 2NO 143mm
RS-artikelnummer 766-1598
Tillv. art.nrXCSB502
1 189,10 kr
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- - 2NO/NC Zamak 240V 250V 2NO/NC Preventa Yes - - XCSB - 44mm
RS-artikelnummer 185-7262
Tillv. art.nrM-BS (A101)
VarumärkeIDEM
1 706,08 kr
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M6 Screw Key - Die Cast Metal, Stainless Steel - - - - Yes Interlock - M-BS - 109mm
RS-artikelnummer 666-4938
Tillv. art.nrXCSA502EX
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Screw Key 1NC/2NO Zamak 240V 250V 1NC/2NO Preventa - - 8 XCSA - 44mm
RS-artikelnummer 179-4720
Tillv. art.nrHS1L-DQ44KMSR-G
VarumärkeIdec
2 780,20 kr
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G1/2 Key 1NC/1NC (Main), 1NO (Door Monitor), 1NO (Lock Monitor) - 250V 30V 1NC+1NC/1NC+1NC (Main), 1NO (Door Monitor), 1NO (Lock Monitor) - - Spring Lock - HS1L - 129mm
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