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 263-3696
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Screw Key 2NC/1NO Zamak 240V 250V 2NC/1NO Preventa - - 8 XCSC - 44mm
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M20 Key 2NC Glass Fibre Reinforced Thermoplastic 230V 24V 2NC - - - 3 AZ16 - 30mm
RS-artikelnummer 296-4675
Tillv. art.nrXCSPA792
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Screw Key 2NC Glass Fibre Reinforced PA 240V 250V 2NC Preventa - - 8 XCSPA - 30mm
RS-artikelnummer 744-8673
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Screw Key 1NC/1NO Glass Fibre Reinforced Thermoplastic 240V - 2NC/1NO PSENmech Yes - 4 - - 33mm
RS-artikelnummer 623-3054
Tillv. art.nrAZ16-12ZVRK-M20
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M20 Key 2NC/1NO Glass Fibre Reinforced Thermoplastic 230V 24V 2NC - - - 3 AZ16 1NO 30mm
RS-artikelnummer 625-0330
Tillv. art.nrAZ16-02ZVRK-M20
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306,20 kr
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M20 Key 2NC Glass Fibre Reinforced Thermoplastic 230V 24V 2NC - - - 3 AZ16 - 30mm
RS-artikelnummer 179-4720
Tillv. art.nrHS1L-DQ44KMSR-G
VarumärkeIdec
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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 183-6023
Tillv. art.nr440T-MRPSE110D
1 962,53 kr
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M4 Key 2NC, 2NO Stainless Steel - - 2NC, 2NO - Yes Interlock - 440T 2NC, 2NO 110mm
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 755-7935
Tillv. art.nr3SE5242-0QV40
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M20 Key 2NC/1NO Plastic 230V 230V 2NC Sirius - - 5 3SE5 1NO 33mm
RS-artikelnummer 181-1199
Tillv. art.nr106817 & LS-02-ZB
VarumärkeEaton
659,71 kr
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Cage Clamp - 2NC Insulated Material 415V 220V 2NC - Yes Spring Lock 1 LS4 ZB - 33.4mm
RS-artikelnummer 426-4472
Tillv. art.nr440K-MT55039
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M20 Key 3NC/1NO Painted Zinc 120V 120V 3NC MT-GD2 - - 8 440K 1NO 40mm
RS-artikelnummer 183-6025
Tillv. art.nr440T-MSALE100D
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Screw Key - Stainless Steel - - - - - Interlock - 440T - 27.4mm
RS-artikelnummer 179-4736
Tillv. art.nrHS5D-12ZRN
VarumärkeIdec
488,87 kr
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G1/2 Handle 1NO/2NC Metal (Head) 250V 30V 1NO+2NC - - Interlock - HS5D - 91mm
RS-artikelnummer 498-921
Tillv. art.nr3SE5232-0RV40
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M20 Key 1NC/1NO Plastic 230V 230V - Sirius - - 5 3SE5 NC/NO 33mm
RS-artikelnummer 185-7263
Tillv. art.nrM-BS (A102)
VarumärkeIDEM
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M6 Screw Key - Die Cast Metal, Stainless Steel - - - - Yes Interlock - M-BS - 109mm
RS-artikelnummer 179-4733
Tillv. art.nrHS5D-12RNM
VarumärkeIdec
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M20 Handle 1NO/2NC Plastic (Head) 250V 30V 1NO+2NC - - Interlock - HS5D - 91mm
RS-artikelnummer 498-915
Tillv. art.nr3SE5112-1QV10
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M20 Key 2NC/1NO Metal - 24V - Sirius - - 5 3SE5 2NC/1NO 37.3mm
RS-artikelnummer 179-4731
Tillv. art.nrHS5D-03ZRNP
VarumärkeIdec
488,87 kr
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PG13.5 Handle 3NC Metal (Head) 250V 30V 3NC - - Interlock - HS5D - 91mm
RS-artikelnummer 179-4737
Tillv. art.nrHS5D-12ZRNM
VarumärkeIdec
488,87 kr
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M20 Handle 1NO/2NC Metal (Head) 250V 30V 1NO+2NC - - Interlock - HS5D - 91mm
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