Solenoid Interlock Switches

Solenoid interlock switches allow guards or gates to be securely locked while dangerous processes are in operation. They require an internal solenoid to be energised before the guard can be opened and remain locked until all equipment has ceased moving.

What are solenoid interlock switches used for?

Solenoid interlock switches are widely used in machinery where an interruption could cause damage. This kind of switch mechanism is crucial when operating machinery where the hazard continues even after power supply to a device is stopped, for example when using circular saw blades. Solenoid interlock switches are also used where there is regular entry to dangerous areas, such as high temperature or pressurised sites.

How do solenoid interlock switches work?

Solenoid interlock switches are operated by magnetic force and respond when a guard opens. A machine can't start until the switch's guard is closed and locked, and it will hold the guard closed until dangerous processes are complete. Interlock switches use positive opening safety contacts for high reliability and can only be operated with one of the keys provided.


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Description Price Range Series Pole Configuration Normal State Configuration Power to Lock / Unlock Actuator Included Actuator Type Conduit Entry Length Width Depth Supply Voltage Maximum AC Voltage Auxiliary Contacts
RS Stock No. 820-3780
Mfr. Part No.D4SLN4NDGD
BrandOmron
TWD6,871.00
Each
units
- D4SL-N - - Power to Lock No Various Options M20 39mm 39mm 179.9mm 24 V dc - 2NC/1NO
RS Stock No. 609-6748
Mfr. Part No.XCSE8311
TWD13,763.00
Each
units
Preventa XCS-E - - Power to Unlock Yes Key PG13.5 98mm 44mm 146mm 24 V ac/dc - -
RS Stock No. 739-0628
Mfr. Part No.XCSLF3838312
TWD7,449.00
Each
units
Preventa XCS-LF - - Power to Unlock Yes Key M20 205mm 51mm 43.5mm 24 V ac/dc - -
RS Stock No. 763-6996
Mfr. Part No.3SE5322-1SG21
BrandSiemens
TWD10,385.00
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 24 V dc - 1NO
RS Stock No. 880-1707
Mfr. Part No.AZM300Z-ST-1P2P-A
BrandSchmersal
TWD17,894.00
Each
units
- AZM 300 - - Power to Lock No Various Options 1/2 NPT 85mm 100mm 35mm 24 V dc - 1 PNP
RS Stock No. 397-2217
Mfr. Part No.XCSE7341
TWD13,221.00
Each
units
Preventa XCS-E - - Power to Unlock Yes Key PG13.5 98mm 44mm 146mm 230 V ac - -
RS Stock No. 826-3953
Mfr. Part No.221301
BrandIDEM
TWD5,051.00
Each
units
LEILOCK KL1-P - - Power to Unlock No Various Options M20 143mm 63mm 41.5mm 24 V ac/dc - 1NO
RS Stock No. 862-1699
Mfr. Part No.D4SL-N4QFA-D
BrandOmron
TWD6,241.00
Each
units
- D4SL-N - - Power to Unlock No Various Options M20 39mm 179.5mm 39mm 24 V dc - 2NC/1NO
RS Stock No. 880-1775
Mfr. Part No.AZM 200SK-T-1P2PWA
BrandSchmersal
TWD15,281.00
Each
units
- AZM 200 - - Power to Lock No Various Options M12 40mm 220mm 50mm 24 V dc - 1 PNP
RS Stock No. 749-7694
Mfr. Part No.3SE5322-1SB21
BrandSiemens
TWD7,844.00
Each
units
Sirius 3SE5 - - Power to Unlock No Various Options M20 184.1mm 54mm 39.1mm 230 V ac - 1NO
RS Stock No. 880-1785
Mfr. Part No.AZM 200ST2-T-SD2PA
BrandSchmersal
TWD20,001.00
Each
units
- AZM 200 - - Power to Lock No Various Options M12 40mm 220mm 20mm 24 V dc - -
RS Stock No. 820-3796
Mfr. Part No.D4SLN4QDAD
BrandOmron
TWD6,871.00
Each
units
- D4SL-N - - Power to Unlock No Various Options M20 39mm 39mm 179.9mm 24 V dc - 2NC/1NO
RS Stock No. 252-3814
Mfr. Part No.XCSE5341
TWD12,292.00
Each
units
Preventa XCS-E - - Power to Unlock Yes Key PG13.5 98mm 44mm 146mm 230 V ac - -
RS Stock No. 820-3787
Mfr. Part No.D4SLN4PDGD
BrandOmron
TWD10,539.00
Each
units
- D4SL-N - - Power to Lock No Various Options M20 39mm 39mm 179.9mm 24 V dc - 3NC
RS Stock No. 301-9984
Mfr. Part No.XCSTE7312
TWD6,168.00
Each
units
Preventa XCS-TE - - Power to Unlock - - M16 93.5mm 33mm 110mm 24 V ac/dc - NC
RS Stock No. 397-2201
Mfr. Part No.XCSE7331
TWD14,456.00
Each
units
Preventa XCS-E - - Power to Unlock Yes Key PG13.5 98mm 44mm 146mm 110/120 V ac - -
RS Stock No. 814-7084
Mfr. Part No.XCSE8313
TWD14,794.00
Each
units
Preventa XCS-E - - Power to Unlock Yes Key 1/2 NPT 146mm 98mm 44mm 24 V ac/dc - -
RS Stock No. 123-7511
Mfr. Part No.201021
BrandIDEM
TWD5,890.00
Each
units
SEZYLOCK KLP-P2L - - Power to Lock No Various Options M20 46mm 160mm 45.5mm 24 V dc - NC/NO
RS Stock No. 178-3144
Mfr. Part No.8 10 BJ 28
BrandMecalectro
TWD5,782.00
Each
units
- - - - Power to Lock No Various Options - 65mm 30mm 30mm 24 V dc - -
RS Stock No. 136-3174
Mfr. Part No.6018119045
TWD6,910.00
Each
units
- SLK DP - Power to Unlock No Various Options M20 42.5mm 51mm 184mm 24 V ac/dc 24V NC/NO