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 Rated stroke Supply Voltage Actuator Type Safety Contacts Conduit Entry Length Housing Material Width
RS Stock No. 746-7198
Mfr. Part No.D4BL-1CRA
BrandOmron
TWD12,855.00
Each
units
- D4BL - - Power to Unlock - - 24 V dc Various Options 1NC/1NO 1/2 NPT 116.5mm Metal 123.5mm
RS Stock No. 397-2223
Mfr. Part No.XCSTE7311
TWD7,168.00
Each
units
Preventa XCS-TE - - Power to Unlock - - 24 V ac/dc - 2NC PG11 93.5mm Plastic 33mm
RS Stock No. 305-1988
Mfr. Part No.XCSTE5311
TWD9,382.00
Each
units
Preventa XCS-TE - - Power to Unlock - - 24 V ac/dc - 1NO/1NC PG11 93.5mm Plastic 33mm
RS Stock No. 617-5087
Mfr. Part No.AZM 161SK-12/12RKA-024
BrandSchmersal
TWD8,055.00
Each
units
- AZM 161 - - Power to Lock No - 24 V ac/dc Various Options 4NC M16 90mm Plastic 30mm
RS Stock No. 263-3725
Mfr. Part No.XCSE5312
TWD9,260.00
Each
units
Preventa XCS-E - - Power to Unlock Yes - 24 V ac/dc Key 2NO/1NC M20 98mm Metal 44mm
RS Stock No. 397-2188
Mfr. Part No.XCSE7311
TWD28,808.00
Each
units
Preventa XCS-E - - Power to Unlock Yes - 24 V ac/dc Key 1NO/2NC PG13.5 98mm Metal 44mm
RS Stock No. 880-1892
Mfr. Part No.MZM 100 ST2-1P2PWRE-A
BrandSchmersal
TWD24,677.00
Each
units
- MZM 100 - - Power to Lock No - 24 V dc Straight 2 PNP M12 40mm Plastic 179mm
RS Stock No. 741-8685
Mfr. Part No.AZM 170-02ZRKA 24 VAC/DC
BrandSchmersal
TWD6,488.00
Each
units
- AZM 170 - - Power to Lock No - 24 V ac/dc Various Options 2NC 1/2 NPT 30mm Plastic 90mm
RS Stock No. 742-0701
Mfr. Part No.AZM 170-11ZRKA 24 VAC/DC
BrandSchmersal
TWD7,460.00
Each
units
- AZM 170 - - Power to Lock No - 24 V ac/dc Various Options 1NC 1/2 NPT 30mm Plastic 90mm
RS Stock No. 757-9190
Mfr. Part No.D4NL-4AFG-B
BrandOmron
TWD7,099.00
Each
units
- D4NL - - Power to Lock - - 24 V dc Various Options 1NC/1NO 1/2 NPT 95mm Plastic 88.5mm
RS Stock No. 862-1696
Mfr. Part No.D4SL-N4AFA
BrandOmron
TWD8,976.00
Each
units
- D4SL-N - - Power to Unlock No - 24 V dc Various Options 1NC/1NO M20 39mm Metal 179.5mm
RS Stock No. 880-1772
Mfr. Part No.AZM 200SK-T-1P2PW
BrandSchmersal
TWD15,071.00
Each
units
- AZM 200 - - Power to Unlock No - 24 V dc Various Options 2 PNP 1/2 NPT 40mm Plastic 220mm
RS Stock No. 757-9203
Mfr. Part No.D4NL-4EFG-B
BrandOmron
TWD7,290.00
Each
units
- D4NL - - Power to Lock - - 24 V dc Various Options 1NC/1NO M20 95mm Plastic 88.5mm
RS Stock No. 820-3793
Mfr. Part No.D4SLN4RDAD
BrandOmron
TWD6,776.00
Each
units
- D4SL-N - - Power to Unlock No - 24 V dc Various Options 3NC M20 39mm Metal 39mm
RS Stock No. 746-7208
Mfr. Part No.D4BL-1CRA-A
BrandOmron
TWD10,577.00
Each
units
- D4BL - - Power to Unlock - - 24 V dc Various Options 1NC/1NO 1/2 NPT 116.5mm Metal 123.5mm
RS Stock No. 880-1788
Mfr. Part No.AZM 200ST2-T-1P2PW
BrandSchmersal
TWD21,282.00
Each
units
- AZM 200 - - Power to Unlock No - 24 V dc Various Options 2 PNP M12 40mm Plastic 220mm
RS Stock No. 880-1738
Mfr. Part No.AZM300B-ST-1P2P
BrandSchmersal
TWD17,648.00
Each
units
- AZM 300 - - Power to Unlock No - 24 V dc Various Options 2 PNP M12 85mm Plastic 100mm
RS Stock No. 880-1895
Mfr. Part No.MZM 100 ST2-SD2PRE-A
BrandSchmersal
TWD20,556.00
Each
units
- MZM 100 - - Power to Lock No - 24 V dc Straight 2 PNP M12 40mm Plastic 179mm
RS Stock No. 880-1898
Mfr. Part No.MZM 100 ST2-1P2PWREM-A
BrandSchmersal
TWD27,392.00
Each
units
- MZM 100 - - Power to Lock No - 24 V dc Straight 2 PNP M12 40mm Plastic 179mm
RS Stock No. 123-7513
Mfr. Part No.205021
BrandIDEM
TWD10,530.00
Each
units
HYGIELOCK KL3-SS-P2L - - Power to Lock No - 24 V dc Various Options 2NC M20 48mm 316 Stainless Steel 177mm