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. 617-5065
Mfr. Part No.AZM 161SK-12/12RK-024
BrandSchmersal
SGD435.90
Each
units
- AZM 161 - - Power to Unlock No - 24 V ac/dc Various Options 4NC M16 90mm Plastic 30mm
RS Stock No. 741-8685
Mfr. Part No.AZM 170-02ZRKA 24 VAC/DC
BrandSchmersal
SGD329.67
Each
units
- AZM 170 - - Power to Lock No - 24 V ac/dc Various Options 2NC 1/2 NPT 30mm Plastic 90mm
RS Stock No. 617-5087
Mfr. Part No.AZM 161SK-12/12RKA-024
BrandSchmersal
SGD360.93
Each
units
- AZM 161 - - Power to Lock No - 24 V ac/dc Various Options 4NC M16 90mm Plastic 30mm
RS Stock No. 617-5122
Mfr. Part No.AZM415-11/11 ZPKE 24VAC/DC-M20
BrandSchmersal
SGD694.27
Each
units
- AZM 415 - - Power to Unlock No - 24 V ac/dc Various Options 2NC 1/2 NPT 100mm Metal 46.5mm
RS Stock No. 742-0726
Mfr. Part No.AZM 170SK-11/02ZRK-2197 24VAC/DC
BrandSchmersal
SGD461.40
Each
units
- AZM 170 - - Power to Unlock No - 24 V ac/dc Various Options 3NC 1/2 NPT 30mm Plastic 108mm
RS Stock No. 880-1707
Mfr. Part No.AZM300Z-ST-1P2P-A
BrandSchmersal
SGD825.28
Each
units
- AZM 300 - - Power to Lock No - 24 V dc Various Options 2 PNP 1/2 NPT 85mm Plastic 100mm
RS Stock No. 880-1779
Mfr. Part No.AZM 200ST2-T-1P2P
BrandSchmersal
SGD849.34
Each
units
- AZM 200 - - Power to Unlock No - 24 V dc Various Options 2 PNP M12 40mm Plastic 220mm
RS Stock No. 880-1842
Mfr. Part No.EX-AZM 161SK-12/12RK-024-3D
BrandSchmersal
SGD612.57
Each
units
- EX-AZM 161 - - Power to Unlock No - 24 V ac/dc Various Options 2NC/2NO M16 130mm Plastic 114mm
RS Stock No. 617-5100
Mfr. Part No.AZM 161SK-12/12RKA-110/230
BrandSchmersal
SGD380.93
Each
units
- AZM 161 - - Power to Lock No - 110 V ac, 230 V ac Various Options 4NC M16 90mm Plastic 30mm
RS Stock No. 880-1703
Mfr. Part No.AZM300Z-ST-1P2P
BrandSchmersal
SGD809.39
Each
units
- AZM 300 - - Power to Unlock No - 24 V dc Various Options 2 PNP 1/2 NPT 85mm Plastic 100mm
RS Stock No. 880-1775
Mfr. Part No.AZM 200SK-T-1P2PWA
BrandSchmersal
SGD691.18
Each
units
- AZM 200 - - Power to Lock No - 24 V dc Various Options 2 PNP M12 40mm Plastic 220mm
RS Stock No. 741-8691
Mfr. Part No.AZM 170-11ZRK 24 VAC/DC
BrandSchmersal
SGD279.13
Each
units
- AZM 170 - - Power to Unlock No - 24 V ac/dc Various Options 1NC 1/2 NPT 30mm Plastic 90mm
RS Stock No. 742-0701
Mfr. Part No.AZM 170-11ZRKA 24 VAC/DC
BrandSchmersal
SGD342.14
Each
units
- AZM 170 - - Power to Lock No - 24 V ac/dc Various Options 1NC 1/2 NPT 30mm Plastic 90mm
RS Stock No. 146-5799
Mfr. Part No.AZM170-11ZRIA-B1 24VAC/DC
BrandSchmersal
SGD437.73
Each
units
- AZM 170 DP - Power to Lock Yes - 24 V ac/dc Coded 1NO M20 90mm Plastic 84mm
RS Stock No. 741-8681
Mfr. Part No.AZM 170-02ZRK 230 VAC
BrandSchmersal
SGD352.40
Each
units
- AZM 170 - - Power to Unlock No - 230 V ac Various Options 2NC M20 30mm Plastic 90mm
RS Stock No. 617-5144
Mfr. Part No.AZM415-11/11 ZPKE 110VAC-M20
BrandSchmersal
SGD694.27
Each
units
- AZM 415 - - Power to Unlock No - 110 V ac Various Options 2NC 1/2 NPT 100mm Metal 46.5mm
RS Stock No. 146-5796
Mfr. Part No.AZM161SK-12/12RIA-024-B1
BrandSchmersal
SGD462.00
Each
units
- AZM 161 3P - Power to Lock Yes - 24 V ac/dc Coded 4NC M20 130mm Plastic 90mm
RS Stock No. 880-1719
Mfr. Part No.AZM300Z-I2-ST-1P2PA
BrandSchmersal
SGD884.07
Each
units
- AZM 300 - - Power to Lock No - 24 V dc Various Options 2 PNP 1/2 NPT 85mm Plastic 100mm
RS Stock No. 617-5138
Mfr. Part No.AZM415-11/11 ZPKE 230VAC-M20
BrandSchmersal
SGD694.27
Each
units
- AZM 415 - - Power to Unlock No - 230 V ac Various Options 2NC 1/2 NPT 100mm Metal 46.5mm
RS Stock No. 880-1851
Mfr. Part No.EX-AZM 161SK-12/12RKA-024-3D
BrandSchmersal
SGD612.57
Each
units
- EX-AZM 161 - - Power to Lock No - 24 V ac/dc Various Options 2NC/2NO M16 130mm Plastic 114mm