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 Interface Conduit Entry Length Width Depth Supply Voltage Maximum AC Voltage
RS stock no. 741-8679
Mfr. Part No.AZM 170-02ZRK 24 VAC/DC
BrandSchmersal
R 4,461.41
Each
units
- AZM 170 - - Power to Unlock No Various Options - 1/2 NPT 30mm 90mm 84mm 24 V ac/dc -
RS stock no. 617-5065
Mfr. Part No.AZM 161SK-12/12RK-024
BrandSchmersal
R 5,234.02
Each
units
- AZM 161 - - Power to Unlock No Various Options - M16 90mm 30mm 130mm 24 V ac/dc -
RS stock no. 617-5093
Mfr. Part No.AZM190-02/01RK-24VDC
BrandSchmersal
R 3,894.01
Each
units
- AZM 190 - - Power to Unlock No Various Options - M20 41mm 29.5mm 178mm 24 V dc -
RS stock no. 880-1902
Mfr. Part No.MZM 100 B ST2-SD2PREM-A
BrandSchmersal
R 11,872.74
Each
units
- MZM 100 B - - Power to Lock No Straight - M12 40mm 179mm 40mm 24 V dc -
RS stock no. 880-1738
Mfr. Part No.AZM300B-ST-1P2P
BrandSchmersal
R 7,525.98
Each
units
- AZM 300 - - Power to Unlock No Various Options - M12 85mm 100mm 35mm 24 V dc -
RS stock no. 617-5071
Mfr. Part No.AZM 161SK-12/12RK-110/230
BrandSchmersal
R 4,539.07
Each
units
- AZM 161 - - Power to Unlock No Various Options - M16 90mm 30mm 130mm 110 V ac, 230 V ac -
RS stock no. 739-0606
Mfr. Part No.XCSLF3737312
R 3,845.83
Each
units
Preventa XCS-LF - - Power to Unlock Yes Key - M20 205mm 51mm 43.5mm 24 V ac/dc -
RS stock no. 741-8685
Mfr. Part No.AZM 170-02ZRKA 24 VAC/DC
BrandSchmersal
R 4,039.34
Each
units
- AZM 170 - - Power to Lock No Various Options - 1/2 NPT 30mm 90mm 84mm 24 V ac/dc -
RS stock no. 362-2596
Mfr. Part No.AZM190-02/10RK-24VDC
BrandSchmersal
R 3,846.80
Each
units
- AZM 190 - - Power to Unlock No Various Options - M20 41mm 29.5mm 178mm 24 V dc -
RS stock no. 263-3753
Mfr. Part No.XCSE7312
R 6,987.68
Each
units
Preventa XCS-E - - Power to Unlock No Key - PG13.5 98mm 44mm 146mm 24 V ac/dc -
RS stock no. 880-1905
Mfr. Part No.MZM 100 B ST2-SD2PRE-A
BrandSchmersal
R 7,651.83
Each
units
- MZM 100 B - - Power to Lock No Straight - M12 40mm 179mm 40mm 24 V dc -
RS stock no. 814-7053
Mfr. Part No.XCSB803
R 4,015.31
Each
units
Preventa XCS-B - - Power to Lock Yes Key - 1/2 NPT 114mm 52mm 44mm 230 V ac/dc -
RS stock no. 814-7062
Mfr. Part No.XCSE5313
R 6,237.55
Each
units
Preventa XCS-E - - Power to Unlock Yes Key - M20 146mm 98mm 44mm 24 V ac/dc -
RS stock no. 252-3791
Mfr. Part No.XCSE5311
R 7,488.00
Each
units
Preventa XCS-E - - Power to Unlock Yes Key - PG13.5 98mm 44mm 146mm 24 V ac/dc -
RS stock no. 880-1895
Mfr. Part No.MZM 100 ST2-SD2PRE-A
BrandSchmersal
R 7,201.97
Each
units
- MZM 100 - - Power to Lock No Straight - M12 40mm 179mm 40mm 24 V dc -
RS stock no. 742-0717
Mfr. Part No.AZM 170SK-11/11ZRK-2197 24 VAC/DC
BrandSchmersal
R 3,597.64
Each
units
- AZM 170 - - Power to Unlock No Various Options - 1/2 NPT 30mm 108mm 100.5mm 24 V ac/dc -
RS stock no. 742-0713
Mfr. Part No.AZM 170-11ZRKA 230 VAC
BrandSchmersal
R 3,174.72
Each
units
- AZM 170 - - Power to Lock No Various Options - 1/2 NPT 30mm 90mm 84mm 230 V ac -
RS stock no. 742-0701
Mfr. Part No.AZM 170-11ZRKA 24 VAC/DC
BrandSchmersal
R 3,155.09
Each
units
- AZM 170 - - Power to Lock No Various Options - 1/2 NPT 30mm 90mm 84mm 24 V ac/dc -
RS stock no. 617-5087
Mfr. Part No.AZM 161SK-12/12RKA-024
BrandSchmersal
R 4,461.62
Each
units
- AZM 161 - - Power to Lock No Various Options - M16 90mm 30mm 130mm 24 V ac/dc -
RS stock no. 814-7087
Mfr. Part No.XCSL761B3
R 5,440.77
Each
units
- XCS-L - - Power to Unlock Yes Key - 1/2 NPT 7.64in 2.99in 1.73in 24 V dc -