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. 146-5795
Mfr. Part No.AZM161SK-12/12RI-024-B1
BrandSchmersal
TWD10,214.00
Each
units
- AZM 161 3P - Power to Unlock Yes Coded M20 130mm 90mm 30mm 24 V ac/dc 24V 2NO
RS Stock No. 198-740
Mfr. Part No.XCSE7321
TWD12,726.00
Each
units
Preventa XCS E - - Power to Unlock Yes Key PG13.5 146mm 98mm 44mm 48 V ac/dc - -
RS Stock No. 880-1725
Mfr. Part No.AZM300Z-I2-ST-SD2P
BrandSchmersal
TWD19,546.00
Each
units
- AZM 300 - - Power to Unlock No Various Options M12 85mm 100mm 35mm 24 V dc - -
RS Stock No. 498-987
Mfr. Part No.3SE5312-1SD11
BrandSiemens
TWD9,777.00
Each
units
Sirius 3SE5 - - Power to Unlock - Various Options M20 54mm 43.8mm 159mm 24 V dc - 1NO
RS Stock No. 862-1670
Mfr. Part No.D4SL-N4PFA-DN
BrandOmron
TWD6,507.00
Each
units
- D4SL-N - - Power to Unlock No Various Options M20 39mm 155mm 39mm 24 V dc - 3NC
RS Stock No. 739-0606
Mfr. Part No.XCSLF3737312
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. 146-5798
Mfr. Part No.AZM170-02ZRI-B1 24VAC/DC
BrandSchmersal
TWD9,677.00
Each
units
- AZM 170 DP - Power to Unlock Yes Coded M20 90mm 84mm 30mm 24 V ac/dc 24V -
RS Stock No. 826-3975
Mfr. Part No.450001
BrandIDEM
TWD5,812.00
Each
units
RAMZLOCK KLTM - - Power to Unlock No Various Options M20 155mm 105mm 46.5mm 24 V dc - 1NO
RS Stock No. 763-7031
Mfr. Part No.3SE5322-3SJ23
BrandSiemens
TWD12,322.00
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 230 V ac - 1NO
RS Stock No. 739-0666
Mfr. Part No.XCSLE3838312
TWD6,230.00
Each
units
Preventa XCS-LE - - Power to Unlock Yes Key M20 205mm 51mm 43.5mm 24 V ac/dc - -
RS Stock No. 862-1677
Mfr. Part No.D4SL-N4NFA-DN
BrandOmron
TWD6,507.00
Each
units
- D4SL-N - - Power to Unlock No Various Options M20 39mm 155mm 39mm 24 V dc - 2NC/1NO
RS Stock No. 880-1851
Mfr. Part No.EX-AZM 161SK-12/12RKA-024-3D
BrandSchmersal
TWD13,544.00
Each
units
- EX-AZM 161 - - Power to Lock No Various Options M16 130mm 114mm 30mm 24 V ac/dc - NC/NO
RS Stock No. 862-1703
Mfr. Part No.D4SL-N4CFG
BrandOmron
TWD5,724.00
Each
units
- D4SL-N - - Power to Lock No Various Options M20 39mm 179.5mm 39mm 24 V dc - NC/NO
RS Stock No. 763-6934
Mfr. Part No.3SE5322-0SB23
BrandSiemens
TWD7,153.00
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 230 V ac - 1NO
RS Stock No. 746-7286
Mfr. Part No.D4NL-4CFA-B
BrandOmron
TWD6,929.00
Each
units
- D4NL - - Power to Unlock - Various Options M20 88.5mm 95mm 35.5mm 24 V dc - NC/NO
RS Stock No. 862-1683
Mfr. Part No.D4SL-N4RFA-DN
BrandOmron
TWD6,507.00
Each
units
- D4SL-N - - Power to Unlock No Various Options M20 39mm 155mm 39mm 24 V dc - 3NC
RS Stock No. 136-3177
Mfr. Part No.6018169054
TWD7,207.00
Each
units
- SLK 4P - Power to Unlock No Various Options M20 42.5mm 51mm 184mm 24 V ac/dc 24V 2NC
RS Stock No. 826-3965
Mfr. Part No.221307
BrandIDEM
TWD5,168.00
Each
units
LEILOCK KL1-P - - Power to Unlock No Various Options M20 143mm 63mm 41.5mm 230 V ac - 1NO
RS Stock No. 739-0619
Mfr. Part No.XCSLF3737332
TWD10,388.00
Each
units
Preventa XCS-LF - - Power to Unlock Yes Key M20 205mm 51mm 43.5mm 120 V ac/dc - -
RS Stock No. 742-0726
Mfr. Part No.AZM 170SK-11/02ZRK-2197 24VAC/DC
BrandSchmersal
TWD9,904.00
Each
units
- AZM 170 - - Power to Unlock No Various Options 1/2 NPT 30mm 108mm 100.5mm 24 V ac/dc - 1NO