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 Rated stroke Power to Lock / Unlock Actuator Included Actuator Type Conduit Entry Length Width Depth Supply Voltage Maximum AC Voltage
RS Stock No. 824-4920
Mfr. Part No.570800
BrandPilz
TWD23,833.00
Each
units
PSENsgate PSEN sg2c - - - - Yes Handle M12 465mm 200mm 108mm 24 V dc -
RS Stock No. 178-3144
Mfr. Part No.8 10 BJ 28
BrandMecalectro
TWD6,699.00
Each
units
- - - - - Power to Lock No Various Options - 65mm 30mm 30mm 24 V dc -
RS Stock No. 742-0726
Mfr. Part No.AZM 170SK-11/02ZRK-2197 24VAC/DC
BrandSchmersal
TWD9,768.00
Each
units
- AZM 170 - - - Power to Unlock No Various Options 1/2 NPT 30mm 108mm 100.5mm 24 V ac/dc -
RS Stock No. 146-5796
Mfr. Part No.AZM161SK-12/12RIA-024-B1
BrandSchmersal
TWD10,074.00
Each
units
- AZM 161 3P - - Power to Lock Yes Coded M20 130mm 90mm 30mm 24 V ac/dc 24V
RS Stock No. 862-1703
Mfr. Part No.D4SL-N4CFG
BrandOmron
TWD5,646.00
Each
units
- D4SL-N - - - Power to Lock No Various Options M20 39mm 179.5mm 39mm 24 V dc -
RS Stock No. 739-0600
Mfr. Part No.XCS LF3737313
TWD10,032.00
Each
units
Preventa XCS-LF - - - Power to Unlock Yes Key 1/2 in 205mm 51mm 43.5mm 24 V ac/dc -
RS Stock No. 263-3769
Mfr. Part No.XCSE7332
TWD10,814.00
Each
units
Preventa XCS-E - - - Power to Unlock Yes Key PG13.5 98mm 44mm 146mm 110/120 V ac -
RS Stock No. 133-0067
Mfr. Part No.XCSLF3737412
TWD12,010.00
Each
units
Preventa XCSLF DP 2NC (Main), 2NC (Safety) - Power to Lock Yes Key M20 x 1.5 44mm 51mm 205mm 24 V ac/dc 240V
RS Stock No. 820-3799
Mfr. Part No.D4SLN4QDGD
BrandOmron
TWD6,776.00
Each
units
- D4SL-N - - - Power to Lock No Various Options M20 39mm 39mm 179.9mm 24 V dc -
RS Stock No. 498-959
Mfr. Part No.3SE5322-0SD21
BrandSiemens
TWD10,180.00
Each
units
Sirius 3SE5 - - - Power to Unlock - Various Options M20 54mm 43.8mm 159mm 24 V dc -
RS Stock No. 133-0068
Mfr. Part No.XCSLE2727512
TWD5,491.00
Each
units
Preventa XCS-LE DP - - Power to Lock No Key M20 44mm 51mm 205mm 24 V ac/dc 240V
RS Stock No. 739-0559
Mfr. Part No.XCSLF2727312
TWD5,795.00
Each
units
Preventa XCS-LF - - - Power to Unlock Yes Key M20 205mm 51mm 43.5mm 24 V ac/dc -
RS Stock No. 763-7031
Mfr. Part No.3SE5322-3SJ23
BrandSiemens
TWD16,833.00
Each
units
Sirius 3SE5 - - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 230 V ac -
RS Stock No. 136-3178
Mfr. Part No.6018169055
TWD8,647.00
Each
units
- SLK 4P - - Power to Unlock No Various Options M20 42.5mm 51mm 184mm 110 V ac, 230 V ac 110 V, 230 V
RS Stock No. 820-3771
Mfr. Part No.D4SLN4NDAD
BrandOmron
TWD6,776.00
Each
units
- D4SL-N - - - Power to Unlock No Various Options M20 39mm 39mm 179.9mm 24 V dc -
RS Stock No. 617-5093
Mfr. Part No.AZM190-02/01RK-24VDC
BrandSchmersal
TWD9,866.00
Each
units
- AZM 190 - - - Power to Unlock No Various Options M20 41mm 29.5mm 178mm 24 V dc -
RS Stock No. 146-5797
Mfr. Part No.AZM170-02ZRIA-B1 24VAC/DC
BrandSchmersal
TWD9,545.00
Each
units
- AZM 170 DP - - Power to Lock Yes Coded M20 90mm 84mm 30mm 24 V ac/dc 24V
RS Stock No. 814-6996
Mfr. Part No.XCSE5513
TWD37,039.00
Each
units
Preventa XCS-E - - - Power to Lock Yes Key 1/2 NPT 146mm 98mm 44mm 24 V ac/dc -
RS Stock No. 826-3975
Mfr. Part No.450001
BrandIDEM
TWD5,732.00
Each
units
RAMZLOCK KLTM - - - Power to Unlock No Various Options M20 155mm 105mm 46.5mm 24 V dc -
RS Stock No. 742-0707
Mfr. Part No.AZM 170-11ZRK 230 VAC
BrandSchmersal
TWD7,573.00
Each
units
- AZM 170 - - - Power to Unlock No Various Options 1/2 NPT 30mm 90mm 84mm 230 V ac -