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. 763-7069
Mfr. Part No.3SE5312-0SF11
BrandSiemens
TWD10,382.00
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 24 V dc - 1NO
RS Stock No. 198-740
Mfr. Part No.XCSE7321
TWD12,149.00
Each
units
Preventa XCS E - - Power to Unlock Yes Key PG13.5 146mm 98mm 44mm 48 V ac/dc - -
RS Stock No. 746-7283
Mfr. Part No.D4NL-4EFA-B
BrandOmron
TWD6,780.00
Each
units
- D4NL - - Power to Unlock - Various Options M20 88.5mm 95mm 35.5mm 24 V dc - NC/NO
RS Stock No. 880-1785
Mfr. Part No.AZM 200ST2-T-SD2PA
BrandSchmersal
TWD19,094.00
Each
units
- AZM 200 - - Power to Lock No Various Options M12 40mm 220mm 20mm 24 V dc - -
RS Stock No. 739-0662
Mfr. Part No.XCSLE3737342
TWD5,930.00
Each
units
Preventa XCS-LE - - Power to Unlock Yes Key M20 205mm 51mm 43.5mm 230 V ac/dc - -
RS Stock No. 498-971
Mfr. Part No.3SE5312-1SJ11
BrandSiemens
TWD10,228.00
Each
units
Sirius 3SE5 - - Power to Unlock - Various Options M20 54mm 43.8mm 159mm 24 V dc - 1NO
RS Stock No. 498-959
Mfr. Part No.3SE5322-0SD21
BrandSiemens
TWD6,864.00
Each
units
Sirius 3SE5 - - Power to Unlock - Various Options M20 54mm 43.8mm 159mm 24 V dc - 1NO
RS Stock No. 862-1699
Mfr. Part No.D4SL-N4QFA-D
BrandOmron
TWD6,107.00
Each
units
- D4SL-N - - Power to Unlock No Various Options M20 39mm 179.5mm 39mm 24 V dc - 2NC/1NO
RS Stock No. 862-1674
Mfr. Part No.D4SL-N4QFA-DN
BrandOmron
TWD6,367.00
Each
units
- D4SL-N - - Power to Unlock No Various Options M20 39mm 155mm 39mm 24 V dc - 2NC/1NO
RS Stock No. 880-1895
Mfr. Part No.MZM 100 ST2-SD2PRE-A
BrandSchmersal
TWD19,898.00
Each
units
- MZM 100 - - Power to Lock No Straight M12 40mm 179mm 40mm 24 V dc - -
RS Stock No. 749-7690
Mfr. Part No.3SE5312-0SD13
BrandSiemens
TWD8,806.00
Each
units
Sirius 3SE5 - - Power to Unlock No Various Options M20 184.1mm 54mm 55.7mm 230 V ac - 1NO
RS Stock No. 739-0647
Mfr. Part No.XCSLE2727312
TWD4,457.00
Each
units
Preventa XCS-LE - - Power to Unlock Yes Key M20 205mm 51mm 43.5mm 24 V ac/dc - -
RS Stock No. 362-2596
Mfr. Part No.AZM190-02/10RK-24VDC
BrandSchmersal
TWD8,839.00
Each
units
- AZM 190 - - Power to Unlock No Various Options M20 41mm 29.5mm 178mm 24 V dc - -
RS Stock No. 739-0561
Mfr. Part No.XCSLF2727313
TWD6,955.00
Each
units
Preventa XCS-LF - - Power to Unlock Yes Key 1/2 in 205mm 51mm 43.5mm 24 V ac/dc - -
RS Stock No. 739-0603
Mfr. Part No.XCS LF3535343
TWD12,278.00
Each
units
Preventa XCS-LF - - Power to Unlock Yes Key 1/2 in 205mm 51mm 43.5mm 230 V ac/dc - -
RS Stock No. 826-3962
Mfr. Part No.221304
BrandIDEM
TWD4,934.00
Each
units
LEILOCK KL1-P - - Power to Unlock No Various Options M20 143mm 63mm 41.5mm 110 V ac - 1NO
RS Stock No. 763-7031
Mfr. Part No.3SE5322-3SJ23
BrandSiemens
TWD11,765.00
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 230 V ac - 1NO
RS Stock No. 826-3997
Mfr. Part No.202001-SS
BrandIDEM
TWD6,196.00
Each
units
SAMLOCK KLM - - Power to Unlock No Various Options M20 176mm 46mm 47mm 24 V ac/dc - 1NO
RS Stock No. 820-3803
Mfr. Part No.D4SLN4RDGD
BrandOmron
TWD6,723.00
Each
units
- D4SL-N - - Power to Lock No Various Options M20 39mm 39mm 179.9mm 24 V dc - 3NC
RS Stock No. 252-3791
Mfr. Part No.XCSE5311
TWD13,760.00
Each
units
Preventa XCS-E - - Power to Unlock Yes Key PG13.5 98mm 44mm 146mm 24 V ac/dc - -