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. 880-1898
Mfr. Part No.MZM 100 ST2-1P2PWREM-A
BrandSchmersal
MYR3,675.14
Each
units
- MZM 100 - - Power to Lock No Straight M12 40mm 179mm 40mm 24 V dc - 1 PNP
RS Stock No. 814-7062
Mfr. Part No.XCSE5313
MYR2,240.84
Each
units
Preventa XCS-E - - Power to Unlock Yes Key M20 146mm 98mm 44mm 24 V ac/dc - -
RS Stock No. 146-5796
Mfr. Part No.AZM161SK-12/12RIA-024-B1
BrandSchmersal
MYR1,381.14
Each
units
- AZM 161 3P - Power to Lock Yes Coded M20 130mm 90mm 30mm 24 V ac/dc 24V 2NO
RS Stock No. 880-1779
Mfr. Part No.AZM 200ST2-T-1P2P
BrandSchmersal
MYR2,436.82
Each
units
- AZM 200 - - Power to Unlock No Various Options M12 40mm 220mm 50mm 24 V dc - 1 PNP
RS Stock No. 840-2732
Mfr. Part No.SI-LS42DSH
BrandBanner
MYR1,413.97
Each
units
- SI-LS42 - - Power to Unlock No Various Options M20 42.5mm 170mm 45mm 24 V ac/dc - -
RS Stock No. 146-5798
Mfr. Part No.AZM170-02ZRI-B1 24VAC/DC
BrandSchmersal
MYR1,376.45
Each
units
- AZM 170 DP - Power to Unlock Yes Coded M20 90mm 84mm 30mm 24 V ac/dc 24V -
RS Stock No. 763-7038
Mfr. Part No.3SE5312-1SB11
BrandSiemens
MYR1,342.34
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 24 V dc - 1NO
RS Stock No. 263-3725
Mfr. Part No.XCSE5312
MYR1,587.48
Each
units
Preventa XCS-E - - Power to Unlock Yes Key M20 98mm 44mm 146mm 24 V ac/dc - -
RS Stock No. 132-9969
Mfr. Part No.XCSPL781
MYR228.23
Each
units
Preventa XCSPL - 2NC - Yes Elbowed Flush Lever - 30mm 30mm 161mm - - -
RS Stock No. 826-4016
Mfr. Part No.209001-PB
BrandIDEM
MYR1,600.67
Each
units
HYGIELOCK KL4-SS - - Power to Unlock No Various Options M20 198mm 48mm 47mm 24 V ac/dc - 1NO
RS Stock No. 746-7286
Mfr. Part No.D4NL-4CFA-B
BrandOmron
MYR995.98
Each
units
- D4NL - - Power to Unlock - Various Options M20 88.5mm 95mm 35.5mm 24 V dc - NC/NO
RS Stock No. 880-1703
Mfr. Part No.AZM300Z-ST-1P2P
BrandSchmersal
MYR2,367.80
Each
units
- AZM 300 - - Power to Unlock No Various Options 1/2 NPT 85mm 100mm 35mm 24 V dc - 1 PNP
RS Stock No. 136-3174
Mfr. Part No.6018119045
MYR976.97
Each
units
- SLK DP - Power to Unlock No Various Options M20 42.5mm 51mm 184mm 24 V ac/dc 24V NC/NO
RS Stock No. 146-5800
Mfr. Part No.AZM170-11ZRI-B1 24VAC/DC
BrandSchmersal
MYR1,376.45
Each
units
- AZM 170 DP - Power to Unlock Yes Coded M20 90mm 84mm 30mm 24 V ac/dc 24V 1NC
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