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. 746-7208
Mfr. Part No.D4BL-1CRA-A
BrandOmron
HK$2,540.42
Each
units
- D4BL - - Power to Unlock - Various Options 1/2 NPT 116.5mm 123.5mm 46.3mm 24 V dc - 1NC
RS Stock No. 263-3769
Mfr. Part No.XCSE7332
HK$2,703.84
Each
units
Preventa XCS-E - - Power to Unlock Yes Key PG13.5 98mm 44mm 146mm 110/120 V ac - -
RS Stock No. 763-7047
Mfr. Part No.3SE5312-0SB11
BrandSiemens
HK$2,230.72
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 24 V dc - 1NO
RS Stock No. 880-1772
Mfr. Part No.AZM 200SK-T-1P2PW
BrandSchmersal
HK$3,243.42
Each
units
- AZM 200 - - Power to Unlock No Various Options 1/2 NPT 40mm 220mm 50mm 24 V dc - 1 PNP
RS Stock No. 741-8685
Mfr. Part No.AZM 170-02ZRKA 24 VAC/DC
BrandSchmersal
HK$1,773.46
Each
units
- AZM 170 - - Power to Lock No Various Options 1/2 NPT 30mm 90mm 84mm 24 V ac/dc - -
RS Stock No. 617-5144
Mfr. Part No.AZM415-11/11 ZPKE 110VAC-M20
BrandSchmersal
HK$3,262.30
Each
units
- AZM 415 - - Power to Unlock No Various Options 1/2 NPT 100mm 46.5mm 130mm 110 V ac - 2NO
RS Stock No. 617-5122
Mfr. Part No.AZM415-11/11 ZPKE 24VAC/DC-M20
BrandSchmersal
HK$2,936.07
Each
units
- AZM 415 - - Power to Unlock No Various Options 1/2 NPT 100mm 46.5mm 130mm 24 V ac/dc - 2NO
RS Stock No. 880-1703
Mfr. Part No.AZM300Z-ST-1P2P
BrandSchmersal
HK$4,220.30
Each
units
- AZM 300 - - Power to Unlock No Various Options 1/2 NPT 85mm 100mm 35mm 24 V dc - 1 PNP
RS Stock No. 880-1898
Mfr. Part No.MZM 100 ST2-1P2PWREM-A
BrandSchmersal
HK$5,681.28
Each
units
- MZM 100 - - Power to Lock No Straight M12 40mm 179mm 40mm 24 V dc - 1 PNP
RS Stock No. 305-1994
Mfr. Part No.XCSTE5341
HK$1,764.28
Each
units
Preventa XCS-TE - - Power to Unlock - - PG11 93.5mm 33mm 110mm 230 V ac - NC
RS Stock No. 397-2188
Mfr. Part No.XCSE7311
HK$3,062.04
Each
units
Preventa XCS-E - - Power to Unlock Yes Key PG13.5 98mm 44mm 146mm 24 V ac/dc - -
RS Stock No. 880-1886
Mfr. Part No.MZM 100 ST2-SD2PREM-A
BrandSchmersal
HK$5,423.45
Each
units
- MZM 100 - - Power to Lock No Straight M12 40mm 179mm 40mm 24 V dc - -
RS Stock No. 617-5065
Mfr. Part No.AZM 161SK-12/12RK-024
BrandSchmersal
HK$1,916.89
Each
units
- AZM 161 - - Power to Unlock No Various Options M16 90mm 30mm 130mm 24 V ac/dc - 2NO
RS Stock No. 252-3791
Mfr. Part No.XCSE5311
HK$2,718.00
Each
units
Preventa XCS-E - - Power to Unlock Yes Key PG13.5 98mm 44mm 146mm 24 V ac/dc - -
RS Stock No. 498-959
Mfr. Part No.3SE5322-0SD21
BrandSiemens
HK$1,553.21
Each
units
Sirius 3SE5 - - Power to Unlock - Various Options M20 54mm 43.8mm 159mm 24 V dc - 1NO
RS Stock No. 880-1788
Mfr. Part No.AZM 200ST2-T-1P2PW
BrandSchmersal
HK$4,343.40
Each
units
- AZM 200 - - Power to Unlock No Various Options M12 40mm 220mm 50mm 24 V dc - 1 PNP
RS Stock No. 880-1707
Mfr. Part No.AZM300Z-ST-1P2P-A
BrandSchmersal
HK$4,220.30
Each
units
- AZM 300 - - Power to Lock No Various Options 1/2 NPT 85mm 100mm 35mm 24 V dc - 1 PNP
RS Stock No. 763-6940
Mfr. Part No.3SE5322-0SE21
BrandSiemens
HK$2,002.30
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 24 V dc - 1NO
RS Stock No. 617-5138
Mfr. Part No.AZM415-11/11 ZPKE 230VAC-M20
BrandSchmersal
HK$3,099.19
Each
units
- AZM 415 - - Power to Unlock No Various Options 1/2 NPT 100mm 46.5mm 130mm 230 V ac - 2NO
RS Stock No. 892-9044
Mfr. Part No.TA2T6SL111
BrandFortress
HK$4,261.00
Each
units
AmGardpro proAT / proLok - - Power to Unlock Yes Tongue M12 177.1mm 80mm 40mm 110 V ac - 1NO
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