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 Rated stroke Supply Voltage Actuator Type Safety Contacts Conduit Entry Length Housing Material Width
RS Stock No. 739-0662
Mfr. Part No.XCSLE3737342
HK$1,974.71
Each
units
Preventa XCS-LE - - Power to Unlock Yes - 230 V ac/dc Key 2NC/1NO M20 205mm Plastic 51mm
RS Stock No. 826-3965
Mfr. Part No.221307
BrandIDEM
HK$1,422.77
Each
units
LEILOCK KL1-P - - Power to Unlock No - 230 V ac Various Options 2NC M20 143mm Plastic 63mm
RS Stock No. 252-3814
Mfr. Part No.XCSE5341
HK$3,965.46
Each
units
Preventa XCS-E - - Power to Unlock Yes - 230 V ac Key 2NO/1NC PG13.5 98mm Metal 44mm
RS Stock No. 617-5100
Mfr. Part No.AZM 161SK-12/12RKA-110/230
BrandSchmersal
HK$2,268.97
Each
units
- AZM 161 - - Power to Lock No - 110 V ac, 230 V ac Various Options 4NC M16 90mm Plastic 30mm
RS Stock No. 880-1905
Mfr. Part No.MZM 100 B ST2-SD2PRE-A
BrandSchmersal
HK$7,348.21
Each
units
- MZM 100 B - - Power to Lock No - 24 V dc Straight 2 PNP M12 40mm Plastic 179mm
RS Stock No. 744-8654
Mfr. Part No.570001
BrandPilz
HK$2,300.92
Each
units
PSENmech PSENme - - Power to Unlock Yes - 24 V ac/dc Radius 2NO M20 184mm Plastic 42.5mm
RS Stock No. 749-7694
Mfr. Part No.3SE5322-1SB21
BrandSiemens
HK$3,051.00
Each
units
Sirius 3SE5 - - Power to Unlock No - 230 V ac Various Options 2NC M20 184.1mm Plastic 54mm
RS Stock No. 132-9169
Mfr. Part No.XCSTE7512
HK$2,228.21
Each
units
Preventa XCS-TE DP - Power to Unlock Yes - 24 V ac/dc Key 1NC M16 110mm Plastic 33mm
RS Stock No. 146-5797
Mfr. Part No.AZM170-02ZRIA-B1 24VAC/DC
BrandSchmersal
HK$2,607.34
Each
units
- AZM 170 DP - Power to Lock Yes - 24 V ac/dc Coded 2NC M20 90mm Plastic 84mm
RS Stock No. 498-971
Mfr. Part No.3SE5312-1SJ11
BrandSiemens
HK$5,139.21
Each
units
Sirius 3SE5 - - Power to Unlock - - 24 V dc Various Options 2NC M20 54mm Metal 43.8mm
RS Stock No. 180-6093
Mfr. Part No.1077942
BrandSick
HK$3,556.77
Each
units
- MLP1 - - - Yes - 24 V - - - 120mm Aluminium 38.5mm
RS Stock No. 180-6094
Mfr. Part No.1077943
BrandSick
HK$3,262.26
Each
units
- MLP1 - - - Yes - 28.8 V dc - - - 120mm Aluminium 38.5mm
RS Stock No. 251-1956
Mfr. Part No.440G-S36001
HK$3,381.56
Each
units
Spartan 440G-S - - Power to Unlock Yes - 24 V ac/dc Standard 2NC M20 58mm Plastic 35mm
RS Stock No. 862-1699
Mfr. Part No.D4SL-N4QFA-D
BrandOmron
HK$1,613.98
Each
units
- D4SL-N - - Power to Unlock No - 24 V dc Various Options 3NC M20 39mm Metal 179.5mm
RS Stock No. 498-983
Mfr. Part No.3SE5322-1SD21
BrandSiemens
HK$1,955.53
Each
units
Sirius 3SE5 - - Power to Unlock - - 24 V dc Various Options 2NC M20 54mm Plastic 43.8mm
RS Stock No. 397-2201
Mfr. Part No.XCSE7331
HK$3,965.46
Each
units
Preventa XCS-E - - Power to Unlock Yes - 110/120 V ac Key 1NO/2NC PG13.5 98mm Metal 44mm
RS Stock No. 822-3860
Mfr. Part No.D4SL-N3NFG-DN
BrandOmron
HK$1,566.56
Each
units
- D4SL-N - - Power to Lock - - 24 V dc Various Options 2NC/1NO 1/2-14 NPT 39mm Metal 155mm
RS Stock No. 146-5795
Mfr. Part No.AZM161SK-12/12RI-024-B1
BrandSchmersal
HK$2,751.87
Each
units
- AZM 161 3P - Power to Unlock Yes - 24 V ac/dc Coded 4NC M20 130mm Plastic 90mm
RS Stock No. 814-7087
Mfr. Part No.XCSL761B3
HK$7,258.13
Each
units
- XCS-L - - Power to Unlock Yes - 24 V dc Key 1NO/2NC 1/2 NPT 7.64in Metal 2.99in
RS Stock No. 862-1696
Mfr. Part No.D4SL-N4AFA
BrandOmron
HK$2,496.89
Each
units
- D4SL-N - - Power to Unlock No - 24 V dc Various Options 1NC/1NO M20 39mm Metal 179.5mm