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. 744-8651
Mfr. Part No.570000
BrandPilz
HK$1,186.29
Each
units
PSENmech PSENme - - - Power to Unlock Yes Standard M20 184mm 42.5mm 51mm 24 V ac/dc -
RS Stock No. 880-1729
Mfr. Part No.AZM300Z-I2-ST-SD2P-A
BrandSchmersal
HK$4,609.70
Each
units
- AZM 300 - - - Power to Lock No Various Options 1/2 NPT 85mm 100mm 35mm 24 V dc -
RS Stock No. 826-4016
Mfr. Part No.209001-PB
BrandIDEM
HK$2,831.38
Each
units
HYGIELOCK KL4-SS - - - Power to Unlock No Various Options M20 198mm 48mm 47mm 24 V ac/dc -
RS Stock No. 826-3965
Mfr. Part No.221307
BrandIDEM
HK$1,341.10
Each
units
LEILOCK KL1-P - - - Power to Unlock No Various Options M20 143mm 63mm 41.5mm 230 V ac -
RS Stock No. 814-7053
Mfr. Part No.XCSB803
HK$3,473.29
Each
units
Preventa XCS-B - - - Power to Lock Yes Key 1/2 NPT 114mm 52mm 44mm 230 V ac/dc -
RS Stock No. 826-3981
Mfr. Part No.450201
BrandIDEM
HK$2,648.42
Each
units
RAMZLOCK KLTM-RFID - - - Power to Unlock Yes Coded RFID M20 155mm 105mm 46.5mm 24 V dc -
RS Stock No. 739-0561
Mfr. Part No.XCSLF2727313
HK$4,065.09
Each
units
Preventa XCS-LF - - - Power to Unlock Yes Key 1/2 in 205mm 51mm 43.5mm 24 V ac/dc -
RS Stock No. 741-8681
Mfr. Part No.AZM 170-02ZRK 230 VAC
BrandSchmersal
HK$1,887.55
Each
units
- AZM 170 - - - Power to Unlock No Various Options M20 30mm 90mm 84mm 230 V ac -
RS Stock No. 880-1902
Mfr. Part No.MZM 100 B ST2-SD2PREM-A
BrandSchmersal
HK$7,108.00
Each
units
- MZM 100 B - - - Power to Lock No Straight M12 40mm 179mm 40mm 24 V dc -
RS Stock No. 617-5093
Mfr. Part No.AZM190-02/01RK-24VDC
BrandSchmersal
HK$2,544.94
Each
units
- AZM 190 - - - Power to Unlock No Various Options M20 41mm 29.5mm 178mm 24 V dc -
RS Stock No. 826-4000
Mfr. Part No.205001
BrandIDEM
HK$2,581.09
Each
units
HYGIELOCK KL3-SS - - - Power to Unlock No Various Options M20 177mm 48mm 47mm 24 V ac/dc -
RS Stock No. 880-1892
Mfr. Part No.MZM 100 ST2-1P2PWRE-A
BrandSchmersal
HK$5,856.32
Each
units
- MZM 100 - - - Power to Lock No Straight M12 40mm 179mm 40mm 24 V dc -
RS Stock No. 617-5071
Mfr. Part No.AZM 161SK-12/12RK-110/230
BrandSchmersal
HK$2,142.60
Each
units
- AZM 161 - - - Power to Unlock No Various Options M16 90mm 30mm 130mm 110 V ac, 230 V ac -
RS Stock No. 763-6996
Mfr. Part No.3SE5322-1SG21
BrandSiemens
HK$2,641.95
Each
units
Sirius 3SE5 - - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 24 V dc -
RS Stock No. 739-0600
Mfr. Part No.XCS LF3737313
HK$2,408.70
Each
units
Preventa XCS-LF - - - Power to Unlock Yes Key 1/2 in 205mm 51mm 43.5mm 24 V ac/dc -
RS Stock No. 305-1988
Mfr. Part No.XCSTE5311
HK$2,367.04
Each
units
Preventa XCS-TE - - - Power to Unlock - - PG11 93.5mm 33mm 110mm 24 V ac/dc -
RS Stock No. 880-1766
Mfr. Part No.RSS 36-SD-ST
BrandSchmersal
HK$1,183.63
Each
units
- RSS 36 - - - - No - M12 27mm 108.2mm 35mm 24 V dc -
RS Stock No. 617-5087
Mfr. Part No.AZM 161SK-12/12RKA-024
BrandSchmersal
HK$2,121.56
Each
units
- AZM 161 - - - Power to Lock No Various Options M16 90mm 30mm 130mm 24 V ac/dc -
RS Stock No. 742-0726
Mfr. Part No.AZM 170SK-11/02ZRK-2197 24VAC/DC
BrandSchmersal
HK$2,227.85
Each
units
- AZM 170 - - - Power to Unlock No Various Options 1/2 NPT 30mm 108mm 100.5mm 24 V ac/dc -
RS Stock No. 739-0631
Mfr. Part No.XCSLE2525312
HK$1,117.21
Each
units
Preventa XCS-LE - - - Power to Unlock No Key M20 205mm 51mm 43.5mm 24 V ac/dc -
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