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. 880-1851
Mfr. Part No.EX-AZM 161SK-12/12RKA-024-3D
BrandSchmersal
HK$3,379.46
Each
units
- EX-AZM 161 - - - Power to Lock No Various Options M16 130mm 114mm 30mm 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. 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. 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. 742-0707
Mfr. Part No.AZM 170-11ZRK 230 VAC
BrandSchmersal
HK$1,916.05
Each
units
- AZM 170 - - - Power to Unlock No Various Options 1/2 NPT 30mm 90mm 84mm 230 V ac -
RS Stock No. 826-3969
Mfr. Part No.220301
BrandIDEM
HK$2,360.42
Each
units
RYANLOCK KL1-SS - - - Power to Unlock No Various Options M20 143mm 63mm 41.5mm 24 V ac/dc -
RS Stock No. 862-1696
Mfr. Part No.D4SL-N4AFA
BrandOmron
HK$1,480.26
Each
units
- D4SL-N - - - Power to Unlock No Various Options M20 39mm 179.5mm 39mm 24 V dc -
RS Stock No. 263-3753
Mfr. Part No.XCSE7312
HK$4,696.86
Each
units
Preventa XCS-E - - - Power to Unlock No Key PG13.5 98mm 44mm 146mm 24 V ac/dc -
RS Stock No. 746-7198
Mfr. Part No.D4BL-1CRA
BrandOmron
HK$3,405.51
Each
units
- D4BL - - - Power to Unlock - Various Options 1/2 NPT 116.5mm 123.5mm 46.3mm 24 V dc -
RS Stock No. 397-2217
Mfr. Part No.XCSE7341
HK$3,595.82
Each
units
Preventa XCS-E - - - Power to Unlock Yes Key PG13.5 98mm 44mm 146mm 230 V ac -
RS Stock No. 880-1775
Mfr. Part No.AZM 200SK-T-1P2PWA
BrandSchmersal
HK$3,813.14
Each
units
- AZM 200 - - - Power to Lock No Various Options M12 40mm 220mm 50mm 24 V dc -
RS Stock No. 198-740
Mfr. Part No.XCSE7321
HK$3,290.76
Each
units
Preventa XCS E - - - Power to Unlock Yes Key PG13.5 146mm 98mm 44mm 48 V ac/dc -
RS Stock No. 498-987
Mfr. Part No.3SE5312-1SD11
BrandSiemens
HK$2,499.21
Each
units
Sirius 3SE5 - - - Power to Unlock - Various Options M20 54mm 43.8mm 159mm 24 V dc -
RS Stock No. 746-7201
Mfr. Part No.D4BL-2CRA
BrandOmron
HK$2,773.30
Each
units
- D4BL - - - Power to Unlock - Various Options 1/2 NPT 116.5mm 123.5mm 46.3mm 24 V dc -
RS Stock No. 862-1699
Mfr. Part No.D4SL-N4QFA-D
BrandOmron
HK$1,587.87
Each
units
- D4SL-N - - - Power to Unlock No Various Options M20 39mm 179.5mm 39mm 24 V dc -
RS Stock No. 820-3783
Mfr. Part No.D4SLN4PDAD
BrandOmron
HK$1,748.03
Each
units
- D4SL-N - - - Power to Unlock No Various Options M20 39mm 39mm 179.9mm 24 V dc -
RS Stock No. 880-1781
Mfr. Part No.AZM 200ST2-T-SD2P
BrandSchmersal
HK$4,462.40
Each
units
- AZM 200 - - - Power to Lock No Various Options M12 40mm 220mm 50mm 24 V dc -
RS Stock No. 814-7031
Mfr. Part No.XCSTE7313
HK$2,255.63
Each
units
Preventa XCS-TE - - - Power to Unlock Yes Key 1/2 NPT 94mm 110mm 33mm 24 V ac/dc -
RS Stock No. 826-3975
Mfr. Part No.450001
BrandIDEM
HK$1,360.33
Each
units
RAMZLOCK KLTM - - - Power to Unlock No Various Options M20 155mm 105mm 46.5mm 24 V dc -
RS Stock No. 739-0628
Mfr. Part No.XCSLF3838312
HK$1,760.60
Each
units
Preventa XCS-LF - - - Power to Unlock Yes Key M20 205mm 51mm 43.5mm 24 V ac/dc -
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