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 Interface Conduit Entry Length Width Depth Supply Voltage
RS Stock No. 739-0669
Mfr. Part No.XCSLE3737312
£151.00
Each
Units
Preventa XCS-LE - - - Power to Unlock Yes Key - M20 205mm 51mm 43.5mm 24 V ac/dc
RS Stock No. 263-3797
Mfr. Part No.XCSE7512
£334.00
Each
Units
Preventa XCS-E - - - Power to Lock Yes Key - PG13.5 98mm 44mm 146mm 24 V ac/dc
RS Stock No. 357-9313
Mfr. Part No.440G-T27132
£179.00
Each
Units
TLS-2-GD2 440G-T - - - Power to Lock - - - M20 126mm 86mm 33mm 110 V ac
RS Stock No. 357-9290
Mfr. Part No.440G-T27123
£184.00
Each
Units
TLS-1-GD2 440G-T - - - Power to Unlock - - - M20 126mm 86mm 33mm 230 V ac
RS Stock No. 198-728
Mfr. Part No.XCSTE5511
£221.00
Each
Units
Preventa XCS TE - - - Power to Lock - - - PG11 94mm 110mm 33mm 24 V ac/dc
RS Stock No. 617-5122
Mfr. Part No.AZM415-11/11 ZPKE 24VAC/DC-M20
BrandSchmersal
£341.35
Each
Units
- AZM 415 - - - Power to Unlock No Various Options - 1/2 NPT 100mm 46.5mm 130mm 24 V ac/dc
RS Stock No. 498-959
Mfr. Part No.3SE5322-0SD21
BrandSiemens
£156.01
Each
Units
Sirius 3SE5 - - - Power to Unlock - Various Options - M20 54mm 43.8mm 159mm 24 V dc
RS Stock No. 356-6193
Mfr. Part No.440G-L07262
£369.00
Each
Units
Atlas 5 440G-L - - - Power to Unlock Yes Standard - M20 90mm 56mm 184mm 230 V ac/dc
RS Stock No. 826-3953
Mfr. Part No.221301
BrandIDEM
£114.58
Each
Units
LEILOCK KL1-P - - - Power to Unlock No Various Options - M20 143mm 63mm 41.5mm 24 V ac/dc
RS Stock No. 263-3725
Mfr. Part No.XCSE5312
£292.60
Each
Units
Preventa XCS-E - - - Power to Unlock Yes Key - M20 98mm 44mm 146mm 24 V ac/dc
RS Stock No. 301-9962
Mfr. Part No.XCSTE5312
£200.00
Each
Units
Preventa XCS-TE - - - Power to Unlock - - - M16 93.5mm 33mm 110mm 24 V ac/dc
RS Stock No. 178-3144
Mfr. Part No.8 10 BJ 28
BrandMecalectro
£131.16
Each
Units
- - - - - Power to Lock No Various Options - - 65mm 30mm 30mm 24 V dc
RS Stock No. 814-7087
Mfr. Part No.XCSL761B3
£306.00
Each
Units
- XCS-L - - - Power to Unlock Yes Key - 1/2 NPT 7.64in 2.99in 1.73in 24 V dc
RS Stock No. 742-0726
Mfr. Part No.AZM 170SK-11/02ZRK-2197 24VAC/DC
BrandSchmersal
£220.25
Each
Units
- AZM 170 - - - Power to Unlock No Various Options - 1/2 NPT 30mm 108mm 100.5mm 24 V ac/dc
RS Stock No. 252-3791
Mfr. Part No.XCSE5311
£285.95
Each
Units
Preventa XCS-E - - - Power to Unlock Yes Key - PG13.5 98mm 44mm 146mm 24 V ac/dc
RS Stock No. 757-9216
Mfr. Part No.D4NL-1AFG-B
BrandOmron
£157.20
Each
Units
- D4NL - - - Power to Lock - Various Options - 1/2 NPT 95mm 88.5mm 35.5mm 24 V dc
RS Stock No. 862-1715
Mfr. Part No.D4SL-N4AFG
BrandOmron
£129.90
Each
Units
- D4SL-N - - - Power to Lock No Various Options - M20 39mm 179.5mm 39mm 24 V dc
RS Stock No. 746-7286
Mfr. Part No.D4NL-4CFA-B
BrandOmron
£157.20
Each
Units
- D4NL - - - Power to Unlock - Various Options - M20 88.5mm 95mm 35.5mm 24 V dc
RS Stock No. 880-1902
Mfr. Part No.MZM 100 B ST2-SD2PREM-A
BrandSchmersal
£633.47
Each
Units
- MZM 100 B - - - Power to Lock No Straight - M12 40mm 179mm 40mm 24 V dc
RS Stock No. 880-1842
Mfr. Part No.EX-AZM 161SK-12/12RK-024-3D
BrandSchmersal
£301.18
Each
Units
- EX-AZM 161 - - - Power to Unlock No Various Options - M16 130mm 114mm 30mm 24 V ac/dc