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 Interface Conduit Entry Length Width Depth Supply Voltage Maximum AC Voltage
RS Stock No. 741-8681
Mfr. Part No.AZM 170-02ZRK 230 VAC
BrandSchmersal
kr 1 801,84
Each
Units
- AZM 170 - - Power to Unlock No Various Options - M20 30mm 90mm 84mm 230 V ac -
RS Stock No. 826-3969
Mfr. Part No.220301
BrandIDEM
kr 2 674,02
Each
Units
RYANLOCK KL1-SS - - Power to Unlock No Various Options - M20 143mm 63mm 41.5mm 24 V ac/dc -
RS Stock No. 252-3814
Mfr. Part No.XCSE5341
kr 2 556,41
Each
Units
Preventa XCS-E - - Power to Unlock Yes Key - PG13.5 98mm 44mm 146mm 230 V ac -
RS Stock No. 746-7201
Mfr. Part No.D4BL-2CRA
BrandOmron
kr 3 842,00
Each
Units
- D4BL - - Power to Unlock - Various Options - 1/2 NPT 116.5mm 123.5mm 46.3mm 24 V dc -
RS Stock No. 739-0628
Mfr. Part No.XCSLF3838312
kr 1 808,33
Each
Units
Preventa XCS-LF - - Power to Unlock Yes Key - M20 205mm 51mm 43.5mm 24 V ac/dc -
RS Stock No. 763-6940
Mfr. Part No.3SE5322-0SE21
BrandSiemens
kr 2 460,52
Each
Units
Sirius 3SE5 - - Power to Lock - Various Options - M20 54mm 43.8mm 184.1mm 24 V dc -
RS Stock No. 880-1785
Mfr. Part No.AZM 200ST2-T-SD2PA
BrandSchmersal
kr 4 656,53
Each
Units
- AZM 200 - - Power to Lock No Various Options - M12 40mm 220mm 20mm 24 V dc -
RS Stock No. 739-0638
Mfr. Part No.XCSLE2525342
kr 1 245,46
Each
Units
Preventa XCS-LE - - Power to Unlock Yes Key - M20 205mm 51mm 43.5mm 230 V ac/dc -
RS Stock No. 820-3799
Mfr. Part No.D4SLN4QDGD
BrandOmron
kr 1 365,66
Each
Units
- D4SL-N - - Power to Lock No Various Options - M20 39mm 39mm 179.9mm 24 V dc -
RS Stock No. 880-1772
Mfr. Part No.AZM 200SK-T-1P2PW
BrandSchmersal
kr 3 863,77
Each
Units
- AZM 200 - - Power to Unlock No Various Options - 1/2 NPT 40mm 220mm 50mm 24 V dc -
RS Stock No. 814-7053
Mfr. Part No.XCSB803
kr 1 787,48
Each
Units
Preventa XCS-B - - Power to Lock Yes Key - 1/2 NPT 114mm 52mm 44mm 230 V ac/dc -
RS Stock No. 757-9203
Mfr. Part No.D4NL-4EFG-B
BrandOmron
kr 1 881,00
Each
Units
- D4NL - - Power to Lock - Various Options - M20 95mm 88.5mm 35.5mm 24 V dc -
RS Stock No. 820-3771
Mfr. Part No.D4SLN4NDAD
BrandOmron
kr 1 516,00
Each
Units
- D4SL-N - - Power to Unlock No Various Options - M20 39mm 39mm 179.9mm 24 V dc -
RS Stock No. 862-1712
Mfr. Part No.D4SL-N4EFG-D
BrandOmron
kr 1 430,00
Each
Units
- D4SL-N - - Power to Lock No Various Options - M20 39mm 179.5mm 39mm 24 V dc -
RS Stock No. 826-3997
Mfr. Part No.202001-SS
BrandIDEM
kr 1 870,41
Each
Units
SAMLOCK KLM - - Power to Unlock No Various Options - M20 176mm 46mm 47mm 24 V ac/dc -
RS Stock No. 880-1729
Mfr. Part No.AZM300Z-I2-ST-SD2P-A
BrandSchmersal
kr 3 496,32
Each
Units
- AZM 300 - - Power to Lock No Various Options - 1/2 NPT 85mm 100mm 35mm 24 V dc -
RS Stock No. 263-3731
Mfr. Part No.XCSE5332
kr 2 617,52
Each
Units
Preventa XCS-E - - Power to Unlock Yes Key - M20 98mm 44mm 146mm 110/120 V ac -
RS Stock No. 861-4657
Mfr. Part No.D4NL-2EFA-B
BrandOmron
kr 1 929,99
Each
Units
- D4NL - - Power to Unlock - Various Options - 1/2 NPT 39mm 179.5mm 39mm 24 V dc -
RS Stock No. 739-0603
Mfr. Part No.XCS LF3535343
kr 3 112,50
Each
Units
Preventa XCS-LF - - Power to Unlock Yes Key - 1/2 in 205mm 51mm 43.5mm 230 V ac/dc -
RS Stock No. 763-7069
Mfr. Part No.3SE5312-0SF11
BrandSiemens
kr 3 268,17
Each
Units
Sirius 3SE5 - - Power to Lock - Various Options - M20 54mm 43.8mm 184.1mm 24 V dc -
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