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 Conduit Entry Length Width Depth Supply Voltage Maximum AC Voltage Auxiliary Contacts
RS Stock No. 763-6934
Mfr. Part No.3SE5322-0SB23
BrandSiemens
TWD7,153.00
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 230 V ac - 1NO
RS Stock No. 252-3791
Mfr. Part No.XCSE5311
TWD14,035.00
Each
units
Preventa XCS-E - - Power to Unlock Yes Key PG13.5 98mm 44mm 146mm 24 V ac/dc - -
RS Stock No. 123-7512
Mfr. Part No.202021-SS
BrandIDEM
TWD7,195.00
Each
units
SAMLOCK KLM-P2L - - Power to Lock No Various Options M20 46mm 176mm 47mm 24 V dc - NC/NO
RS Stock No. 757-9200
Mfr. Part No.D4NL-4CFG-B
BrandOmron
TWD6,957.00
Each
units
- D4NL - - Power to Lock No Various Options M20 95mm 88.5mm 35.5mm 24 V dc - 2NC
RS Stock No. 880-1719
Mfr. Part No.AZM300Z-I2-ST-1P2PA
BrandSchmersal
TWD19,546.00
Each
units
- AZM 300 - - Power to Lock No Various Options 1/2 NPT 85mm 100mm 35mm 24 V dc - 1 PNP
RS Stock No. 397-2201
Mfr. Part No.XCSE7331
TWD14,745.00
Each
units
Preventa XCS-E - - Power to Unlock Yes Key PG13.5 98mm 44mm 146mm 110/120 V ac - -
RS Stock No. 746-7286
Mfr. Part No.D4NL-4CFA-B
BrandOmron
TWD6,957.00
Each
units
- D4NL - - Power to Unlock - Various Options M20 88.5mm 95mm 35.5mm 24 V dc - NC/NO
RS Stock No. 763-6952
Mfr. Part No.3SE5322-0SE23
BrandSiemens
TWD8,698.00
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 230 V ac - 1NO
RS Stock No. 862-1670
Mfr. Part No.D4SL-N4PFA-DN
BrandOmron
TWD6,537.00
Each
units
- D4SL-N - - Power to Unlock No Various Options M20 39mm 155mm 39mm 24 V dc - 3NC
RS Stock No. 820-3796
Mfr. Part No.D4SLN4QDAD
BrandOmron
TWD6,903.00
Each
units
- D4SL-N - - Power to Unlock No Various Options M20 39mm 39mm 179.9mm 24 V dc - 2NC/1NO
RS Stock No. 880-1703
Mfr. Part No.AZM300Z-ST-1P2P
BrandSchmersal
TWD17,894.00
Each
units
- AZM 300 - - Power to Unlock No Various Options 1/2 NPT 85mm 100mm 35mm 24 V dc - 1 PNP
RS Stock No. 397-2217
Mfr. Part No.XCSE7341
TWD13,485.00
Each
units
Preventa XCS-E - - Power to Unlock Yes Key PG13.5 98mm 44mm 146mm 230 V ac - -
RS Stock No. 739-0600
Mfr. Part No.XCS LF3737313
TWD10,339.00
Each
units
Preventa XCS-LF - - Power to Unlock Yes Key 1/2 in 205mm 51mm 43.5mm 24 V ac/dc - -
RS Stock No. 744-8654
Mfr. Part No.570001
BrandPilz
TWD7,236.00
Each
units
PSENmech PSENme - - Power to Unlock Yes Radius M20 184mm 42.5mm 51mm 24 V ac/dc - -
RS Stock No. 739-0603
Mfr. Part No.XCS LF3535343
TWD24,062.00
Each
units
Preventa XCS-LF - - Power to Unlock Yes Key 1/2 in 205mm 51mm 43.5mm 230 V ac/dc - -
RS Stock No. 617-5138
Mfr. Part No.AZM415-11/11 ZPKE 230VAC-M20
BrandSchmersal
TWD15,349.00
Each
units
- AZM 415 - - Power to Unlock No Various Options 1/2 NPT 100mm 46.5mm 130mm 230 V ac - 2NO
RS Stock No. 826-4000
Mfr. Part No.205001
BrandIDEM
TWD9,981.00
Each
units
HYGIELOCK KL3-SS - - Power to Unlock No Various Options M20 177mm 48mm 47mm 24 V ac/dc - 1NO
RS Stock No. 862-1680
Mfr. Part No.D4SL-N4PFA-D
BrandOmron
TWD6,271.00
Each
units
- D4SL-N - - Power to Unlock No Various Options M20 39mm 179.5mm 39mm 24 V dc - 3NC
RS Stock No. 609-6748
Mfr. Part No.XCSE8311
TWD14,038.00
Each
units
Preventa XCS-E - - Power to Unlock Yes Key PG13.5 98mm 44mm 146mm 24 V ac/dc - -
RS Stock No. 741-8681
Mfr. Part No.AZM 170-02ZRK 230 VAC
BrandSchmersal
TWD7,564.00
Each
units
- AZM 170 - - Power to Unlock No Various Options M20 30mm 90mm 84mm 230 V ac - -