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. 862-1709
Mfr. Part No.D4SL-N4EFA-D
BrandOmron
TWD5,985.00
Each
units
- D4SL-N - - Power to Unlock No Various Options M20 39mm 179.5mm 39mm 24 V dc - NC/NO
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. 826-3993
Mfr. Part No.201001
BrandIDEM
TWD5,178.00
Each
units
SEZYLOCK KLP - - Power to Unlock No Various Options M20 160mm 46mm 45.5mm 24 V ac/dc - 2NO
RS Stock No. 263-3731
Mfr. Part No.XCSE5332
TWD14,030.00
Each
units
Preventa XCS-E - - Power to Unlock Yes Key M20 98mm 44mm 146mm 110/120 V ac - -
RS Stock No. 826-3981
Mfr. Part No.450201
BrandIDEM
TWD10,241.00
Each
units
RAMZLOCK KLTM-RFID - - Power to Unlock Yes Coded RFID M20 155mm 105mm 46.5mm 24 V dc - 1NO
RS Stock No. 763-6996
Mfr. Part No.3SE5322-1SG21
BrandSiemens
TWD10,385.00
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 24 V dc - 1NO
RS Stock No. 880-1781
Mfr. Part No.AZM 200ST2-T-SD2P
BrandSchmersal
TWD17,541.00
Each
units
- AZM 200 - - Power to Lock No Various Options M12 40mm 220mm 50mm 24 V dc - -
RS Stock No. 263-3769
Mfr. Part No.XCSE7332
TWD10,926.00
Each
units
Preventa XCS-E - - Power to Unlock Yes Key PG13.5 98mm 44mm 146mm 110/120 V ac - -
RS Stock No. 739-0628
Mfr. Part No.XCSLF3838312
TWD7,449.00
Each
units
Preventa XCS-LF - - Power to Unlock Yes Key M20 205mm 51mm 43.5mm 24 V ac/dc - -
RS Stock No. 880-1902
Mfr. Part No.MZM 100 B ST2-SD2PREM-A
BrandSchmersal
TWD28,485.00
Each
units
- MZM 100 B - - Power to Lock No Straight M12 40mm 179mm 40mm 24 V dc - -
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. 301-9984
Mfr. Part No.XCSTE7312
TWD6,168.00
Each
units
Preventa XCS-TE - - Power to Unlock - - M16 93.5mm 33mm 110mm 24 V ac/dc - NC
RS Stock No. 861-4638
Mfr. Part No.D4BL-1DRA
BrandOmron
TWD12,029.00
Each
units
- D4BL - - Power to Unlock - Various Options 1/2 NPT 116.5mm 123.5mm 46.3mm 24 V dc - 1NC
RS Stock No. 180-6093
Mfr. Part No.1077942
BrandSick
TWD13,202.00
Each
units
- MLP1 - - - Yes - - 120mm 38.5mm 60mm 24 V - -
RS Stock No. 862-1670
Mfr. Part No.D4SL-N4PFA-DN
BrandOmron
TWD6,507.00
Each
units
- D4SL-N - - Power to Unlock No Various Options M20 39mm 155mm 39mm 24 V dc - 3NC
RS Stock No. 739-0638
Mfr. Part No.XCSLE2525342
TWD4,991.00
Each
units
Preventa XCS-LE - - Power to Unlock Yes Key M20 205mm 51mm 43.5mm 230 V ac/dc - -
RS Stock No. 820-3783
Mfr. Part No.D4SLN4PDAD
BrandOmron
TWD6,871.00
Each
units
- D4SL-N - - Power to Unlock No Various Options M20 39mm 39mm 179.9mm 24 V dc - 3NC
RS Stock No. 617-5065
Mfr. Part No.AZM 161SK-12/12RK-024
BrandSchmersal
TWD6,683.00
Each
units
- AZM 161 - - Power to Unlock No Various Options M16 90mm 30mm 130mm 24 V ac/dc - 2NO
RS Stock No. 880-1895
Mfr. Part No.MZM 100 ST2-SD2PRE-A
BrandSchmersal
TWD20,843.00
Each
units
- MZM 100 - - Power to Lock No Straight M12 40mm 179mm 40mm 24 V dc - -
RS Stock No. 136-3174
Mfr. Part No.6018119045
TWD6,910.00
Each
units
- SLK DP - Power to Unlock No Various Options M20 42.5mm 51mm 184mm 24 V ac/dc 24V NC/NO