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. 746-7283
Mfr. Part No.D4NL-4EFA-B
BrandOmron
MYR1,038.68
Each
units
- D4NL - - Power to Unlock - Various Options M20 88.5mm 95mm 35.5mm 24 V dc - NC/NO
RS Stock No. 739-0574
Mfr. Part No.XCSLF2725312
MYR823.85
Each
units
Preventa XCS-LF - - Power to Unlock Yes Key M20 205mm 51mm 43.5mm 24 V ac/dc - -
RS Stock No. 820-3796
Mfr. Part No.D4SLN4QDAD
BrandOmron
MYR1,191.80
Each
units
- D4SL-N - - Power to Unlock No Various Options M20 39mm 39mm 179.9mm 24 V dc - 2NC/1NO
RS Stock No. 862-1670
Mfr. Part No.D4SL-N4PFA-DN
BrandOmron
MYR1,042.83
Each
units
- D4SL-N - - Power to Unlock No Various Options M20 39mm 155mm 39mm 24 V dc - 3NC
RS Stock No. 861-4632
Mfr. Part No.D4BL-2DRA
BrandOmron
MYR1,923.69
Each
units
- D4BL - - Power to Unlock - Various Options 1/2 NPT 116.5mm 123.5mm 46.3mm 24 V dc - 1NC
RS Stock No. 826-4000
Mfr. Part No.205001
BrandIDEM
MYR1,496.16
Each
units
HYGIELOCK KL3-SS - - Power to Unlock No Various Options M20 177mm 48mm 47mm 24 V ac/dc - 1NO
RS Stock No. 814-7078
Mfr. Part No.XCSL764F3
MYR1,992.09
Each
units
- XCS-L - - Power to Unlock Yes Key 1/2 NPT 7.64in 2.99in 1.73in 110 V ac - -
RS Stock No. 746-7201
Mfr. Part No.D4BL-2CRA
BrandOmron
MYR1,936.68
Each
units
- D4BL - - Power to Unlock - Various Options 1/2 NPT 116.5mm 123.5mm 46.3mm 24 V dc - 1NC
RS Stock No. 609-6732
Mfr. Part No.XCSE7511
MYR2,027.28
Each
units
Preventa XCS-B - - Power to Lock Yes Key PG13.5 98mm 44mm 146mm 24 V ac/dc - -
RS Stock No. 362-2596
Mfr. Part No.AZM190-02/10RK-24VDC
BrandSchmersal
MYR1,373.35
Each
units
- AZM 190 - - Power to Unlock No Various Options M20 41mm 29.5mm 178mm 24 V dc - -
RS Stock No. 263-3725
Mfr. Part No.XCSE5312
MYR1,587.48
Each
units
Preventa XCS-E - - Power to Unlock Yes Key M20 98mm 44mm 146mm 24 V ac/dc - -
RS Stock No. 763-7139
Mfr. Part No.3SE5312-0SB13
BrandSiemens
MYR1,419.98
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 230 V ac - 1NO
RS Stock No. 880-1895
Mfr. Part No.MZM 100 ST2-SD2PRE-A
BrandSchmersal
MYR3,124.21
Each
units
- MZM 100 - - 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
MYR2,030.05
Each
units
- EX-AZM 161 - - Power to Unlock No Various Options M16 130mm 114mm 30mm 24 V ac/dc - NC/NO
RS Stock No. 263-3797
Mfr. Part No.XCSE7512
MYR2,217.57
Each
units
Preventa XCS-E - - Power to Lock Yes Key PG13.5 98mm 44mm 146mm 24 V ac/dc - -
RS Stock No. 814-7084
Mfr. Part No.XCSE8313
MYR2,194.53
Each
units
Preventa XCS-E - - Power to Unlock Yes Key 1/2 NPT 146mm 98mm 44mm 24 V ac/dc - -
RS Stock No. 880-1785
Mfr. Part No.AZM 200ST2-T-SD2PA
BrandSchmersal
MYR2,966.82
Each
units
- AZM 200 - - Power to Lock No Various Options M12 40mm 220mm 20mm 24 V dc - -
RS Stock No. 252-3814
Mfr. Part No.XCSE5341
MYR2,321.34
Each
units
Preventa XCS-E - - Power to Unlock Yes Key PG13.5 98mm 44mm 146mm 230 V ac - -
RS Stock No. 763-7031
Mfr. Part No.3SE5322-3SJ23
BrandSiemens
MYR1,847.12
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 230 V ac - 1NO
RS Stock No. 826-3981
Mfr. Part No.450201
BrandIDEM
MYR1,535.18
Each
units
RAMZLOCK KLTM-RFID - - Power to Unlock Yes Coded RFID M20 155mm 105mm 46.5mm 24 V dc - 1NO
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