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. 826-3975
Mfr. Part No.450001
BrandIDEM
MYR871.19
Each
units
RAMZLOCK KLTM - - Power to Unlock No Various Options M20 155mm 105mm 46.5mm 24 V dc - 1NO
RS Stock No. 862-1683
Mfr. Part No.D4SL-N4RFA-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. 617-5093
Mfr. Part No.AZM190-02/01RK-24VDC
BrandSchmersal
MYR1,499.45
Each
units
- AZM 190 - - Power to Unlock No Various Options M20 41mm 29.5mm 178mm 24 V dc - -
RS Stock No. 826-3993
Mfr. Part No.201001
BrandIDEM
MYR776.22
Each
units
SEZYLOCK KLP - - Power to Unlock No Various Options M20 160mm 46mm 45.5mm 24 V ac/dc - 2NO
RS Stock No. 826-3953
Mfr. Part No.221301
BrandIDEM
MYR757.14
Each
units
LEILOCK KL1-P - - Power to Unlock No Various Options M20 143mm 63mm 41.5mm 24 V ac/dc - 1NO
RS Stock No. 822-3860
Mfr. Part No.D4SL-N3NFG-DN
BrandOmron
MYR874.31
Each
units
- D4SL-N - - Power to Lock - Various Options 1/2-14 NPT 39mm 155mm 39mm 24 V dc - 2NC/1NO
RS Stock No. 744-8654
Mfr. Part No.570001
BrandPilz
MYR1,466.75
Each
units
PSENmech PSENme - - Power to Unlock Yes Radius M20 184mm 42.5mm 51mm 24 V ac/dc - -
RS Stock No. 739-0640
Mfr. Part No.XCS LE2727313
MYR802.10
Each
units
Preventa XCS-LE - - Power to Unlock Yes Key 1/2 in 205mm 51mm 43.5mm 24 V ac/dc - -
RS Stock No. 739-0606
Mfr. Part No.XCSLF3737312
MYR1,261.75
Each
units
Preventa XCS-LF - - Power to Unlock Yes Key M20 205mm 51mm 43.5mm 24 V ac/dc - -
RS Stock No. 824-4920
Mfr. Part No.570800
BrandPilz
MYR3,642.48
Each
units
PSENsgate PSEN sg2c - - - Yes Handle M12 465mm 200mm 108mm 24 V dc - -
RS Stock No. 820-3787
Mfr. Part No.D4SLN4PDGD
BrandOmron
MYR1,191.80
Each
units
- D4SL-N - - Power to Lock No Various Options M20 39mm 39mm 179.9mm 24 V dc - 3NC
RS Stock No. 820-3799
Mfr. Part No.D4SLN4QDGD
BrandOmron
MYR1,191.80
Each
units
- D4SL-N - - Power to Lock No Various Options M20 39mm 39mm 179.9mm 24 V dc - 2NC/1NO
RS Stock No. 739-0619
Mfr. Part No.XCSLF3737332
MYR1,557.02
Each
units
Preventa XCS-LF - - Power to Unlock Yes Key M20 205mm 51mm 43.5mm 120 V ac/dc - -
RS Stock No. 749-7694
Mfr. Part No.3SE5322-1SB21
BrandSiemens
MYR1,175.72
Each
units
Sirius 3SE5 - - Power to Unlock No Various Options M20 184.1mm 54mm 39.1mm 230 V ac - 1NO
RS Stock No. 862-1677
Mfr. Part No.D4SL-N4NFA-DN
BrandOmron
MYR1,042.83
Each
units
- D4SL-N - - Power to Unlock No Various Options M20 39mm 155mm 39mm 24 V dc - 2NC/1NO
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. 742-0707
Mfr. Part No.AZM 170-11ZRK 230 VAC
BrandSchmersal
MYR1,150.98
Each
units
- AZM 170 - - Power to Unlock No Various Options 1/2 NPT 30mm 90mm 84mm 230 V ac - 1NO
RS Stock No. 739-0656
Mfr. Part No.XCSLE3535312
MYR1,004.31
Each
units
Preventa XCS-LE - - Power to Unlock Yes Key 1/2 NPT 205mm 51mm 43.5mm 24 V ac/dc - -
RS Stock No. 880-1772
Mfr. Part No.AZM 200SK-T-1P2PW
BrandSchmersal
MYR2,290.57
Each
units
- AZM 200 - - Power to Unlock No Various Options 1/2 NPT 40mm 220mm 50mm 24 V dc - 1 PNP
RS Stock No. 814-7087
Mfr. Part No.XCSL761B3
MYR2,062.54
Each
units
- XCS-L - - Power to Unlock Yes Key 1/2 NPT 7.64in 2.99in 1.73in 24 V dc - -
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