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. 263-3725
Mfr. Part No.XCSE5312
$768.10
Each
units
Preventa XCS-E - - Power to Unlock Yes Key M20 98mm 44mm 146mm 24 V ac/dc - -
RS Stock No. 198-728
Mfr. Part No.XCSTE5511
$466.85
Each
units
Preventa XCS TE - - Power to Lock - - PG11 94mm 110mm 33mm 24 V ac/dc - NC
RS Stock No. 742-0717
Mfr. Part No.AZM 170SK-11/11ZRK-2197 24 VAC/DC
BrandSchmersal
$410.76
Each
units
- AZM 170 - - Power to Unlock No Various Options 1/2 NPT 30mm 108mm 100.5mm 24 V ac/dc - 2NO
RS Stock No. 820-3780
Mfr. Part No.D4SLN4NDGD
BrandOmron
$429.96
Each
units
- D4SL-N - - Power to Lock No Various Options M20 39mm 39mm 179.9mm 24 V dc - 2NC/1NO
RS Stock No. 744-8651
Mfr. Part No.570000
BrandPilz
$404.19
Each
units
PSENmech PSENme - - Power to Unlock Yes Standard M20 184mm 42.5mm 51mm 24 V ac/dc - -
RS Stock No. 820-3793
Mfr. Part No.D4SLN4RDAD
BrandOmron
$327.22
Each
units
- D4SL-N - - Power to Unlock No Various Options M20 39mm 39mm 179.9mm 24 V dc - 3NC
RS Stock No. 826-4000
Mfr. Part No.205001
BrandIDEM
$590.21
Each
units
HYGIELOCK KL3-SS - - Power to Unlock No Various Options M20 177mm 48mm 47mm 24 V ac/dc - 1NO
RS Stock No. 617-5138
Mfr. Part No.AZM415-11/11 ZPKE 230VAC-M20
BrandSchmersal
$731.00
Each
units
- AZM 415 - - Power to Unlock No Various Options 1/2 NPT 100mm 46.5mm 130mm 230 V ac - 2NO
RS Stock No. 862-1699
Mfr. Part No.D4SL-N4QFA-D
BrandOmron
$297.24
Each
units
- D4SL-N - - Power to Unlock No Various Options M20 39mm 179.5mm 39mm 24 V dc - 2NC/1NO
RS Stock No. 746-7277
Mfr. Part No.D4NL-4AFA-B
BrandOmron
$382.27
Each
units
- D4NL - - Power to Unlock - Various Options 1/2 NPT 88.5mm 95mm 35.5mm 24 V dc - NC/NO
RS Stock No. 826-3965
Mfr. Part No.221307
BrandIDEM
$246.12
Each
units
LEILOCK KL1-P - - Power to Unlock No Various Options M20 143mm 63mm 41.5mm 230 V ac - 1NO
RS Stock No. 178-3144
Mfr. Part No.8 10 BJ 28
BrandMecalectro
$275.38
Each
units
- - - - Power to Lock No Various Options - 65mm 30mm 30mm 24 V dc - -
RS Stock No. 826-3993
Mfr. Part No.201001
BrandIDEM
$252.46
Each
units
SEZYLOCK KLP - - Power to Unlock No Various Options M20 160mm 46mm 45.5mm 24 V ac/dc - 2NO
RS Stock No. 742-0726
Mfr. Part No.AZM 170SK-11/02ZRK-2197 24VAC/DC
BrandSchmersal
$471.67
Each
units
- AZM 170 - - Power to Unlock No Various Options 1/2 NPT 30mm 108mm 100.5mm 24 V ac/dc - 1NO
RS Stock No. 498-959
Mfr. Part No.3SE5322-0SD21
BrandSiemens
$334.10
Each
units
Sirius 3SE5 - - Power to Unlock - Various Options M20 54mm 43.8mm 159mm 24 V dc - 1NO
RS Stock No. 617-5071
Mfr. Part No.AZM 161SK-12/12RK-110/230
BrandSchmersal
$441.94
Each
units
- AZM 161 - - Power to Unlock No Various Options M16 90mm 30mm 130mm 110 V ac, 230 V ac - 2NO
RS Stock No. 739-0631
Mfr. Part No.XCSLE2525312
$316.59
Each
units
Preventa XCS-LE - - Power to Unlock No Key M20 205mm 51mm 43.5mm 24 V ac/dc - -
RS Stock No. 741-8685
Mfr. Part No.AZM 170-02ZRKA 24 VAC/DC
BrandSchmersal
$268.98
Each
units
- AZM 170 - - Power to Lock No Various Options 1/2 NPT 30mm 90mm 84mm 24 V ac/dc - -
RS Stock No. 397-2188
Mfr. Part No.XCSE7311
$760.42
Each
units
Preventa XCS-E - - Power to Unlock Yes Key PG13.5 98mm 44mm 146mm 24 V ac/dc - -
RS Stock No. 746-7286
Mfr. Part No.D4NL-4CFA-B
BrandOmron
$335.98
Each
units
- D4NL - - Power to Unlock - Various Options M20 88.5mm 95mm 35.5mm 24 V dc - NC/NO
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