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. 763-7047
Mfr. Part No.3SE5312-0SB11
BrandSiemens
$654.45
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 24 V dc - 1NO
RS Stock No. 498-993
Mfr. Part No.3SE5312-0SD11
BrandSiemens
$479.73
Each
units
Sirius 3SE5 - - Power to Unlock - Various Options M20 54mm 43.8mm 159mm 24 V dc - 1NO
RS Stock No. 498-959
Mfr. Part No.3SE5322-0SD21
BrandSiemens
$251.48
Each
units
Sirius 3SE5 - - Power to Unlock - Various Options M20 54mm 43.8mm 159mm 24 V dc - 1NO
RS Stock No. 763-7075
Mfr. Part No.3SE5312-0SG11
BrandSiemens
$553.54
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 24 V dc - 1NO
RS Stock No. 763-6937
Mfr. Part No.3SE5322-0SB21
BrandSiemens
$332.12
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 24 V dc - 1NO
RS Stock No. 763-7038
Mfr. Part No.3SE5312-1SB11
BrandSiemens
$465.21
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 24 V dc - 1NO
RS Stock No. 498-987
Mfr. Part No.3SE5312-1SD11
BrandSiemens
$354.52
Each
units
Sirius 3SE5 - - Power to Unlock - Various Options M20 54mm 43.8mm 159mm 24 V dc - 1NO
RS Stock No. 763-6934
Mfr. Part No.3SE5322-0SB23
BrandSiemens
$332.12
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 230 V ac - 1NO
RS Stock No. 498-971
Mfr. Part No.3SE5312-1SJ11
BrandSiemens
$552.99
Each
units
Sirius 3SE5 - - Power to Unlock - Various Options M20 54mm 43.8mm 159mm 24 V dc - 1NO
RS Stock No. 498-983
Mfr. Part No.3SE5322-1SD21
BrandSiemens
$367.25
Each
units
Sirius 3SE5 - - Power to Unlock - Various Options M20 54mm 43.8mm 159mm 24 V dc - 1NO
RS Stock No. 763-6946
Mfr. Part No.3SE5322-0SD23
BrandSiemens
$343.73
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 230 V ac - 1NO
RS Stock No. 763-6996
Mfr. Part No.3SE5322-1SG21
BrandSiemens
$397.49
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 24 V dc - 1NO
RS Stock No. 763-7031
Mfr. Part No.3SE5322-3SJ23
BrandSiemens
$431.45
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 230 V ac - 1NO
RS Stock No. 763-7053
Mfr. Part No.3SE5312-0SE11
BrandSiemens
$395.24
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 24 V dc - 1NO
RS Stock No. 763-6984
Mfr. Part No.3SE5322-1SE21
BrandSiemens
$335.56
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 24 V dc - 1NO
RS Stock No. 763-7090
Mfr. Part No.3SE5312-1SG11
BrandSiemens
$460.57
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 24 V dc - 1NO
RS Stock No. 763-6952
Mfr. Part No.3SE5322-0SE23
BrandSiemens
$429.87
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 230 V ac - 1NO
RS Stock No. 749-7694
Mfr. Part No.3SE5322-1SB21
BrandSiemens
$363.76
Each
units
Sirius 3SE5 - - Power to Unlock No Various Options M20 184.1mm 54mm 39.1mm 230 V ac - 1NO
RS Stock No. 763-7069
Mfr. Part No.3SE5312-0SF11
BrandSiemens
$415.51
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 24 V dc - 1NO
RS Stock No. 763-6940
Mfr. Part No.3SE5322-0SE21
BrandSiemens
$379.57
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 24 V dc - 1NO