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 Power to Lock / Unlock Series Pole Configuration Supply Voltage Actuator Included Rated stroke Range Actuator Type Safety Contacts Conduit Entry Normal State Configuration Auxiliary Contacts Length Housing Material
RS Stock No. 763-7047
Mfr. Part No.3SE5312-0SB11
BrandSiemens
HK$3,739.17
Each
units
Power to Lock 3SE5 - 24 V dc - - Sirius Various Options 2NC M20 - 1NO 54mm Metal
RS Stock No. 763-6940
Mfr. Part No.3SE5322-0SE21
BrandSiemens
HK$3,226.08
Each
units
Power to Lock 3SE5 - 24 V dc - - Sirius Various Options 2NC M20 - 1NO 54mm Plastic
RS Stock No. 498-959
Mfr. Part No.3SE5322-0SD21
BrandSiemens
HK$2,238.43
Each
units
Power to Unlock 3SE5 - 24 V dc - - Sirius Various Options 2NC M20 - 1NO 54mm Plastic
RS Stock No. 763-6996
Mfr. Part No.3SE5322-1SG21
BrandSiemens
HK$4,098.01
Each
units
Power to Lock 3SE5 - 24 V dc - - Sirius Various Options 2NC M20 - 1NO 54mm Plastic
RS Stock No. 749-7690
Mfr. Part No.3SE5312-0SD13
BrandSiemens
HK$3,607.71
Each
units
Power to Unlock 3SE5 - 230 V ac No - Sirius Various Options 2NC M20 - 1NO 184.1mm Metal
RS Stock No. 763-7038
Mfr. Part No.3SE5312-1SB11
BrandSiemens
HK$3,956.32
Each
units
Power to Lock 3SE5 - 24 V dc - - Sirius Various Options 2NC M20 - 1NO 54mm Metal
RS Stock No. 763-7031
Mfr. Part No.3SE5322-3SJ23
BrandSiemens
HK$4,577.55
Each
units
Power to Lock 3SE5 - 230 V ac - - Sirius Various Options 2NC M20 - 1NO 54mm Plastic
RS Stock No. 763-7090
Mfr. Part No.3SE5312-1SG11
BrandSiemens
HK$4,915.41
Each
units
Power to Lock 3SE5 - 24 V dc - - Sirius Various Options 2NC M20 - 1NO 54mm Metal
RS Stock No. 763-6946
Mfr. Part No.3SE5322-0SD23
BrandSiemens
HK$2,768.33
Each
units
Power to Lock 3SE5 - 230 V ac - - Sirius Various Options 2NC M20 - 1NO 54mm Plastic
RS Stock No. 498-971
Mfr. Part No.3SE5312-1SJ11
BrandSiemens
HK$5,317.76
Each
units
Power to Unlock 3SE5 - 24 V dc - - Sirius Various Options 2NC M20 - 1NO 54mm Metal
RS Stock No. 763-6984
Mfr. Part No.3SE5322-1SE21
BrandSiemens
HK$3,405.51
Each
units
Power to Lock 3SE5 - 24 V dc - - Sirius Various Options 2NC M20 - 1NO 54mm Plastic
RS Stock No. 498-983
Mfr. Part No.3SE5322-1SD21
BrandSiemens
HK$3,001.01
Each
units
Power to Unlock 3SE5 - 24 V dc - - Sirius Various Options 2NC M20 - 1NO 54mm Plastic
RS Stock No. 498-993
Mfr. Part No.3SE5312-0SD11
BrandSiemens
HK$3,630.15
Each
units
Power to Unlock 3SE5 - 24 V dc - - Sirius Various Options 2NC M20 - 1NO 54mm Metal
New
RS Stock No. 213-0798
Mfr. Part No.3SE5322-0SL21
BrandSiemens
HK$4,555.01
Each
units
- 3SE5 - 24 V dc - - SIRIUS - - - 2NC/1NO - - -
RS Stock No. 763-6952
Mfr. Part No.3SE5322-0SE23
BrandSiemens
HK$3,226.08
Each
units
Power to Lock 3SE5 - 230 V ac - - Sirius Various Options 2NC M20 - 1NO 54mm Plastic
RS Stock No. 763-7069
Mfr. Part No.3SE5312-0SF11
BrandSiemens
HK$4,283.29
Each
units
Power to Lock 3SE5 - 24 V dc - - Sirius Various Options 2NC M20 - 1NO 54mm Metal
RS Stock No. 749-7694
Mfr. Part No.3SE5322-1SB21
BrandSiemens
HK$3,095.30
Each
units
Power to Unlock 3SE5 - 230 V ac No - Sirius Various Options 2NC M20 - 1NO 184.1mm Plastic
RS Stock No. 763-7139
Mfr. Part No.3SE5312-0SB13
BrandSiemens
HK$3,684.83
Each
units
Power to Lock 3SE5 - 230 V ac - - Sirius Various Options 2NC M20 - 1NO 54mm Metal
RS Stock No. 498-987
Mfr. Part No.3SE5312-1SD11
BrandSiemens
HK$3,835.23
Each
units
Power to Unlock 3SE5 - 24 V dc - - Sirius Various Options 2NC M20 - 1NO 54mm Metal
RS Stock No. 763-7075
Mfr. Part No.3SE5312-0SG11
BrandSiemens
HK$4,708.33
Each
units
Power to Lock 3SE5 - 24 V dc - - Sirius Various Options 2NC M20 - 1NO 54mm Metal