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 Rated stroke Supply Voltage Actuator Type Safety Contacts Conduit Entry Length Housing Material Width
RS Stock No. 739-0638
Mfr. Part No.XCSLE2525342
HK$1,313.98
Each
units
Preventa XCS-LE - - Power to Unlock Yes - 230 V ac/dc Key 1NO/1NC M20 205mm Plastic 51mm
RS Stock No. 814-6996
Mfr. Part No.XCSE5513
HK$10,303.02
Each
units
Preventa XCS-E - - Power to Lock Yes - 24 V ac/dc Key 2NO/1NC 1/2 NPT 146mm Metal 98mm
RS Stock No. 861-4657
Mfr. Part No.D4NL-2EFA-B
BrandOmron
HK$2,027.97
Each
units
- D4NL - - Power to Unlock - - 24 V dc Various Options 2NC/1NO 1/2 NPT 39mm Plastic 179.5mm
RS Stock No. 263-3810
Mfr. Part No.XCSE7532
HK$10,528.96
Each
units
Preventa XCS-E - - Power to Lock Yes - 120 V ac Key 1NO/1NC PG13.5 98mm Metal 44mm
RS Stock No. 252-3820
Mfr. Part No.XCSE5511
HK$6,094.50
Each
units
Preventa XCS-E - - Power to Lock Yes - 24 V ac/dc Key 2NO/1NC PG13.5 98mm Metal 44mm
RS Stock No. 739-0603
Mfr. Part No.XCS LF3535343
HK$3,325.64
Each
units
Preventa XCS-LF - - Power to Unlock Yes - 230 V ac/dc Key 2NO/1NC 1/2 in 205mm Metal 51mm
New
RS Stock No. 214-6737
Mfr. Part No.D4SL-N4GFA-D
BrandOmron
HK$1,522.66
Each
units
- D4SL - 3NC + 1NC/1NO Power to Unlock - - 24 V dc - - - - - -
RS Stock No. 198-655
Mfr. Part No.XCSTE7341
HK$2,507.75
Each
units
Preventa XCS TE - - Power to Unlock - - 230 V ac/dc - 2NC PG11, 1/2 in 94mm Plastic 110mm
RS Stock No. 263-3753
Mfr. Part No.XCSE7312
HK$5,191.26
Each
units
Preventa XCS-E - - Power to Unlock No - 24 V ac/dc Key 1NO/2NC PG13.5 98mm Metal 44mm
RS Stock No. 739-0574
Mfr. Part No.XCSLF2725312
HK$1,452.78
Each
units
Preventa XCS-LF - - Power to Unlock Yes - 24 V ac/dc Key 1NO/1NC M20 205mm Metal 51mm
RS Stock No. 820-3796
Mfr. Part No.D4SLN4QDAD
BrandOmron
HK$1,851.13
Each
units
- D4SL-N - - Power to Unlock No - 24 V dc Various Options 3NC M20 39mm Metal 39mm
RS Stock No. 814-7040
Mfr. Part No.XCSTE7333
HK$3,815.99
Each
units
Preventa XCS-TE - - Power to Unlock Yes - 120 V ac Key 2NC 1/2 NPT 3.67in Plastic 4.32in
RS Stock No. 880-1775
Mfr. Part No.AZM 200SK-T-1P2PWA
BrandSchmersal
HK$4,116.96
Each
units
- AZM 200 - - Power to Lock No - 24 V dc Various Options 2 PNP M12 40mm Plastic 220mm
RS Stock No. 880-1738
Mfr. Part No.AZM300B-ST-1P2P
BrandSchmersal
HK$4,821.07
Each
units
- AZM 300 - - Power to Unlock No - 24 V dc Various Options 2 PNP M12 85mm Plastic 100mm
RS Stock No. 763-6937
Mfr. Part No.3SE5322-0SB21
BrandSiemens
HK$2,689.00
Each
units
Sirius 3SE5 - - Power to Lock - - 24 V dc Various Options 2NC M20 54mm Plastic 43.8mm
New
RS Stock No. 206-5772
Mfr. Part No.103013486
HK$6,019.70
Each
units
AZM201 AZM201Z-I2-ST2-T-1P2PW 1P-Diagnostic, 2P-Safety - Power to Unlock - 7.5 +0.5/-2.5mm 26.4 V dc - - - - - -
RS Stock No. 820-3793
Mfr. Part No.D4SLN4RDAD
BrandOmron
HK$1,851.13
Each
units
- D4SL-N - - Power to Unlock No - 24 V dc Various Options 3NC M20 39mm Metal 39mm
RS Stock No. 826-3975
Mfr. Part No.450001
BrandIDEM
HK$1,565.83
Each
units
RAMZLOCK KLTM - - Power to Unlock No - 24 V dc Various Options 2NC M20 155mm Metal 105mm
RS Stock No. 301-9984
Mfr. Part No.XCSTE7312
HK$1,803.59
Each
units
Preventa XCS-TE - - Power to Unlock - - 24 V ac/dc - 2NC M16 93.5mm Plastic 33mm
RS Stock No. 763-6952
Mfr. Part No.3SE5322-0SE23
BrandSiemens
HK$3,179.91
Each
units
Sirius 3SE5 - - Power to Lock - - 230 V ac Various Options 2NC M20 54mm Plastic 43.8mm