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 Rated stroke Power to Lock / Unlock Actuator Included Actuator Type Conduit Entry Length Width Depth Supply Voltage Maximum AC Voltage
RS Stock No. 862-1706
Mfr. Part No.D4SL-N4CFA
BrandOmron
HK$1,480.26
Each
units
- D4SL-N - - - Power to Unlock No Various Options M20 39mm 179.5mm 39mm 24 V dc -
RS Stock No. 814-7078
Mfr. Part No.XCSL764F3
HK$7,258.13
Each
units
- XCS-L - - - Power to Unlock Yes Key 1/2 NPT 7.64in 2.99in 1.73in 110 V ac -
RS Stock No. 263-3731
Mfr. Part No.XCSE5332
HK$3,700.65
Each
units
Preventa XCS-E - - - Power to Unlock Yes Key M20 98mm 44mm 146mm 110/120 V ac -
New
RS Stock No. 206-5772
Mfr. Part No.103013486
HK$5,684.42
Each
units
AZM201 AZM201Z-I2-ST2-T-1P2PW 1P-Diagnostic, 2P-Safety - 7.5 +0.5/-2.5mm Power to Unlock - - - - - - 26.4 V dc -
RS Stock No. 397-2217
Mfr. Part No.XCSE7341
HK$3,631.78
Each
units
Preventa XCS-E - - - Power to Unlock Yes Key PG13.5 98mm 44mm 146mm 230 V ac -
RS Stock No. 820-3783
Mfr. Part No.D4SLN4PDAD
BrandOmron
HK$1,776.78
Each
units
- D4SL-N - - - Power to Unlock No Various Options M20 39mm 39mm 179.9mm 24 V dc -
RS Stock No. 146-5795
Mfr. Part No.AZM161SK-12/12RI-024-B1
BrandSchmersal
HK$2,548.79
Each
units
- AZM 161 3P - - Power to Unlock Yes Coded M20 130mm 90mm 30mm 24 V ac/dc 24V
RS Stock No. 862-1712
Mfr. Part No.D4SL-N4EFG-D
BrandOmron
HK$1,547.70
Each
units
- D4SL-N - - - Power to Lock No Various Options M20 39mm 179.5mm 39mm 24 V dc -
RS Stock No. 826-3975
Mfr. Part No.450001
BrandIDEM
HK$1,502.93
Each
units
RAMZLOCK KLTM - - - Power to Unlock No Various Options M20 155mm 105mm 46.5mm 24 V dc -
RS Stock No. 763-7075
Mfr. Part No.3SE5312-0SG11
BrandSiemens
HK$4,485.13
Each
units
Sirius 3SE5 - - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 24 V dc -
RS Stock No. 301-9984
Mfr. Part No.XCSTE7312
HK$1,717.70
Each
units
Preventa XCS-TE - - - Power to Unlock - - M16 93.5mm 33mm 110mm 24 V ac/dc -
RS Stock No. 757-9203
Mfr. Part No.D4NL-4EFG-B
BrandOmron
HK$1,931.40
Each
units
- D4NL - - - Power to Lock - Various Options M20 95mm 88.5mm 35.5mm 24 V dc -
RS Stock No. 252-3820
Mfr. Part No.XCSE5511
HK$5,746.82
Each
units
Preventa XCS-E - - - Power to Lock Yes Key PG13.5 98mm 44mm 146mm 24 V ac/dc -
RS Stock No. 739-0574
Mfr. Part No.XCSLF2725312
HK$1,452.78
Each
units
Preventa XCS-LF - - - Power to Unlock Yes Key M20 205mm 51mm 43.5mm 24 V ac/dc -
RS Stock No. 136-3175
Mfr. Part No.6018119046
HK$1,843.00
Each
units
- SLK DP - - Power to Unlock No Various Options M20 42.5mm 51mm 184mm 110 V ac, 230 V ac 110 V, 230 V
RS Stock No. 133-0068
Mfr. Part No.XCSLE2727512
HK$1,183.92
Each
units
Preventa XCS-LE DP - - Power to Lock No Key M20 44mm 51mm 205mm 24 V ac/dc 240V
RS Stock No. 397-2223
Mfr. Part No.XCSTE7311
HK$1,690.48
Each
units
Preventa XCS-TE - - - Power to Unlock - - PG11 93.5mm 33mm 110mm 24 V ac/dc -
RS Stock No. 123-7513
Mfr. Part No.205021
BrandIDEM
HK$2,761.09
Each
units
HYGIELOCK KL3-SS-P2L - - - Power to Lock No Various Options M20 48mm 177mm 47mm 24 V dc -
RS Stock No. 146-5800
Mfr. Part No.AZM170-11ZRI-B1 24VAC/DC
BrandSchmersal
HK$2,414.93
Each
units
- AZM 170 DP - - Power to Unlock Yes Coded M20 90mm 84mm 30mm 24 V ac/dc 24V
RS Stock No. 820-3787
Mfr. Part No.D4SLN4PDGD
BrandOmron
HK$1,776.78
Each
units
- D4SL-N - - - Power to Lock No Various Options M20 39mm 39mm 179.9mm 24 V dc -