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 Supply Voltage Actuator Included Range Actuator Type Safety Contacts Conduit Entry Normal State Configuration Auxiliary Contacts Length Housing Material Rated stroke Width
RS Stock No. 179-7564
BrandRS PRO
PHP1,688.38
Each
units
- - 600 V ac - - 90° Key - PG13.5 2NC - 31mm Plastic - 31mm
RS Stock No. 880-1895
Mfr. Part No.MZM 100 ST2-SD2PRE-A
BrandSchmersal
PHP38,489.01
Each
units
Power to Lock MZM 100 24 V dc No - Straight 2 PNP M12 - - 40mm Plastic - 179mm
RS Stock No. 549-619
Mfr. Part No.D4NS-4CF
BrandOmron
PHP5,133.45
Each
units
- D4NS - - - - 2NC/1NO - 2NC/1NO - 96mm Plastic - 31mm
RS Stock No. 741-8679
Mfr. Part No.AZM 170-02ZRK 24 VAC/DC
BrandSchmersal
PHP20,806.36
Each
units
Power to Unlock AZM 170 24 V ac/dc No - Various Options 2NC 1/2 NPT - - 30mm Plastic - 90mm
RS Stock No. 861-4650
Mfr. Part No.D4NS-2CF
BrandOmron
PHP4,433.33
Each
units
- D4NS - Yes - - - - 2NC/1NO - 31mm Plastic - 30mm
RS Stock No. 880-1909
Mfr. Part No.MZM 100-B1.1
BrandSchmersal
PHP6,953.92
Each
units
- - - - - Straight - - - - - - - -
RS Stock No. 746-7292
Mfr. Part No.D4NS-4AF
BrandOmron
PHP4,776.30
Each
units
- D4NS - - - - - - 1NC/1NO - 96mm Plastic - 31mm
RS Stock No. 880-1886
Mfr. Part No.MZM 100 ST2-SD2PREM-A
BrandSchmersal
PHP46,935.28
Each
units
Power to Lock MZM 100 24 V dc No - Straight 2 PNP M12 - - 40mm Plastic - 179mm
RS Stock No. 549-574
Mfr. Part No.D4NS-9AF
BrandOmron
PHP7,536.01
Each
units
- D4NS - - - - 1NC/1NO - 1NC/1NO - 96mm Plastic - 31mm
RS Stock No. 549-558
Mfr. Part No.D4NS-8CF
BrandOmron
PHP6,916.42
Each
units
- D4NS - - - - 2NC/1NO - 2NC/1NO - 96mm Plastic - 31mm
RS Stock No. 609-6748
Mfr. Part No.XCSE8311
PHP24,680.43
Each
units
Power to Unlock XCS-E 24 V ac/dc Yes Preventa Key 3NC PG13.5 - - 98mm Metal - 44mm
RS Stock No. 880-1892
Mfr. Part No.MZM 100 ST2-1P2PWRE-A
BrandSchmersal
PHP45,087.46
Each
units
Power to Lock MZM 100 24 V dc No - Straight 2 PNP M12 - 1 PNP 40mm Plastic - 179mm
RS Stock No. 757-9216
Mfr. Part No.D4NL-1AFG-B
BrandOmron
PHP29,372.40
Each
units
Power to Lock D4NL 24 V dc - - Various Options 1NC/1NO 1/2 NPT 1NC/1NO + 1NC/1NO NC/NO 95mm Plastic - 88.5mm
RS Stock No. 880-1898
Mfr. Part No.MZM 100 ST2-1P2PWREM-A
BrandSchmersal
PHP51,289.78
Each
units
Power to Lock MZM 100 24 V dc No - Straight 2 PNP M12 - 1 PNP 40mm Plastic - 179mm
RS Stock No. 826-3962
Mfr. Part No.221304
BrandIDEM
PHP9,542.69
Each
units
Power to Unlock KL1-P 110 V ac No LEILOCK Various Options 2NC M20 - 1NO 143mm Plastic - 63mm
RS Stock No. 862-1712
Mfr. Part No.D4SL-N4EFG-D
BrandOmron
PHP14,416.62
Each
units
Power to Lock D4SL-N 24 V dc No - Various Options 2NC/1NO M20 - NC/NO 39mm Metal - 179.5mm
RS Stock No. 862-1715
Mfr. Part No.D4SL-N4AFG
BrandOmron
PHP15,356.56
Each
units
Power to Lock D4SL-N 24 V dc No - Various Options 1NC/1NO M20 - NC/NO 39mm Metal - 179.5mm
RS Stock No. 617-5065
Mfr. Part No.AZM 161SK-12/12RK-024
BrandSchmersal
PHP22,097.56
Each
units
Power to Unlock AZM 161 24 V ac/dc No - Various Options 4NC M16 - 2NO 90mm Plastic - 30mm
RS Stock No. 757-9203
Mfr. Part No.D4NL-4EFG-B
BrandOmron
PHP12,796.37
Each
units
Power to Lock D4NL 24 V dc - - Various Options 1NC/1NO M20 - 2NC/1NO 95mm Plastic - 88.5mm
RS Stock No. 549-552
Mfr. Part No.D4NS-4DF
BrandOmron
PHP4,104.21
Each
units
- D4NS - - - - 3NC - 3NC - 96mm Plastic - 31mm