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. 136-3174
Mfr. Part No.6018119045
MYR1,024.96
Each
units
- SLK DP - Power to Unlock No Various Options M20 42.5mm 51mm 184mm 24 V ac/dc 24V NC/NO
RS Stock No. 861-4632
Mfr. Part No.D4BL-2DRA
BrandOmron
MYR1,923.69
Each
units
- D4BL - - Power to Unlock - Various Options 1/2 NPT 116.5mm 123.5mm 46.3mm 24 V dc - 1NC
RS Stock No. 132-9169
Mfr. Part No.XCSTE7512
MYR1,344.29
Each
units
Preventa XCS-TE DP - Power to Unlock Yes Key M16 110mm 33mm 94mm 24 V ac/dc 240V 2NC
RS Stock No. 826-4016
Mfr. Part No.209001-PB
BrandIDEM
MYR1,813.28
Each
units
HYGIELOCK KL4-SS - - Power to Unlock No Various Options M20 198mm 48mm 47mm 24 V ac/dc - 1NO
RS Stock No. 252-3820
Mfr. Part No.XCSE5511
MYR2,426.40
Each
units
Preventa XCS-E - - Power to Lock Yes Key PG13.5 98mm 44mm 146mm 24 V ac/dc - -
RS Stock No. 746-7201
Mfr. Part No.D4BL-2CRA
BrandOmron
MYR1,936.68
Each
units
- D4BL - - Power to Unlock - Various Options 1/2 NPT 116.5mm 123.5mm 46.3mm 24 V dc - 1NC
RS Stock No. 826-3981
Mfr. Part No.450201
BrandIDEM
MYR1,535.18
Each
units
RAMZLOCK KLTM-RFID - - Power to Unlock Yes Coded RFID M20 155mm 105mm 46.5mm 24 V dc - 1NO
RS Stock No. 826-3969
Mfr. Part No.220301
BrandIDEM
MYR1,390.73
Each
units
RYANLOCK KL1-SS - - Power to Unlock No Various Options M20 143mm 63mm 41.5mm 24 V ac/dc - 1NO
RS Stock No. 746-7286
Mfr. Part No.D4NL-4CFA-B
BrandOmron
MYR1,038.68
Each
units
- D4NL - - Power to Unlock - Various Options M20 88.5mm 95mm 35.5mm 24 V dc - NC/NO
RS Stock No. 146-5797
Mfr. Part No.AZM170-02ZRIA-B1 24VAC/DC
BrandSchmersal
MYR1,450.65
Each
units
- AZM 170 DP - Power to Lock Yes Coded M20 90mm 84mm 30mm 24 V ac/dc 24V -
RS Stock No. 609-6748
Mfr. Part No.XCSE8311
MYR1,707.61
Each
units
Preventa XCS-E - - Power to Unlock Yes Key PG13.5 98mm 44mm 146mm 24 V ac/dc - -
RS Stock No. 763-7031
Mfr. Part No.3SE5322-3SJ23
BrandSiemens
MYR1,847.12
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 230 V ac - 1NO
RS Stock No. 617-5122
Mfr. Part No.AZM415-11/11 ZPKE 24VAC/DC-M20
BrandSchmersal
MYR2,276.91
Each
units
- AZM 415 - - Power to Unlock No Various Options 1/2 NPT 100mm 46.5mm 130mm 24 V ac/dc - 2NO
RS Stock No. 763-6952
Mfr. Part No.3SE5322-0SE23
BrandSiemens
MYR1,303.79
Each
units
Sirius 3SE5 - - Power to Lock - Various Options M20 54mm 43.8mm 184.1mm 230 V ac - 1NO
RS Stock No. 746-7289
Mfr. Part No.D4NL-4CFA-B4
BrandOmron
MYR1,038.68
Each
units
- D4NL - - Power to Unlock - Various Options M20 88.5mm 95mm 35.5mm 24 V dc - NC/NO
RS Stock No. 880-1738
Mfr. Part No.AZM300B-ST-1P2P
BrandSchmersal
MYR2,682.32
Each
units
- AZM 300 - - Power to Unlock No Various Options M12 85mm 100mm 35mm 24 V dc - 1 PNP
RS Stock No. 826-3962
Mfr. Part No.221304
BrandIDEM
MYR774.67
Each
units
LEILOCK KL1-P - - Power to Unlock No Various Options M20 143mm 63mm 41.5mm 110 V ac - 1NO
RS Stock No. 826-3965
Mfr. Part No.221307
BrandIDEM
MYR774.67
Each
units
LEILOCK KL1-P - - Power to Unlock No Various Options M20 143mm 63mm 41.5mm 230 V ac - 1NO
RS Stock No. 746-7277
Mfr. Part No.D4NL-4AFA-B
BrandOmron
MYR1,038.68
Each
units
- D4NL - - Power to Unlock - Various Options 1/2 NPT 88.5mm 95mm 35.5mm 24 V dc - NC/NO
RS Stock No. 252-3791
Mfr. Part No.XCSE5311
MYR2,146.00
Each
units
Preventa XCS-E - - Power to Unlock Yes Key PG13.5 98mm 44mm 146mm 24 V ac/dc - -
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