Locking Style Safety Interlock Switches
Guard locking safety switches include a machine mounted switch and a guard mounted actuator that prevent access to an area by remaining locked together until the hazardous motion has come to a complete stop.
- Mechanically coded actuators use two independent operating elements, making it difficult to bypass safety functions
- Rotating head requires little or no tools to adjust to one of four positions
- Can be used to prevent access to a hazard, ensure critical processes are not interrupted, or secure material and equipment from theft or tampering
- Once locked, a machine guard door will not open, eliminating an opportunity for nuisance trips, even if exposed to frequent impact or prolonged vibration
 
- IP67-rated safety devices that resist dust, dirt, and some exposure to water and similar environmental challenges
 
- Design meets positive opening requirements for safety interlocks
- Available in power-to-lock and power-to-unlock models with rigid and flexible in-line actuators and a wide range of solenoid voltages
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    SI-LS42DMI  Interlock Body, Solenoid Locking 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 2 NC/1 NO; 1 NC
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42DMH  Interlock Body, Solenoid Locking 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 2 NC, 1 NC/1 NO
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42DSH  Interlock Body, Spring Locking 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 2 NC; 1 NC/1 NO
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42DMG  Interlock Body, Solenoid Locking 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 1 NC/1 NO; 1 NC/1 NO
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42DMJ  Interlock Body, Solenoid Locking 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 3 NC; 1 NC
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42DSI  Interlock Body, Spring Locking 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 2 NC/1 NO; 1 NC
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42DMMIF  Solenoid Locking: Flexible In-line 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 2 NC/1 NO; 1 NC
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42DSG  Interlock Body, Spring Locking 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 1 NC/1 NO; 1 NC/1 NO
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-GL42DS01-20Q01  SI-GL42 Series Safety Interlock Switch 
 Spring Lock/Solenoid Unlock; 24 V dc
 Contact Configuration: Actuator: 1 NO, Monitor: 2NC
 Connector: 1 x 8-pin M12 bottom
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    SI-LS42WSH  Interlock Body, Spring Locking 
 Solenoid Voltage: 110/230 V ac
 Contact Configuration: 2 NC; 1 NC/1 NO
 Dimensions: 170 x 43 x 46 mm; Plastic Housing
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    SI-LS42WSG  Interlock Body, Spring Locking 
 Solenoid Voltage: 110/230 V ac
 Contact Configuration: 1 NC/1 NO; 1 NC/1 NO
 Dimensions: 170 x 43 x 46 mm; Plastic Housing
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    SI-LS42DMSH  Spring Locking: Standard In-line 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 2 NC; 1 NC/1 NO
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42DMSHF  Spring Locking: Flexible In-line 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 2 NC; 1 NC/1 NO
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42DMMGF  Solenoid Locking: Flexible In-line 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 1 NC/1 NO; 1 NC/1 NO
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42DMMJF  Solenoid Locking: Flexible In-line 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 3 NC; 1 NC
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42DMMHF  Solenoid Locking: Flexible In-line 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 2 NC; 1 NC/1 NO
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42WMSH  Spring Locking: Straight In-line 
 Solenoid Voltage: 110/230 V ac
 Contact Configuration: 2 NC; 1 NC/1NO
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42DMMH  Solenoid Locking: Standard In-line 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 2 NC; 1 NC/1 NO
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42DSJ  Interlock Body, Spring Locking 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 3 NC; 1 NC
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42DMSG  Spring Locking: Standard In-line 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 1 NC/1 NO; 1 NC/1 NO
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42WMI  Interlock Body, Solenoid Locking 
 Solenoid Voltage: 110/230 V ac
 Contact Configuration: 2 NC/1 NO; 1 NC
 Dimensions: 170 x 43 x 46 mm; Plastic Housing
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    SI-LS42DMMG  Solenoid Locking: Standard In-line 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 1 NC/1 NO; 1 NC/1 NO
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42DMSIF  Spring Locking: Flexible In-line 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 2 NC/1 NO; 1 NC
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42WMG  Interlock Body, Solenoid Locking 
 Solenoid Voltage: 110/230 V ac
 Contact Configuration: 1 NC/1 NO; 1 NC/1 NO
 Dimensions: 170 x 43 x 46 mm; Plastic Housing
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    SI-LS42WMMGF  Solenoid Locking: Flexible In-line 
 Solenoid Voltage: 110/230 V ac
 Contact Configuration: 1 NC/1 NO; 1 NC/1 NO
 Dimensions: 170 x 43 x 46 mm; Plastic Housing
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    SI-LS42DMMI  Solenoid Locking: Straight In-line 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 2 NC/1 NO; 1 NC
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42DMSGF  Spring Locking: Flexible In-line 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 1 NC/1 NO; 1 NC/1 NO
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42WMH  Interlock Body, Solenoid Locking 
 Solenoid Voltage: 110/230 V ac
 Contact Configuration: 2 NC; 1 NC/1 NO
 Dimensions: 170 x 43 x 46 mm; Plastic Housing
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    SI-LS42WMSG  Spring Locking: Straight In-line 
 Solenoid Voltage: 110/230 V ac
 Contact Configuration: 1 NC/1 NO; 1 NC/1 NO
 Dimensions: 170 x 43 x 46 mm; Plastic Housing
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    SI-LS42DMSI  Spring Locking: Straight In-line 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 2 NC/1 NO; 1 NC
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42DMSJF  Spring Locking: Flexible In-line 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 3 NC; 1 NC
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42WMMIF  Solenoid Locking: Flexible In-line 
 Solenoid Voltage: 110/230 V ac
 Contact Configuration: 2 NC/1 NO; 1 NC
 Dimensions: 170 x 43 x 46 mm; Plastic Housing
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    SI-LS42WMSGF  Spring Locking: Flexible In-line 
 Solenoid Voltage: 110/230 V ac
 Contact Configuration: 1 NC/1 NO; 1 NC/1NO
 Dimensions: 170 x 43 x 46 mm; Plastic Housing
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    SI-LS42DMMJ  Solenoid Locking: Straight In-line 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 3 NC; 1 NC
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42DMSJ  Spring Locking: Straight In-line 
 Solenoid Voltage: 24 V ac/dc
 Contact Configuration: 3 NC; 1 NC
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42WMMG  Solenoid Locking: Straight In-line 
 Solenoid Voltage: 110/230 V ac
 Contact Configuration: 1 NC/1 NO; 1 NC/1 NO
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42WMMH  Solenoid Locking: Straight In-line 
 Solenoid Voltage: 110/230 V ac
 Contact Configuration: 2 NC; 1 NC/1 NO
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42WMMHF  Solenoid Locking: Flexible In-line 
 Solenoid Voltage: 110/230 V ac
 Contact Configuration: 2 NC; 1 NC/1 NO
 Dimensions: 170 x 43 x 46 mm; Plastic Housing
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    SI-LS42WMMI  Solenoid Locking: Straight In-line 
 Solenoid Voltage: 110/230 V ac
 Contact Configuration: 2 NC/1 NO; 1 NC
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42WMSHF  Spring Locking: Flexible In-line 
 Solenoid Voltage: 110/230 V ac
 Contact Configuration: 2 NC; 1 NC/1 NO
 Dimensions: 170 x 43 x 46 mm; Plastic Housing
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    SI-LS42WMSI  Spring Locking: Straight In-line 
 Solenoid Voltage: 110/230 V ac
 Contact Configuration: 2 NC/1 NO; 1 NC
 Dimensions: 170 x 43 x 46 mm; Plastic Housing
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    SI-LS42WMSIF  Spring Locking: Flexible In-line 
 Solenoid Voltage: 110/230 V ac
 Contact Configuration: 2 NC/1 NO; 1 NC
 Dimensions: 170 x 43 x 45 mm; Plastic Housing
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    SI-LS42WSI  Interlock Body, Spring Locking 
 Solenoid Voltage: 110/230 V ac
 Contact Configuration: 2 NC/1 NO; 1 NC
 Dimensions: 170 x 43 x 46 mm; Plastic Housing
