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Interlocks & Guard Switches

Interlocks and Guard Switches (Industrial Machine Safety Interlocking)

Interlocks and guard switches are critical components in industrial machine safety systems. These devices monitor the position of safety gates, guard doors, and protective barriers to ensure machinery operates only when safe conditions are met. When a guard is opened or removed, the interlock switch signals the safety circuit to stop machine motion and prevent hazardous operation.

Industrial interlocks are widely used in automated production lines, packaging equipment, robotic cells, conveyors, and assembly systems. Using the correct interlock series ensures compatibility with existing machine guarding hardware and helps maintain reliable safety performance in demanding industrial environments.

This category includes refurbished interlock switches and guard monitoring devices used for maintenance replacement and spare inventory. Maintaining compatible replacement hardware allows facilities to repair machines quickly and minimize production downtime.

Typical interlock applications

  • Safety gate monitoring for robotic cells
  • Guard door monitoring on packaging equipment
  • Access control for automated production lines
  • Protective enclosure monitoring for hazardous machinery
  • OEM machine safety integration

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When replacing an interlock device, verify mounting orientation, actuator compatibility, electrical connections, and application requirements before installation to ensure the safety system functions correctly.

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    About Allen-Bradley 440N-G02059Product Overview Allen-Bradley 440N-G02059 is a refurbished 440N safety interlock designed for industrial machine guarding and access control. It is commonly used to help prevent access to hazardous motion by monitoring...

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    About Allen-Bradley 440N-G02058Product Overview Allen-Bradley 440N-G02058 is a refurbished 440N safety interlock designed for industrial machine guarding and access control. It is commonly used to help prevent access to hazardous motion by monitoring...

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    Allen-Bradley

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    About Allen-Bradley 440N-G02055Product Overview Allen-Bradley 440N-G02055 is a refurbished 440N safety interlock designed for industrial machine guarding and access control. It is commonly used to help prevent access to hazardous motion by monitoring...

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  • Allen-Bradley 440N-G02052 440N Interlock New Surplus

    Allen-Bradley

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    About Allen-Bradley 440N-G02052Product Overview Allen-Bradley 440N-G02052 is a refurbished 440N safety interlock designed for industrial machine guarding and access control. It is commonly used to help prevent access to hazardous motion by monitoring...

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    About Allen-Bradley 440N-G02049Product Overview Allen-Bradley 440N-G02049 is a refurbished 440N safety interlock designed for industrial machine guarding and access control. It is commonly used to help prevent access to hazardous motion by monitoring...

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    Allen-Bradley

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    About Allen-Bradley 440N-G02048Product Overview Allen-Bradley 440N-G02048 is a refurbished 440N safety interlock designed for industrial machine guarding and access control. It is commonly used to help prevent access to hazardous motion by monitoring...

    $20.00
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  • Allen-Bradley 440N-G02046 440N Interlock New Surplus

    Allen-Bradley

    Allen-Bradley 440N-G02046 440N Interlock (New Surplus)

    About Allen-Bradley 440N-G02046Product Overview Allen-Bradley 440N-G02046 is a refurbished 440N safety interlock designed for industrial machine guarding and access control. It is commonly used to help prevent access to hazardous motion by monitoring...

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    About Allen-Bradley 440N-G02045Product Overview Allen-Bradley 440N-G02045 is a refurbished 440N safety interlock designed for industrial machine guarding and access control. It is commonly used to help prevent access to hazardous motion by monitoring...

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    About Allen-Bradley 440N-G02044Product Overview Allen-Bradley 440N-G02044 is a refurbished 440N safety interlock designed for industrial machine guarding and access control. It is commonly used to help prevent access to hazardous motion by monitoring...

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    About Allen-Bradley 440N-G02043Product Overview Allen-Bradley 440N-G02043 is a refurbished 440N safety interlock designed for industrial machine guarding and access control. It is commonly used to help prevent access to hazardous motion by monitoring...

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  • Allen-Bradley 440N-G02041 440N Interlock New Surplus

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    About Allen-Bradley 440N-G02041Product Overview Allen-Bradley 440N-G02041 is a refurbished 440N safety interlock designed for industrial machine guarding and access control. It is commonly used to help prevent access to hazardous motion by monitoring...

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  • Allen-Bradley 440N-G02040 440N Interlock New Surplus

    Allen-Bradley

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    About Allen-Bradley 440N-G02040Product Overview Allen-Bradley 440N-G02040 is a refurbished 440N safety interlock designed for industrial machine guarding and access control. It is commonly used to help prevent access to hazardous motion by monitoring...

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