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Control Relays

Control Relays for Industrial Automation

Control relays are used in industrial automation systems for switching, interlocks, signaling, and auxiliary control functions. They are commonly installed in control panels, OEM machinery, and industrial equipment where dependable logic switching and control circuit isolation are required.

Different control relay families support different contact arrangements, coil voltages, socket styles, and mounting methods. Organizing relays by series helps maintenance teams and engineers locate compatible replacements quickly and maintain consistency with installed panel designs. Whether you are replacing a failed relay or building out spare inventory, matching the correct relay family is important for reliable operation and easier maintenance.

Common applications

  • Interlocks and control circuit logic
  • Status signaling and pilot circuits
  • OEM machinery and industrial control panels
  • Auxiliary switching and interface functions
  • Maintenance replacement and spare inventory planning

Control relay families

Related categories

If you need help selecting the correct relay, confirm your coil voltage, contact arrangement, socket or mounting style, and any indicator or test-button requirements before installation.

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    Allen-Bradley

    Allen-Bradley 700-MP12 700M Control Relay (Refurbished)

    About Allen-Bradley 700-MP12Product Overview Allen-Bradley 700-MP12 is a 700M control relay used for switching and control functions in industrial automation systems. Control relays are commonly installed in control panels and OEM equipment for...

    $75.00
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  • Allen-Bradley 700-ML220A2 700M Control Relay Refurbished

    Allen-Bradley

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    About Allen-Bradley 700-ML220A2Product Overview Allen-Bradley 700-ML220A2 is a 700M control relay used for switching and control functions in industrial automation systems. Control relays are commonly installed in control panels and OEM equipment for...

    $165.00
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  • Allen-Bradley 700-ML220A1 700M Control Relay Refurbished

    Allen-Bradley

    Allen-Bradley 700-ML220A1 700M Control Relay (Refurbished)

    About Allen-Bradley 700-ML220A1Product Overview Allen-Bradley 700-ML220A1 is a 700M control relay used for switching and control functions in industrial automation systems. Control relays are commonly installed in control panels and OEM equipment for...

    $165.00
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  • Allen-Bradley 700-MB400CS4C-B40E 700M Control Relay Refurbished
    In Stock

    Allen-Bradley

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    About Allen-Bradley 700-MB400CS4C-B40EProduct Overview Allen-Bradley 700-MB400CS4C-B40E is a 700M control relay used for switching and control functions in industrial automation systems. Control relays are commonly installed in control panels and OEM...

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    Allen-Bradley

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    About Allen-Bradley 700-MB400A3Product Overview Allen-Bradley 700-MB400A3 is a 700M control relay used for switching and control functions in industrial automation systems. Control relays are commonly installed in control panels and OEM equipment for...

    $90.00
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  • Allen-Bradley 700-MB400A24 700M Control Relay Refurbished
    In Stock

    Allen-Bradley

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    About Allen-Bradley 700-MB400A24Product Overview Allen-Bradley 700-MB400A24 is a 700M control relay used for switching and control functions in industrial automation systems. Control relays are commonly installed in control panels and OEM equipment for...

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    Allen-Bradley

    Allen-Bradley 700-MB400A2 700M Control Relay (Refurbished)

    About Allen-Bradley 700-MB400A2Product Overview Allen-Bradley 700-MB400A2 is a 700M control relay used for switching and control functions in industrial automation systems. Control relays are commonly installed in control panels and OEM equipment for...

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    Allen-Bradley

    Allen-Bradley 700-MB400A1S 700M Control Relay (Refurbished)

    About Allen-Bradley 700-MB400A1SProduct Overview Allen-Bradley 700-MB400A1S is a 700M control relay used for switching and control functions in industrial automation systems. Control relays are commonly installed in control panels and OEM equipment for...

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    Allen-Bradley 700-MB400-A1 700M Control Relay (Refurbished)

    About Allen-Bradley 700-MB400-A1Product Overview Allen-Bradley 700-MB400-A1 is a 700M control relay used for switching and control functions in industrial automation systems. Control relays are commonly installed in control panels and OEM equipment for...

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    Allen-Bradley

    Allen-Bradley 700-MB310A24 700M Control Relay (Refurbished)

    About Allen-Bradley 700-MB310A24Product Overview Allen-Bradley 700-MB310A24 is a 700M control relay used for switching and control functions in industrial automation systems. Control relays are commonly installed in control panels and OEM equipment for...

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  • Allen-Bradley 700-MB310A2 700M Control Relay Refurbished
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    Allen-Bradley

    Allen-Bradley 700-MB310A2 700M Control Relay (Refurbished)

    About Allen-Bradley 700-MB310A2Product Overview Allen-Bradley 700-MB310A2 is a 700M control relay used for switching and control functions in industrial automation systems. Control relays are commonly installed in control panels and OEM equipment for...

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