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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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    In Stock

    Allen-Bradley

    Allen-Bradley 700-HN202 700H Control Relay (New Surplus)

    About Allen-Bradley 700-HN202Product Overview Allen-Bradley 700-HN202 is a 700H control relay used for switching and control functions in industrial automation systems. Control relays are commonly installed in control panels and OEM equipment for...

    $89.98
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  • Allen-Bradley 700-HN201 700H Control Relay New Surplus
    In Stock

    Allen-Bradley

    Allen-Bradley 700-HN201 700H Control Relay (New Surplus)

    About Allen-Bradley 700-HN201Product Overview Allen-Bradley 700-HN201 is a 700H control relay used for switching and control functions in industrial automation systems. Control relays are commonly installed in control panels and OEM equipment for...

    $29.55
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  • Allen-Bradley 700-HN200 700H Control Relay New Surplus

    Allen-Bradley

    Allen-Bradley 700-HN200 700H Control Relay (New Surplus)

    About Allen-Bradley 700-HN200Product Overview Allen-Bradley 700-HN200 is a 700H control relay used for switching and control functions in industrial automation systems. Control relays are commonly installed in control panels and OEM equipment for...

    $27.94
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  • Allen-Bradley 700-HN182 700H Control Relay New Surplus

    Allen-Bradley

    Allen-Bradley 700-HN182 700H Control Relay (New Surplus)

    About Allen-Bradley 700-HN182Product Overview Allen-Bradley 700-HN182 is a 700H control relay used for switching and control functions in industrial automation systems. Control relays are commonly installed in control panels and OEM equipment for...

    $20.39
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  • Allen-Bradley 700-HN181 700H Control Relay New Surplus

    Allen-Bradley

    Allen-Bradley 700-HN181 700H Control Relay (New Surplus)

    About Allen-Bradley 700-HN181Product Overview Allen-Bradley 700-HN181 is a 700H control relay used for switching and control functions in industrial automation systems. Control relays are commonly installed in control panels and OEM equipment for...

    $20.39
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  • Allen-Bradley 700-HN180R 700H Control Relay New Surplus
    In Stock

    Allen-Bradley

    Allen-Bradley 700-HN180R 700H Control Relay (New Surplus)

    About Allen-Bradley 700-HN180RProduct Overview Allen-Bradley 700-HN180R is a 700H control relay used for switching and control functions in industrial automation systems. Control relays are commonly installed in control panels and OEM equipment for...

    $25.37
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  • Allen-Bradley 700-HN180G 700H Control Relay New Surplus
    In Stock

    Allen-Bradley

    Allen-Bradley 700-HN180G 700H Control Relay (New Surplus)

    About Allen-Bradley 700-HN180GProduct Overview Allen-Bradley 700-HN180G is a 700H control relay used for switching and control functions in industrial automation systems. Control relays are commonly installed in control panels and OEM equipment for...

    $261.00
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    Allen-Bradley

    Allen-Bradley 700-HN180B 700H Control Relay (New Surplus)

    About Allen-Bradley 700-HN180BProduct Overview Allen-Bradley 700-HN180B is a 700H control relay used for switching and control functions in industrial automation systems. Control relays are commonly installed in control panels and OEM equipment for...

    $25.37
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  • Allen-Bradley 700-HN177 700H Control Relay New Surplus
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    Allen-Bradley

    Allen-Bradley 700-HN177 700H Control Relay (New Surplus)

    About Allen-Bradley 700-HN177Product Overview Allen-Bradley 700-HN177 is a 700H control relay used for switching and control functions in industrial automation systems. Control relays are commonly installed in control panels and OEM equipment for...

    $153.00
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  • Allen-Bradley 700-HN171 700H Control Relay New Surplus

    Allen-Bradley

    Allen-Bradley 700-HN171 700H Control Relay (New Surplus)

    About Allen-Bradley 700-HN171Product Overview Allen-Bradley 700-HN171 is a 700H control relay used for switching and control functions in industrial automation systems. Control relays are commonly installed in control panels and OEM equipment for...

    $35.41
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  • Allen-Bradley 700-HN167 700H Control Relay New Surplus
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    Allen-Bradley

    Allen-Bradley 700-HN167 700H Control Relay (New Surplus)

    About Allen-Bradley 700-HN167Product Overview Allen-Bradley 700-HN167 is a 700H control relay used for switching and control functions in industrial automation systems. Control relays are commonly installed in control panels and OEM equipment for...

    $32.92
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  • Allen-Bradley 700-HN165 700H Control Relay New Surplus
    In Stock

    Allen-Bradley

    Allen-Bradley 700-HN165 700H Control Relay (New Surplus)

    About Allen-Bradley 700-HN165Product Overview Allen-Bradley 700-HN165 is a 700H 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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