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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.

  • Allen-Bradley 700-HN177 700H Control Relay
    In Stock

    Allen-Bradley

    Allen-Bradley 700-HN177 700H Control Relay (Refurbished)

    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...

    $21.60
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  • Allen-Bradley 700-HN171 700H Control Relay Refurbished
    In Stock

    Allen-Bradley

    Allen-Bradley 700-HN171 700H Control Relay (Refurbished)

    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...

    $30.93
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  • Allen-Bradley 700-HN167 700H Control Relay Refurbished
    In Stock

    Allen-Bradley

    Allen-Bradley 700-HN167 700H Control Relay (Refurbished)

    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...

    $30.93
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  • Allen-Bradley 700-HN165 700H Control Relay Refurbished
    In Stock

    Allen-Bradley

    Allen-Bradley 700-HN165 700H Control Relay (Refurbished)

    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...

    $225.00
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  • Allen-Bradley 700-HN163 700H Control Relay Refurbished
    In Stock

    Allen-Bradley

    Allen-Bradley 700-HN163 700H Control Relay (Refurbished)

    About Allen-Bradley 700-HN163Product Overview Allen-Bradley 700-HN163 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-HN160 700H Control Relay

    Allen-Bradley

    Allen-Bradley 700-HN160 700H Control Relay (Refurbished)

    About Allen-Bradley 700-HN160Product Overview Allen-Bradley 700-HN160 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...

    $28.95
    Ask for Quote
  • Allen-Bradley 700-HN159 700H Control Relay

    Allen-Bradley

    Allen-Bradley 700-HN159 700H Control Relay (Refurbished)

    About Allen-Bradley 700-HN159Product Overview Allen-Bradley 700-HN159 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...

    $22.73
    Ask for Quote
  • Allen-Bradley 700-HN158 700H Control Relay

    Allen-Bradley

    Allen-Bradley 700-HN158 700H Control Relay (Refurbished)

    About Allen-Bradley 700-HN158Product Overview Allen-Bradley 700-HN158 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...

    $21.80
    Ask for Quote
  • Allen-Bradley 700-HN157 700H Control Relay

    Allen-Bradley

    Allen-Bradley 700-HN157 700H Control Relay (Refurbished)

    About Allen-Bradley 700-HN157Product Overview Allen-Bradley 700-HN157 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...

    $21.80
    Ask for Quote
  • Allen-Bradley 700-HN156 700H Control Relay

    Allen-Bradley

    Allen-Bradley 700-HN156 700H Control Relay (Refurbished)

    About Allen-Bradley 700-HN156Product Overview Allen-Bradley 700-HN156 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...

    $21.70
    Ask for Quote
  • Allen-Bradley 700-HN154 700H Control Relay
    In Stock

    Allen-Bradley

    Allen-Bradley 700-HN154 700H Control Relay (Refurbished)

    About Allen-Bradley 700-HN154Product Overview Allen-Bradley 700-HN154 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...

    $72.00
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