How to wire an E-stop button

Written by bob white
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How to wire an E-stop button
Wiring an E-stop button provides a smart safety device. (Dynamic Graphics Group/Dynamic Graphics Group/Getty Images)

An E-stop or emergency stop button provides a quick way to disconnect the power for any device. They typically are used in work environments where a potentially harmful device is used by an operator. In an emergency situation, the E-stop button is pushed and the device powers down. As such, the switch should be mounted in a location that is quickly reachable.

Skill level:
Moderate

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Things you need

  • Non-contact voltage detector
  • Wire cutters
  • Screwdriver

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Instructions

  1. 1

    Turn the power off to the circuit you are working on at the distribution panel. Confirm the power is off by touching a non-contact voltage detector to the insulative cover of the wires.

  2. 2

    Cut the power wire for the device on which are installing the E-stop switch.

  3. 3

    Strip 3/8 inches of insulation off the white and black wires on both sides of the cut ends.

  4. 4

    Loosen the two terminals on the E-stop switch with a screwdriver. Slide one of the black wires under one terminal and the other black wire under the other terminal. Tighten down the terminals.

  5. 5

    Twist the two white wires together with pliers and install a wire nut on top.

  6. 6

    Test the button to determine if it turns the power off to the device when pushed.

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