How to Wire a Center Off Toggle Switch

Written by harvey birdman
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How to Wire a Center Off Toggle Switch
Center off toggle switches can be used to replace two switches with one. (switch image by Clark Duffy from

Wiring a centre off toggle switch is just like wiring any other switch, if you remember that the centre post is the power post and that the other two posts are output posts. This type of toggle switch is called a double pole throw toggle switch. Thread the wire through the eyes like normal and ensure that the power is flowing through the rest of the circuit. This toggle switch allows you to replace two switches with just one.

Skill level:

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Things you need

  • Double pole throw toggle switch
  • Electrical wire
  • Electrical tape
  • Wire striper

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  1. 1

    Strip half an inch from the electrical wires used for hooking up the components. The length of the wire depends on the distance between the switch and the components it will control. Six wires will go from the switch. Two power wires, two wires for component "A" and two wires for component "B."

  2. 2

    Hook up the wires going to component "A" and "B" to their respective electrical posts. Strip half an inch from the end of the wire. Most electrical components will have a post for each polarity; thread the raw metal wire through the eye of the post and wrap the rest of the exposed metal wire around the outside of the posts. Wrap the connected post with electrical tape to prevent in inadvertent short circuits.

  3. 3

    Attach the wires coming from component "A" to both two posts on the double pole toggle switch. Strip half an inch from each wire beforehand. The left wire goes to the left post and the right wire goes to the right post. Thread the exposed metal wire around each post then wrap in electrical tape.

  4. 4

    Repeat the above process for component "B" but hooking to the top posts on the double pole toggle switch this time. Ensure that all the posts (A and B) are fully wrapped in electrical tape before you move onto the next step; this prevents the risk of accidentally making a live circuit.

  5. 5

    Strip half an inch from the ends of two wires, each long enough to go from the toggle switch to the power source. Wire the switch first, following the same procedure as with the component wiring. Attach one wire to the negative polarity post and one to the positive polarity post on the power supply. Ensure that the toggle switch is in the middle "Off" position before you turn the power source on. Now when you flip the switch up in will engage component "A" and when you flip it down it will engage component "B."

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