11 Replies
David Warmer

Here's a step-by-step guide on how to wire a 3-pin plug:

You will need:

  • A 3-pin plug
  • A screwdriver
  • A wire cutter/stripper
  • Three wires (live, neutral, and earth)


  1. Cut the wires to the appropriate length, leaving enough excess to work with but not too much that it gets in the way.
  2. Remove about 2-3 cm of insulation from the end of each wire using the wire stripper. Make sure not to cut into the wire strands.
  3. Open the plug by loosening the screws on the cover, and then lift the cover off.
  4. Loosen the screws for the terminals, but do not remove them entirely. You should see three terminals: live (brown), neutral (blue), and earth (green and yellow).
  5. Connect the live wire to the live terminal (brown). Make sure the wire is wrapped around the screw in a clockwise direction, so it tightens as you tighten the screw. Tighten the screw securely.
  6. Connect the neutral wire to the neutral terminal (blue) in the same way as the live wire. Tighten the screw securely.
  7. Connect the earth wire to the earth terminal (green and yellow) in the same way as the other wires. Tighten the screw securely.
  8. Once all wires are connected, check that none of the wires are loose and that there is no exposed wire outside of the terminals.
  9. Close the cover over the plug and secure it with the screws.

Note: It is important to ensure that the wires are connected to the correct terminals and that the screws are tightened securely. Failure to do so can result in electrical hazards or damage to equipment. If you are unsure or not confident, it is always best to consult a qualified electrician.

Mr Simon


  • Turn off the power supply before you begin. You should also unplug any device that you will be using the plug for.

  • Remove the cover of the 3-pin plug by unscrewing the screws that hold it in place. This will give you access to the three terminals inside the plug.

  • Cut the cable to the desired length, and then use a wire stripper or sharp knife to strip about 2-3 cm of the outer insulation from the cable. Be careful not to cut the inner insulation of the wires.

  • You should now see three wires: one brown wire (live), one blue wire (neutral), and one green/yellow wire (earth).

  • Insert the stripped wires into their respective terminals on the 3-pin plug. The brown wire should go into the terminal marked "L" for life, the blue wire should go into the terminal marked "N" for neutral, and the green/yellow wire should go into the terminal marked "E" for the earth.

  • Once the wires are inserted, tighten the screws on the terminals to hold the wires securely in place.

  • Make sure there are no loose strands of wire protruding from the terminals. If there are, trim them off.

  • If desired, you can wrap electrical tape around the base of the plug to help secure the cable and prevent the wires from coming loose.

  • Finally, replace the cover of the 3-pin plug and tighten the screws to hold it in place.

  • Plug in your device and switch on the power supply to test your newly wired plug.

It is important to note that improper wiring of a plug can be dangerous and could result in electrical shock or a fire hazard. If you are not comfortable with this process, it is recommended that you seek the assistance of a qualified electrician.

Monte Ashworth

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