Cool Wiring Two 3 Way Switches

The main difference between 2 way and 3.

Wiring two 3 way switches. Wiring a 3 way switch isn t that difficult. This is where diagrams come in handy and we are including them below along with step by step wiring instructions in the video format. This method is depicted in the diagram at the top of this post.

A three conductor cable with a ground is then installed between the two 3 way switch boxes. This is the 3 wire cable which you must have to wire a 3 way light switch. The three terminals are usually named com l1 and l2 but sometimes com 1 way and 2 way are also used.

It s likely you ll also need to replace the existing switch box with a larger one to accommodate the extra wires for the 3 way switch. A 3 way switch allows you to turn a light on or off from two different switches. The answer to how it works is to have an extra hot wire that runs between the two switch boxes.

Before you begin wiring 3 way switches you must understand this in order for you to have a three way circuit you should have three way switches. Pick the diagram that is most like the scenario you are in and see if you can wire your switch. 3 way switch wiring diagram.

I think that the most common method used to wire a set of 3 way switches is to bring the two wire line cable into one switch box and bring the two wire load cable into the other switch box. As you see in the 2 way switch diagram below you will find that the phase live is connected with the common of the first 2 way switch. One end of the bulb is connected with the common terminal of the second switch and another.

With these diagrams below it will take the guess work out of wiring. Before proceeding an important component called a two way light switch is the main element of the 2 way switching irrespective of the type of wiring used. If you are going to install a new one then go for three wire control methods.