3 Way Light Switch Wiring Diagram. Connect the Line brown wire coming from the light together with the 3 CoreEarth cable black wire in to the L1 terminal of the two-way switch. This 3 Way Light Switch Diagram shows connections when the power comes into the first switch on to the second switch and then on to two or more lights switched by the 3-way circuit.
The following 3 diagrams show the wiring for a specially made dimmer that can be used in these circuits in place of either of the the 3 way switches. The power source is coming to light fitting first. Here are some wiring cases.
Learn to make a 3 way switch diagram by using these free and printable examples of three way switch diagram in the following images.
In order to wire the 3-way switch properly you will need to use one of the diagrams that we will post below and which one you use depends entirely on your need. To get started take a look at the first diagram below. The exact cable you use depends on the gauge of the existing wiring in the rest of the circuit but in most cases the correct cable will be either 12-3 or 14-3. The electricity source and light is in between switches.