![]() ![]() Two-wire cables are also used to connect the lights together. In this example, the power is coming into the switch to the left through a two-wire cable and is going through the three-wire cable to another switch. If you need to connect more fixtures, you can duplicate the wiring for each new light. You can also download a PDF file for printing ( schematics & wiring). If power takes the usual route (light switch first), you can use the following diagrams for reference:Ĭlick on the image to enlarge it. Power at the 3-way switch (multiple lights). Electricity source and light are in between switches.Ĭase #1.Electricity source and light are connected to the same 3-way switch.The electricity source is connected to the light fixture first.The electricity source is connected to the 3-way switch first.In order to wire the 3-way switch properly, you will need to use one of the diagrams (that I will post below), and which one you use depends entirely on your need. This wire is connected to the main energy source and its destination is the black terminal (or a screw) of the 3-way switch.ģ-way switch wiring diagrams for multiple lights The third wire is connected between one of the traveler terminals of the two 3-way switches. ![]() The second wire is connected to the common terminal (or black screw) of the second 3-way switch and its destination is the corresponding terminal of the bulb (black). The first wire is connected to the main energy source and its destination is the common terminal (or the black screw) of one of the 3-way switches. There are three types of black wires coming from the 3-way switches (when wiring multiple lights). The white wire that comes from the switch cable needs to be connected directly to the white wire of the common cable (and then goes all the way to the appropriate terminal of the bulb). ![]() The purpose of this wire is to send electricity directly to the light bulb. Very often this is a bare copper wire that attaches to the green screw (or terminal) of the switch.
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