How To Wire A 4 Way Light Switch Diagram

The two wiring diagrams above are of a 3 way switch setup and the same basic setup with a 4 way light switch added.

How to wire a 4 way light switch diagram. Some 4 way switches may have the in and out pairs opposite each other rather than top and bottom. This circuit is wired the same way as the 3 way lights at this link. The white wire of the cable going to the switch is attached to the black line in the fixture box using a wirenut. Attach the black and white blue traveler wires entering the 4 way switch box to the in terminals often the top terminals on the 4 way switch black on the left top pole and white blue on the right top pole.

For a 4 way light circuit to work you need two 3 way switches and at least one 4 way switch. If additional 4 way switches are needed they will also go between the 3 way switches. 3 way light switch with power feed via the light two lights two lights between 3 way switches power via a switch two lights between 3 way switches power via a light how to wire a 4 way light switch with power feed via the light switch. While the physical location of the 4 way switch may be anywhere the electrical location of the switch is always between the two 3 way switches.

Quick 4 way light wiring. I have a few of the most common ways in wiring a 4 way switch to help you with your basic home wiring projects. This 4 way switch diagram 2 shows the power source starting at the fixture. Sometimes the switch wiring connection diagram is printed on the inside of the 4 way switch packaging box see example below.

A two wire cable c2 is run from the light to the first switch sw1 and a 3 wire cable runs between all the switches. Power from light fixture to light switch. 3 way switched outlet wiring. Do you need a 3 way switch wiring diagram.

This circuit diagram shows wiring for a 4 way circuit with the power source at the light fixture and the switches following. This 4 way switch diagram 1 shows the power source starting at the left 3 way switch. If you want more than three locations to control the lights you will need a 4 way switch for each of those extra locations. A 4 way switch wiring diagram is the clearest and easiest way to wire that pesky 4 way switch.

Bare or green ground wires are spliced together with a pigtail or two and then connected to the metal switch box with a 10 32 machine screw and to the green screw on the switch. Three wire cable runs between the switches and the outlet.