How To Wire A 4 Way Light Switch Diagram

This circuit is wired the same way as the 3 way lights at this link.

How to wire a 4 way light switch diagram. This 4 way switch diagram 1 shows the power source starting at the left 3 way switch. 4 way light switch with power feed via the light. For a 4 way light circuit to work you need two 3 way switches and at least one 4 way switch. Some 4 way switches may have the in and out pairs opposite each other rather than top and bottom.

Three wire cable runs between the switches and the outlet. The white wire of the cable going to the switch is attached to the black line in the fixture box using a wirenut. Power from light fixture to light switch. This circuit diagram shows wiring for a 4 way circuit with the power source at the light fixture and the switches following.

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. Do you need a 3 way switch wiring diagram. 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. In this diagram two 3 way switches control a wall receptacle outlet that may be used to control a lamp from two entrances to a room.

Sometimes the switch wiring connection diagram is printed on the inside of the 4 way switch packaging box see example below. This 4 way switch diagram 2 shows the power source starting at the fixture. If additional 4 way switches are needed they will also go between the 3 way switches. Place all the 4 way switches 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. The two wiring diagrams above are of a 3 way switch setup and the same basic setup with a 4 way light switch added. 3 way switched outlet wiring.

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. If you want more than three locations to control the lights you will need a 4 way switch for each of those extra locations.