Fun Red Wire 3 Way Switch

This 3 way light switch wiring diagram shows how to do the light switch wiring and the light when the power is coming to the light fixture.

Red wire 3 way switch. Or it could be the red wire is the wire going to the fixture and the black wires are the live wires. When you see a red wire in a light switch box it can mean two things. I doubt that you can install an outlet with these wires because the 3 wires white black and red could be hot or neutral depending on the on off of these two 3 way switches.

When wiring a 3 way switch circuit we will be using a 3 wire cable known as romex coming from the source such as the breaker box. The black hot wire connects to the far right switch s common terminal. Traveler wire terminals these are located on each side of the switch towards the top of the switch.

Then a 4 wire cable going between the two 3 way switches and then a 3 wire cable going from the switches to the load. With conduit the wire colors for travelers could be any color. The colors will vary depending on whether nm cable or conduit was used.

It could be there is or once was a three way switch in play. This is the 3 wire cable which you must have to wire a 3 way light switch. If you follow this how to you will be leaps and bound.

Three way switch wire connections. The 3 wire cable consist of a black wire a white wire and a bare copper wire while the 4 wire cable has an added red wire which is hot as well. And if you don t know which breaker controls the light you.

Red and blue wires link traveler terminals of both switches. How to wire a 3 way switch. We ll cover the easier scenario first.