3 Switch 3 Way Wiring Diagram. Three-way wall switches control a light fixture from two locations in a room. The colors will vary depending on whether NM cable or conduit was used.
Separate the wires so that they are as far away from each other as possible. Find this Pin and more on electricity by Ricardo Guzman. The three-way switch is a variation of the standard single-pole switch, which controls a light only from one location.
You'll notice we now have travelers.
Three-way switches allow for controlling a light fixture from two separate locations, these are usually used at the top and bottom of a flight of stairs or at two different entrances to a room.
Here are a few that may be of interest. Old and new switch should be tested to see if they are compatible match. The three-way switch is a variation of the standard single-pole switch, which controls a light only from one location.