Lighted 3 Way Switch Wiring Diagram. A three-way switch is built and wired a Refer to the illustrations below for doing the rough-in wiring for each of these situations. As many of you know, wiring a three-way switch with a pilot light is a tricky business - more I've been searching the internet for a wiring diagram that clearly shows how this needs to be done, but haven't come up with anything.
It is much more complex than installing Wifi Light Switches. 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. The Electric Toolkit provides some basic electrical calculations, wiring diagrams (similar to those found on this website), and other electrical reference data.
NOTE: The Grey wire in cable 'D' is a switched live and the Blue wire in.
The electrical symbol indicates where power enters the circuit.
Note that these diagrams assume that you're following all. Follow Dominick as he shows you step by step how to get it right. The Electric Toolkit provides some basic electrical calculations, wiring diagrams (similar to those found on this website), and other electrical reference data.