3 Way Illuminated Switch Wiring Diagram. In this arrangement, the source for the circuit is at the light fixture which is located in the middle of the circuit. Three-Way Switch Wiring Source in Middle.
I am currently teaching lessons on Basic electrical circuits. You MUST follow the instructions exactly. They are always installed in pairs and use special wiring connections.
Three-way switch wiring requires the use of a three-conductor cable to connect the two switches.
The three-way switch is a variation of the standard single-pole switch, which controls a light only from one location.
How to control a light from two switches. The upstairs is dark, and as she flips the switch. You MUST follow the instructions exactly.