Common Wire Diagram For Wiring With Switch. The cable going to the light switch is connected as follows fig 2. Black wire this is the hot or load wire.
The green wire a ground wire connects with the green screw in the switch or the electrical box. The switch wiring is all the same but the switch wire cable c leads up to a. Either 142 with ground wg for 15 amp circuits or 122wg for 20.
Requires two wire and three wire.
I have a few of the most common ways in wiring a 4 way switch to help you with your basic home wiring projects. Common live wire cw connects to common port. Black wire this is the hot or load wire. Terminal 2 is connected to power.