3 Way Wiring Diagram Power At Switch. The black line wire connects to the common terminal of the first 3 way switch. Yellow for traveler terminals.
Typical 3 way switch wiring nm cable. Black live or hot wire green ground wire blue neutral or common wire red terminal wire two 3 way switches. The black line wire connects to the common terminal of the first 3 way switch.
The travelers actually pass the electricity between the two 3 way switches as well as the 4 way switches shown in the 4 way switching wiring diagrams.
Pick the diagram that is most like the scenario you are in and see if you can wire your switch. Take a closer look at a 3 way switch wiring diagram. 3 way switch wiring diagram. The black line wire connects to the common terminal of the first 3 way switch.
