3 Way Diagram Switch. The black and red wires between sw1 and sw2 are connected to the traveler terminals. 3 way switch wire diagram power to light switch with fixture between switches the incoming hot wire is connected to the right switch s common terminal.
In the ceiling light fixture electrical box one black wire from a 3 way switch gets connected to the black load wire on the light fixture. Three wire cable runs between the switches and 2 wire cable runs to the light. By correctly connecting two of these switches together toggling either switch changes the state of the load from off to on or vice versa.
This wire diagram shows the wiring for source power into the first three way switch then 3 wire cable to the next 3 way light switch and then on to the light or light fixtures.
3 way switch wiring diagram. The black and red wires between sw1 and sw2 are connected to the traveler terminals. The basic 3 way switch wiring diagram. This 3 way light switch diagram shows connections when the power comes into the first switch on to the second switch and then on to two or more lights switched by the 3 way circuit.