3 Way Circuit Wiring Diagram. The black and red wires between sw1 and sw2 are connected to the traveler terminals. Learn to make a 3 way switch diagram by using these free and printable examples of three way switch diagram in the following images.
The two hot wires of three wire cable connect to a pair of brass colored traveler terminals on each switch. The basic 3 way switch wiring diagram. The black and red wires between sw1 and sw2 are connected to the traveler terminals.
The electrical symbol indicates where power enters the circuit.
Pick the diagram that is most like the scenario you are in and see if you can wire your switch. In the above diagram the power from the electricity source is coming through a two wire cable to the first switch. To get started take a look at the first diagram below. 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.
