Wiring Diagram For 3 Way Switch With 2 Lights. It is true that there are several wiring configurations for wiring 3 way light switches and all of the wiring configurations will depend on where the incoming circuit power is located and once that is identified the rest of the three way wiring connections are straight forward. The hot source is connected to the common terminal of sw1.
In this diagram power enters the fixture box. Two 2 wire cables c3 and c4 run between the fixtures and a 3 wire cable c2 runs from the second fixture f2 to the second 3 way switch sw2. The power source is via the switch box sb1 and a 3 wire cable c1 runs from there to the first fixture f1.
3 way switch diagrams for multiple light fixtures.
Wiring 2 lights and 3 way switches. The electrical calc elite is designed to solve many of your common code based electrical calculations like wire sizes voltage drop conduit sizing etc. As with the other diagrams on this page more lights can be added by duplicating the wiring arrangement between the fixtures. Shown below are two fixtures between 3 way switches.