California 3 Way Wiring Diagram. Three wire cable runs between the switches and 2 wire cable runs to the light. Traveler wires are interchangeable on each switch.
In this diagram the electrical source is at the first switch and the light is located at the end of the circuit. Conventional and california diagram. The black line wire connects to the common terminal of the first 3 way switch.
This 3 way switch wiring diagram shows how to wire the switches and the light when the power is coming to the light switch.
Description power at one end 3 wire run from first s3 to light and another 3 wire run from the light to the dead end s3 at the right in the wiring schematic. 4 turn power off at circuit breaker 5 remove existing switch from wall. Except for a change in wire color on one traveler the line diagram looks the same as the previous method but the wiring schematic is totally different. The black and red wires between sw1 and sw2 are connected to the traveler terminals.
