Wiring a 3 way light switch. Regardless of what 3 way switch wiring diagram youre following youll need to use a 3 wire cable to connect the two 3 way light switches.
3 Way Or Three Way Switch Maintenance And Troubleshooting
Three way switch wiring diagram power at light. In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. So what you should see if you have correct 3 wire electrical cable romex is a black power white neutral and now a 3rd red wire. In this light switch wiring diagram the power feed joins the circuit via the light fixture where a two wire cable c2 runs from the light to the first 3 way switch sw1 and a 3 wire cable c3 joins the two switches. Below is a simple 3 way schematic that can be applied to all three way electrical light switch connections. The black line wire connects to the common terminal of the first 3 way switch. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together.
Three way light switch with power feed via the light. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light. This electrical wiring diagram shows power into light switch box 1 wire to light from switch box 1 and from switch box 1 to three way light switch box 2. 3 way switch schematic wiring diagram. Typical 3 way switch wiring nm cable. Wiring a 3 way light switch is certainly more complicated than that of the more common single pole switch but you can figure it out if you follow our 3 way switch wiring diagram.
Two very old three way switches are depicted in the photo above. Traveler wires are interchangeable. This is only a wiring schematic and not the actual wiring method used for 3 way switch installations. The hot source is spliced to the white wire which should be marked as. Wiring diagram for a 3 way switch one of the many wiring diagrams showing different methods of wiring a three way switch circuit. Two very old three way switches.
Gallery of Three Way Switch Wiring Diagram Power At Light
