Two very old three way switches. Below is a simple 3 way schematic that can be applied to all three way electrical light switch connections.
Swap Out Those Old Crappy 3 Way Light Switches For Good Cnet
Three way switch wiring diagram power at 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. 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. The hot source is spliced to the white wire which should be marked as. Typical 3 way switch wiring nm cable. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light. Traveler wires are interchangeable.
Wiring a 3 way light switch. The black line wire connects to the common terminal of the first 3 way switch. Two very old three way switches are depicted in the photo above. 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. Wiring diagram for a 3 way switch one of the many wiring diagrams showing different methods of wiring a three way switch circuit. This is only a wiring schematic and not the actual wiring method used for 3 way switch installations.
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. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box. 3 way switch schematic wiring diagram. Three way light switch with power feed via the light. 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.
Gallery of Three Way Switch Wiring Diagram Power At Light
