Three Way Light Switch Diagram

This might seem intimidating but it does not have to be.

Three way light switch diagram. A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. Wiring diagram 3 way switch with light at the end in this diagram the electrical source is at the first switch and the light is located at the end of the circuit. The black line wire connects to the common terminal of the first 3 way switch. Typical 3 way switch wiring nm cable in the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box.

Take a closer look at a 3 way switch wiring diagram. 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. The black and red wires between sw1 and sw2 are connected to the traveler terminals. This is the 3 wire cable which you must have to wire a 3 way.

With these diagrams below it will take the guess work out of wiring. Three wire cable runs between the switches and 2 wire cable runs to the light. Interested in a 4 way switch wiring diagram. This 3 way light switch diagram shows connections when the power comes into the first switch on to the second switch and then on to two or more lights switched by the 3 way circuit.

3 way switch wire diagram power to light switch in this diagram the incoming hot wire attaches to the first switch s common dark colored terminal. The fixture s hot wire connects.