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. Learn how to install a double switch or combination two switches.

Single Pole Toggle Switch Wiring Diagram V Switch Wiring
3 way double switch wiring. Two three way switches control one light with the electric power coming through the first switch flowing to the second switch and then to the light fixture. Step by step. 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. Prepare two cables each with three wires inside. The black and red wires between sw1 and sw2 are connected to the traveler terminals. Its likely youll also need to replace the.
A 3 wire nm connects the traveler terminals of the first and second 3 way switch together. From each cable connect the three wires. Turn off the correct circuit at your electrical panel. The live wire the ground wire and the neutral. The black line wire connects to the common terminal of the first 3 way switch. 3 way smart switch neutral wire required treatlife wifi light switch 3 way switch works with alexa google assistant remote control etl schedule 1 pack 46 out of 5 stars 859 1999 19.
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. Either way complete these five steps for 3 way light switch wiring. 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. Screw the two live wires from the two cables originating from the circuit breaker panel onto the. The ground wire goes through both switch boxes and the ceiling light box and it is connected at all junctions except the light with a pigtail short piece of wire and wire connector. How to wire a double pole three way switch.
Episode 6 how to wire for and install 3 way switches vs california illegal 3 ways duration. Three wire cable runs between the switches and 2 wire cable runs to the light. Its likely youll also need to replace the. Add an electrical box for the second 3 way switch in the basement.