3 Way Switch Wiring Diagram Red White Black. 2 blacks wires hot lead 1 red wire relay. The wire that will be hot when the circuit is completed to your light usually black traveler.
Wiring a three way switch this is a typical wiring setup for a 3 way light switch with black white red and ground wires. If it doesnt work switch the lower wires. Now turn off the circuit breaker.
The wire that will be hot when the circuit is completed to your light usually black traveler.
Traveler wires are interchangeable. Wiring diagram 4 way switch multiple lights light switch wiring electrical circuit diagram electrical wiring diagram. A three way switch is different. In the 1st diagram below a 2 wire nm cable supplies power from the panel to the first switch box.