Three Way Light Switch Diagram. Red and blue wires link traveler terminals of both switches. The source in this circuit is at the first switch and the light fixture is.
At each switch in the above 3 way switch wiring diagram the black wire gets connected to the common copper or black screw. Red and blue wires link traveler terminals of both switches. 3 way switch wiring with.
To get started take a look at the first diagram below.
At each switch in the above 3 way switch wiring diagram the black wire gets connected to the common copper or black screw. The diagram below will give you a good understanding of what this wiring consists of. 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. Three way switch wiring with light middle.
