Three 3 Way Switch Wiring. If one of the black (hot). A three-way switch is built and wired a little differently than a conventional single-pole light switch.
Disconnect all three wires (or four, if the outlet is grounded) from both switches. Typically used for hallways and staircases, three-way switches are used in instances where two separate switches control one. Controlling a light with three or more switches.
Wiring a three-way switch will take a few hours, depending on your wall framing.
Learning how to wire a three-way switch can be complicated and require some patience, but this guide will walk you through running an electrical cable and connecting the two switches with step-by-step instructions.
Follow Dominick as he shows you step by step how to get it right. We must mark both ends with black electrician tape to warn that this is intermittently hot. The feature is handy, but it can be tricky to get the wiring just right.