One black (hot wire), one white (or neutral wire), and one copper (or ground wire). Test with a voltage tester to confirm. By correctly connecting two three.
Video on how to wire a three way switch
Turn off the power when.
Traveler Wires Are Interchangeable On Each Switch.
The power source wires enter one switch box in this setup, it is the first switch that is connected to power. 3 way switch wiring if you have removed both 3 way switches and didn't mark the common screw terminal and the travelers. The wire then passes onto the light.
Turn Off The Power For The Circuit At The Breaker Box.
Web 1 turn off power at the breaker box the first step is the most important: Web 776 views 1 year ago. Review home electrical safety tips and ensure you have the proper electrical.
The Common Terminal Of The Second.
The green screw attached to the metal strap of the switch is always for the ground wire.
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