When the toggles from both. One black (hot wire), one white (or neutral wire), and one copper (or ground wire). Web 14/3 or 12/3 cable electrical switch box (optional) running down the stairs to turn off a light is a bit inconvenient.
electrical Expand on this three way switch diagram Home Improvement
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Depending On The Type Of.
The power source wires enter one switch box in this setup, it is the first switch that is connected to power. The colors will vary depending on whether nm cable or conduit was used. With nm cable, the wire colors for.
The Wire Then Passes Onto The Light.
Web key wiring components:
