Wire Needed For 3 Way Switch. On the power coming in from the panel, you would connect that black wire to the one black screw. Follow Dominick as he shows you step by step how to get it right.
See how in this diagram how there is one contact by itself and one in the middle? those are commons which means you use them in every position. there is no wrong way to do it maybe they. The best example of this would be at either end of a long hallway, or at the top and One of the three terminals is "identified" (by using a different color) and is usually the bottom screw on the side with two screws. How to control a light from two switches.
On the power coming in from the panel, you would connect that black wire to the one black screw.
You know the drill- one turns on the light, the other one will turn off but then the first one wont turn back on unless the other one is switched, etc.
For example, this allows lighting in a hallway, stairwell, or other large rooms to be controlled from multiple locations. The top countries of suppliers are Ukraine, China, and. Three-way switches allow you to control lights or receptacles from two points.
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