Best Three Black Wires On Light Switch

Turn the power back on and turn the switch on.

Three black wires on light switch. And if you don t know which breaker controls the light you have. This means that there is a black hot wire a white neutral wire and a bare copper grounding wire. In a 3 way configuration the line wire should be connected to the common terminal of the brilliant control.

Terminate it to the top screw when the switch toggle is in the off position. It is usually a black wire. If the light turns on the second black wire you connected to the switch is the switch feed and the unconnected black wire is the feed to the other loads.

I am trying to install a dimmer switch in my bedroom. The light will either turn on or it won t. The grounding wire is connected both to the switch using a pigtail wire and to the second cable run passing onward to the next switch.

I assumed it was a single pole switch as it is a simple switch to turn on the bedroom light and there are no other controlling switches but when i pulled the old switch out of the wall i found three black wires attached to it two go directly into the switch and a third is screwed on the side. When you see a red wire in a light switch box it can mean two things. Or it could be the red wire is the wire going to the fixture and the black wires are the live wires.

Turn off the power at the breaker or fuse box. We ll cover the easier scenario first. The brilliant control can automatically detect which wire is line and which is load so they are interchangeable when installing in a single pole configuration.

If the switch box is metal it also must be pigtailed to the grounding wires. If the light doesn t turn on then it s the other way around. Connect either of the other two black wires to the other screw on the switch.