Nice Light Switch Two Black Wires One Red

Join the white wires and cap them in the same way but omit the jumper wire.

Light switch two black wires one red. And if you don t know which breaker controls the light you have. However if you need to rewire a light switch or a plug socket you may occasionally come across two black wires. You will have to get a 4 way switch for that position not a 3 way switch.

Never work on a light switch with the power on. As you can see your answer is no the black wire should not be connected to the red wires. The united states has strict codes relating to home wiring including clearly defined colors on the outer casing of the wires.

They should both be of the same wire gauge. When you see a red wire in a light switch box it can mean two things. This is an older house circa 1967 and the wiring appears to be all over the place.

There appear to be two white assume neutral wires screwed together with a wire nut and a ground wire tucked away inside the junction box. Here is another diagram showing the power feeding into the light. The other black and the red are interchangeable on the two screws that are the same color.

Red and black form the same cable will connect ot he brass screws then the red and black from the other cable will connect ot he black screws. But i have seen many 3 way switches wired wrong. This one shows the power coming to one of the two switches.

It has to go to the screw that is a different color than the other two screws. Here is a three way switch wiring diagram. 4 way switches have 4 screws 2 will be black and 2 will be brass.