One screw terminal is for the hot wire that feeds the switch from the power source. If you examine any single pole light switch your house youll see its two brass terminals and the ground screw.
3 Way Switch Wiring Electrical 101
Single pole light switch 2 black wires 1 red wire. I want to put two single pole switches in a wall box one to control a ceiling fan light the other to control the power on the fan not the speed. One of the black wires is hot and the other just carries power on to outlets in the room. I have a single pole switch that has 2 black wires connected to one screw on the switch and a red wire connected to the other screw on the switch. If the switch that was there is a standard light switch with two brass screws on it and one green screw you can connect the red wire to either of the brass screws. One run was redblackwhitebare the other run is. Connect the black wire to the other brass screw.
The other terminal is for a second hot wire called a switch leg that runs only between the switch and the light fixture. The live hot wire which is usually black connects to one terminal the outgoing hot wire connects to the other one and when the switch is off the circuit is broken. How to wire a dimmer with 2 black leads in a single pole application. The fan had 2 runs of wire to it. There are also 2 white wires in the box that are connected with a wire nut. However if you need to rewire a light switch or a plug socket you may occasionally come across two black wires.
Single pole switches are the most common light switches in a home. If you have a ground wire connect the ground wire to the green screw. I have a light switch with two black wires one red and a ground answered by a verified electrician. They have two screw terminals plus a ground screw. Black means hot white signifies neutral and green indicates ground. The united states has strict codes relating to home wiring including clearly defined colors on the outer casing of the wires.
Gallery of Single Pole Light Switch 2 Black Wires 1 Red Wire
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