Wiring A Light Switch With 12 3 Wire. Simply strip the wire to the length specified and push the wire into the hole. White black and red plus a bare ground wire.
White black and red plus a bare ground wire. The source is at sw1 and 2 wire cable runs from there to the fixtures. Multiple light wiring diagram.
Three wire supply cables generally carry red and black hot wires of 110 to 120 volts each with a single white neutral wire.
Connect the source wire to the bottom terminal of the switch and the other black wire to the top terminal. How to wire a light switch learning how to wire a light switch is one of the basic skills that every homeowner should do. Switched outlet wiring diagram. As a homeowner you will likely need to replace a light switch many times and paying an electrician is not optimal when you can do it in just a few minutes.
