Wiring A Dimmer Switch To A Light. Remove 3 4 inch of casing from the end of the house wires and the dimmer switch wires if needed. Screw the dimmer to the box with the screws provided.
For this you ll need one three way dimmer and one three way switch. Dimmer switches are usually connected to the house wiring by short lengths of wire coming out of the switch body rather than by screw terminals. Twist the ends together clockwise and cap them using a wire connector nut.
With conventional dimmer wiring using nm cable a nm cable supplies line voltage from the electrical panel to the dimmer outlet box.
With conventional dimmer wiring using nm cable a nm cable supplies line voltage from the electrical panel to the dimmer outlet box. With a three way dimmer you can control a light from 2 different locations. Most dimmers come with a plate to fit the new dimensions but. Another nm cable connects from this dimmer box to the light fixture box.