Wiring A Single Pole Dimmer Switch Diagram. Remove 34 inch of casing from the end of the house wires if needed. Wiring a single pole or one-way light switch is easy it requires 3 wires.
For 3-Way Application go to Step 5B. A wiring diagram is a simplified traditional pictorial representation of an electric circuit. Single Pole One location or 3-Way Multi-location.
Two black or hot wires and the earth.
It should also help in understanding the functions of each type of switch. If you are replacing an existing 3-way switch. Just draw the cables from the distribution board DB or power source connect the black wire to the dimmer or switch and then to the bulb. Pull off pre-cut insulation from Dimmer.