Wiring A Dimmer Light Switch Uk. First twist the wires together and then screw on the wire nut. You will find a red and black wire connected to the switch.
More advanced dimmer switches like varilight eclique and lightwave rf have an s terminal instead. Delete existing wired nuts at the connections. Ensure the copper core s of the cable is fitted in the terminals.
Remove any stray strands of cable.
Tighten the terminal screws to secure the wires. Tighten the terminal screws to secure the wires. Screw the dimmer to the box with the screws provided. No matter what electrical work you do the electricity supply has to be off.
