Light Switch Loopback Wiring Diagram. There will only be three wires at the light live neutral and earth. Diagrams coupled with some instructions to help you on your way to wiring a single switch.
This diagram illustrates wiring for one switch to control 2 or more lights. The principle is exactly the same as when looping at the ceiling rose or using a junction box. Hold the red and black terminals of your circuit tester to a red and a black wire that appear in the same cable.
The red wire from the feed cable is connected to the top terminal the red wire going to the light is connected to the bottom terminal the black wires from both cables are connected together in.
A switch loop single pole switches light dimmer and a few choices for wiring a outlet switch combo device. The neutrals are connected together using a terminal connector. Our instructions on how to wire a light switch for a standard light switch a three way light switch and a four. A one way light switch is quite easy to wire up.