4 Way Switch Wiring Diagram Uk. A dimmer switch can be used on any of these circuits but for two switches and above only one of them can be a dimmer. When l1 is off l2 would be on.
When using a ceiling rose on a circuit that utilises the in line switching method again the wiring is quite easy the difficult part is working at height and above your head. There are two wiring options for this. Fig 2 below shows how we achieve this configuration.
It shows the components of the circuit as simplified shapes and the capacity and signal contacts between the devices.
Fig 2 below shows how we achieve this configuration. For simplicity the earth wire is not shown in the above diagram. If you are based in the usa. Here are a number of highest rated lamp switch wiring diagram pictures upon internet.