It is essentially the same circuit diagram as the one on the top of this page but with the utilisation of modern cable arrangements.
2 way switch wiring diagram uk.
Schematic diagram of new wire colours.
Here we have a two way switching system that utilises two single gang two way switches and a three wire control shown in the new harmonised cable colours.
2 way switching two wire control.
In position 2 when the switch is up or off com and l2 are connected together.
This diagram represents a two way switching arrangement.
For simplicity the earth wire is not shown in the above diagram.
The old wiring colours that are present in the majority of homes in the uk have been used for this diagram.
The next length of the twinearth cable will run from the light to the first two way switch.
2 way light switch 3 wire system new harmonised cable colours 2 way switch 3 wire system old cable colours 2 way switch two wire control three way switching.
A two way switch uk schematic diagram of old wire colours.
Your lighting circuit must have an earth cable terminating in the switch back box and also at the switch plate if it is metal.
There are other ways of wiring a two way lighting circuit but this is by far the most common and easiest method.
This circuit diagram describes the wiring a two way switch in such an arrangement so that the flat twin earth and 3 core earth cables are not broken or interrupted anywhere between the components of the circuit.
3 way light switching new cable colours 3 way light switch old cable colours 3 way light switch using a two wire control.
2 way switch wiring diagram two way switch two way switching.