This is an alternative deprecated form see above for the reasons of the multi way switch wiring. Wiring two way light switch diagram uk.
How A 2 Way Switch Wiring Works Two Wire And Three Wire
2 way wiring diagram uk. Schematic diagram of new wire colours. How to wire a 2 way lighting circuit in this video i show how to wire a light that can be turned on and off with two different switches. This circuit diagram describes the wiring a two way switch in such an arrangement so that the flat twinearth and 3 coreearth 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. In position 2 when the switch is up or off com and l2 are connected together. The switches at each end are 1 pole 2 way switches.
For simplicity the earth wire is not shown in the above. The old wiring colours that are present in the majority of homes in the uk have been used for this diagram. The switches at each end are 1 pole 2 way switches. The way i show allows you to fairly easily add a second two way switch to an existing light switch by simply wiring them together in a certain way. Old multi point radial lighting diagram using junction boxes. 2 gang 2 way light switch wiring diagram uk.
Alternative method of three way switching. There are other ways of wiring a two way lighting circuit but this is by far the most common and easiest method. Below is the way i like to do it. 2 way switching two wire control ive included this method of 2 way switching for reference because you may come across it in old homes but i dont recommend you use it. Any number of intermediate crossover switches may be added to give three or more switching positions. 3 gang 2 way light switch wiring diagram uk.
To switch from two locations youll need 2 two way switches and wire them together in a particular way. Way in switch gang in switch and sp dp pole difference in electrical switches. 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. In position 1 when the switch is down or on com and l1 are connected together just like the one way switchin position 2 when the switch is up or off com and l2 are connected together. The junction box should be wired as shown below. A two way switchuk schematic diagram of old wire colours.
Two way lighting circuit using three core earth cable. It is essentially the same circuit diagram as the one on the top of this page but with the utilisation of modern cable arrangements. Explanation of above picture. I use simple electrical diagrams to show how to do the. The next length of the twinearth cable will run from the light to the first two way switch. Line diagram of a two way lighting circuit using junction boxes fig 1.
This diagram represents a two way switching arrangement. 2 way switch wiring diagram two way switch two way switching.