Wiring a 3 way light switch is certainly more complicated than that of the more common single pole switch but you can figure it out if you follow our 3 way switch wiring diagram.
2 way light switch wiring diagram uk.
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.
3 way light switching new cable colours 3 way light switch old cable colours 3 way light switch using a two wire control.
Connect the blue wire with the brown slewing coming from the light to the l2 terminal together with the 3 core earth cable grey wire.
As you can see in the schematic diagram of 2 way switch circuit below the common of both the switches are short circuited.
Two way switching with the old wiring colours.
A one way light switch is quite easy to wire up.
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.
There are several ways to wire two way switching.
Pin1 of both the switches are connected with the phase or live wire and pin2 of both the switches are connected with the one end of the lamp.
To switch from two locations youll need 2 two way switches and wire them together in a particular way.
Line diagram of a one way lighting circuit using in line method fig 1.
How to wire 2 way light switch in this video we explain how two way switching works to connect a light fitting which is controlled with two light switches.
3 way light switching new cable colours 3 way light switching old cable colours before you start safety first.
With a pair of 3 way switches either can make or break the connection that completes the circuit to the light.
A two way switch uk schematic diagram of old wire colours.
Wiring a 3 way light switch.
Two way light switches are required for two way switching these can be identified by looking at the terminals on the back of the switch.
In position 2 when the switch is up or off com and l2 are connected together.
The other end of the lamp is connected with neutral line of ac power supply.
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.
The next length of the twinearth cable will run from the light to the first two way switch.
2 way switch 3 wire system new harmonised cable colours 2 way switching 3 wire system old cable colours 2 way switching two wire control 3 way light switch using a two wire control.
2 gang 2 way light switch wiring diagram uk.
Below is the way i like to do it.
Schematic diagram of new wire colours.