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.
2 way pull switch wiring diagram.
The power source comes from the fixture and then connects to the power terminal.
So now that you have a basic concept of wiring a 2 way switch let s look at the following 2 way switch diagrams to see which type of circuit scenario you have.
A 2 way switch wiring diagram with power feed from the switch light.
3 way switched outlet wiring.
With a pair of 3 way switches either can make or break the connection that completes the circuit to the light.
Line diagram of a one way lighting circuit using in line method fig 1.
Wiring a 3 way light switch.
One way lighting circuit using in line switching.
Below is the way i like to do it.
A two way switch uk schematic diagram of old wire colours.
In this diagram two 3 way switches control a wall receptacle outlet that may be used to control a lamp from two entrances to a room.
A one way light switch is quite easy to wire up.
3 way light switching new cable colours 3 way light switch old cable colours 3 way light switch using a two wire control.
The red wire from the feed cable is connected to the top terminal the red wire going to.
Three wire cable runs between the switches and the outlet.
The cable going to the light switch is connected as follows fig 2.
There are several ways to wire two way switching.
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.
Schematic diagram of new wire colours.
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.
You will see that there is a hot wire that is then spliced through a switch and that then goes to the hot terminal of the light.
This should give you a good basic understanding how the 2 way switch circuit works and will help you in adding or changing a 2 way switch.