A two way switch uk schematic diagram of old wire colours.
2 way switch wiring diagram power at switch.
Where 0 represents the off condition and 1 represents the on condition.
Below is the way i like to do it.
4 way light switch with power feed via the light.
This method is commonly used now days as it is efficient than the two wire control system.
The switches at each end are 1 pole 2 way switches.
2 way light switch with power feed via switch two lights the power source enters the switch box sb1 where the neutral is spliced through to the light fixture f1 where it is spliced to the light lt1 and via cable c3 to the second light lt2.
A wiring diagram is a simplified traditional photographic depiction of an electric circuit.
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.
How to connect 2 way switch wiring using three wire control.
Variety of 2 way switch wiring diagram.
Alternative method of three way switching.
After you have pulled your switch out from the wall the wires in the box and connecting to the switch should look like one of the following.
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.
Two lights between 3 way switches power via a light how to wire a 4 way light switch with power feed via the light switch.
Basic 2 way circuit power coming in at switch.
The power source comes from the fixture and then connects to the power terminal.
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.
Any number of intermediate crossover switches may be added to give three or more switching positions.
This is an alternative deprecated form see above for the reasons of the multi way switch wiring.
Schematic diagram of new wire colours.
Before proceeding an important component called a two way light switch is the main element of the 2 way switching irrespective of the type of wiring used.
It is a standard single pole switch with three terminals.
This is the new method to make a 2 way switching connection as it is slightly different from the two wire control method.
A selection of two way switch lighting circuit diagrams for single and multiple lights with easy to follow circuit guides.
After making sure the power is off you strip the black wire in the two conductor cable which also has a ground wire and make a pigtail with two 6 inch lengths of black wire salvaged from a spare piece of cable of the same wire gauge.
As the diagram at electrical 101 shows the line cable is all you need to supply power to a pair of switches in a single electrical box.
A 2 way switch wiring diagram with power feed from the switch light.
It reveals the parts of the circuit as streamlined shapes as well as the power and also signal links between the devices.