Black wire power or hot wire.
2 way lighting circuit with intermediate switch.
To switch from two locations youll need 2 two way switches and wire them together in a particular way.
In an intermediate switch there are four terminals by which it changes the flowing of electric current from one circuit to another see fig 1 2 and also known as three way switch it has the ability to on and off the electric supply by two ways.
The switch can be flipped only two ways up or down but the electricity can flow through the switch in 4 different ways depending on how it s connected into the circuit.
As a part of the am2 exam you will have to wire up a 2 way and intermediate lighting circuit with one light.
Two way switch can be operated from any of the switch independently means whatever be the position of other switch on off you can control the light with other switch.
There is more than one way to do this depending of the type of cable available and on the installation requirements.
When wiring a 2 way switch circuit all you re really doing is controlling the power flow switching off on to the load a light lamp outlet ceiling fan etc now a typical circuit will contain a 3 wire cable known as romex.
The most basic circuit with only two wires at the switch.
Years ago it was very common to wire lighting circuits in singles cable and by this minimising the use of copper.
The four terminals of intermediate switch construction and its operation are shown in fig below.
The two way and intermediate switch will look the same on the front.
2 gang 2 way light switch wiring diagram uk.
50ecb 1 gang 2 way light switch wiring diagram digital resources 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.
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.
Notice that the wire connected to the com terminals is looped straight through the intermediate switch using a cable connector.
Construction working of intermediate switch.
The cable consist of a black wire a white wire and a bare copper wire.
A 2 way switching connection means you can control an electrical equipment like bulb by two switches placed at different places generally used in the staircase.
The circuit consists of a two way switch at each end top and bottom switches in fig 2 and an intermediate switch in the middle.
All three switches are connected together by a three core and earth control cable.