Exemplary 2 Way Lighting Circuit With Intermediate Switch

All three switches are connected together by a three core and earth control cable.

2 way lighting circuit with intermediate switch. To make this circuit work we require two different types of switches. Today this method is rarely used. 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.

The diagram shows the common method of wiring an intermediate switch into a two way light. 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. This is also known as the conversion method since it is the easiest way to add a second light switch to an existing circuit.

This video shows how to wire a three way lighting circuit this means that you can have three separate switches for example one in the hall way one on the l. It should be fitted between the first and the last switches on the circuit. An intermediate switch is used if more than two switches are required to control a two way lighting circuit.

Here we have a 3 way switching lighting circuit sometimes called two way switching with intermediate. Three way switching 3 wires three wires between the two end switches probably using 3 core and earth cable. 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.

As a part of the am2 exam you will have to wire up a 2 way and intermediate lighting circuit with one light. This allows a single light to be turned on or off from any of the switches this page shows it wired in the new cable colours if your house has the old colours you want to go here. The four terminals of intermediate switch construction and its operation are shown in fig below where the 4 contact points may be known as a b c d.

Three way switching old cable colours. The two way and intermediate switch will look the same on the front. 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.