This allows a single light to be turned on or off from any of the switches. A wiring and circuit diagram is shown below.

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Intermediate switch diagram australia. 4 way light switch using intermediate switching australiaalways earth light circuits was omitted for clarity sakes switchwires from switches were twin did nt have sdi cable. The single circuit may have one or more lights in it. How to wire 4 way light switch and intermediate switch in this video we explain how four way intermediate switching works to connect a light fitting which is controlled with three or more light. Here we have a 3 way switching lighting circuit sometimes called two way switching with intermediate. 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 switchit has the ability to on and off the electric supply by two ways. Construction working of intermediate switch.
This page shows it wired in the old cable colours if your house has the new colours you want to go here. An intermediate lighting circuit is used when one circuit is to be turned on or off by three or more switches. The four terminals of intermediate switch construction and its operation are shown in fig below. And so onto the intermediate switch. Two way switch diagram. Wiring diagram for 678m16 intermediate switch rear view of switches 2 way switch intermediate switch 2 way switch any number of intermediate switches can be wired between the 2 way switches p n load l3 l2 l1 l4 l2 l3 l2 l1 678m16 wiring diagrampdf 7 september 2007 379301 rev0 cn13722.
This is a very versatile switch and can be used for most lighting situations but in reality it is more expensive so you would normally only use it when needed. That is when you have three switches controlling one light then the middle one needs to be an. This type of circuit uses two of the two way switches and one or more of the intermediate switches.