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. I did not include grounding conductors on the 4 way switch wiring diagrams in order to keep them simple.
2 Way Switch How To Control One Lamp From Two Or Three Places
Two way intermediate switch wiring diagram. To wire a three way lighting circuit you will need 2 two way switches and an intermediate switch. There is more than one way to do this depending of the type of cable available and on the installation requirements. Three wire cable runs between the switches and the outlet. I have a diagram for this light switch wiring method on my 3 way switch page. Otherwise continue with the am2 exam guide. 3 way light switching new cable colours 3 way light switch old cable colours.
How to connect 2 way switch wiring using three wire control. In that an intermediate switch is used in the middle of the 2 two way switches. Three way switching schematic wiring diagram. The intermediate switch includes four terminals where these terminals will change the flow of current from circuit to circuit. In a previous video i showed how a two way. This is very similar to the two way switching circuit but with and additional intermediate switch introduced into the three wire control cable that links the two end light switches.
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. 3 way switched outlet wiring. Where 0 represents the off condition and 1 represents the on condition. By using these switches controlling light can be done from 3 different places. This method is commonly used now days as it is efficient than the two wire control system. Two cubic inches are required by the national electrical code for each 14 wire.
Construction working of intermediate switch. Intermediate switch wiringwiring diagram. As a part of the am2 exam you will have to wire up a 2 way and intermediate lighting circuit with one light. Old multi point radial lighting diagram using junction boxes. This is the new method to make a 2 way switching connection as it is slightly different from the two wire control method. Two way switch can be operated from any of the switch independently means whatever be the position of other switchonoff you can control the light with other switch.
This circuit is wired the same way as the 3 way lights at this link. 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. Follow this link if you are looking for a comprehensive step by step guide on two way and intermediate lighting circuit wiring. This video also shows how an intermediate switch works. The four terminals of intermediate switch construction and its operation are shown in fig below. See tables 31416a b.
Gallery of Two Way Intermediate Switch Wiring Diagram
