2 Way Switching
Jump to navigation
Jump to search
2 way switching means having 2 or more switches in different locations to control one circuit. They are wired so that operation of either switch will control the light(s).
To achieve 2 way control the usual single switch is replaced with either of the following circuits:
2 Way Switching:
o------------------------------------o / ------O O------ / o------------------------------------o a switch cable run switch b
3 Way Switching:
o---------------o o----------------o / \ / ------O X O------ / \ / o---------------o o----------------o a switch cable crossover sw cable switch b
- a & b are the 2 connections that are used in place of the usual single switch
- the switches at each end are 1 pole 2 way switches
- Any number of crossover switches may be added to give 3 or more way switching.
- the cable runs are from one switch location to another
- 3 core & earth cable is usually used for 2 way switch circuits.