Stunning Three Way Electrical Switch
Both switches are toggled down to create an open path light is off.
Three way electrical switch. For example a long hallway or stairway might use a pair of three way switches at each end so that lights can be turned on when approaching one end of the hall or stairway then shut off from the other end. Another type is the four way switch which is used in conjunction with two three way switches to control lighting from more than two locations. The three way switch is a variation of the standard single pole switch which controls a light only from one location.
Electrically a typical 3 way switch is a single pole double throw spdt switch. The national electrical code requires that a neutral conductor white wire be installed at most light switch locations however article 404 2 c only requires the neutral at one 3 way switch location. In some countries the three way switch is called a two way switch.
Usually the common wire is wrapped around the traveler wires for identification in the 3 way light switch electrical boxes. Right switch is. 3 way switch is a multiway switching or interconnection of two or more electrical switches to control an electrical load from more than one location.
Three way switches are commonly used to control a light fixture from two different locations. Left switch is toggled up to create a continuous path light is on.