Wall switches used to control ceiling light fixtures or other fixtures come in three types. For example a long hallway or stairway might use a pair of three way.
Electrician U Episode 11 Schematics How 3 Way And 4 Way
How does a 3 way switch work. 2 brass terminals for the 2 traveler wires and 1 common black terminal for the common wire. A 3 way switch circuit is always comprised of two 3 way switches that control lights or devices from two different locations. When the switch is on current flows along the black wire through the switch to the light and then returns to ground through the white wire to complete the circuit. These are called single pole light switches and they can turn on or off a light fixture from a single location. Is constantly hot garage light controlled by 2 switches in house and garage. Before explaining how three way light switches work its important to know how a regular light switch works.
In this article we will solve the mystery of three way switches. Using only existing 3 conductors how does this work. 3 way switch a 3 way switch has 3 terminals. 3 conductors connected garage to house where opposite 3 way switch is located. The switch simply opens off or closes on the connection between the two terminals on the switch. How a light switch works.
If you have ever wondered how this arrangement works and how each switch knows what the other switch is doing then read on. Most common is the single pole switch the type used to control a light fixture from a single locationthe next most common is the three way switch which is commonly used to control a light fixture from two different locations. I must add no it doesnt meet accepted code requirements.
Gallery of How Does A 3 Way Switch Work
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