What is Three-way switch?
A three-way switch is a type of electrical switch that enables the control of a single light or fixture from two different locations. This is particularly useful in hallways, staircases, or large rooms where convenience and accessibility are important. Unlike a standard single-pole switch, a three-way switch has three terminals and does not have a definite on/off position.
In residential and commercial electrical systems, three-way switches are often paired and wired together with travelers—wires that carry current between the switches. When wired correctly, flipping either switch can turn the light on or off regardless of the position of the other switch. For example, a homeowner can turn on a stairway light at the bottom and turn it off at the top.
Electricians often use three-way switches to enhance safety and usability, especially in spaces with multiple access points. Proper installation requires understanding the wiring configuration and adhering to electrical codes to avoid hazards and ensure reliability.
