Three Pole Switch

In addition the three way switch has a black terminal.

Three pole switch.

Most common is the single pole switch the type used to control a light fixture from a single location the next most common is the three way switch which is commonly used to control a light fixture from two different locations. Thus a double pole switch has three terminals. Wiring a 3 way light switch. The other two terminals are often referred to as a and b.

The three way switch is a variation of the standard single pole switch which controls a light only from one location. You don t need the other terminal on the three way switch so it s fine to cover it over with electrical tape to ensure the terminals don t get mixed up. The most common household switch a single pole has two terminals and simply turns power on or off. With a pair of 3 way switches either can make or break the connection that completes the circuit to the light.

Enerlites 3 way decorator paddle light switch single pole or three way 3 wire grounding screw commercial grade 20a 120v 277v ul listed 93200 gy gray 5 0 out of 5 stars 4 13 99 13. These control a light from two or three switch locations such as at the top and bottom of a stairwell at either end of a hallway or in a large room with multiple entrances. A three way switch has the same two brass terminals you find on a single pole switch although they are usually opposite each other instead of arranged vertically on the switch body. A double throw switch connects an input terminal to one of two output terminals.

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. For example a long hallway or stairway might use a pair of three way. Wall switches used to control ceiling light fixtures or other fixtures come in three types. Three way switches control a light fixture from two locations in a room.

A three way switch has three terminals. It s there so the electrician can connect the switch to another three way switch via a third wire. A four way has four. When the switch is in one position the common terminal is connected to the a terminal so current flows from the common terminal to the a terminal but no.

Wiring a 3 way light switch is certainly more complicated than that of the more common single pole switch but you can figure it out if you follow our 3 way switch wiring diagram.