A single pole switch has one input and one output, it has two states; “on” or “off”. They can be wired either normally open or normally closed and can be either latching or momentary. There are two types of single pole switch, these are “single-pole, single throw” and “single pole double throw”.

What is the difference between a single and double pole switch?

The pole of a switch refers to the amount of separate circuits that switch can control. Single pole switches can control just one circuit and a double pole switch can control two circuits.

What is a single pole switch used for?

A single pole switch is used to control the light in a small closet or bathroom. It's called a single pole switch because there are two wires connected or separated by the switch mechanism. There's also a ground wire to protect against electrical faults.