ABSTRACT

There are many different types of switch, used for different purposes. Here we describe a few of the most useful types.

A toggle switch is a basic switch, operated by a toggle lever that can be pushed up or down. By convention, the down position is the ‘on’, or ‘closed’ , or ‘made’ position. The toggle switch in the photo has its toggle lever up. Behind the lever is a threaded dolly with a large nut. This is for mounting the switch in a circular hole cut in a panel.