These designations spell out the number of contacts and how they behave during operation. For instance, a basic on/off light switch is an example of a single-pole (i.e., one-circuit) single-throw (i.e ...

Basic snap-action switches have been around in one form or another since the 1930s, when the first precision snap-action switch was developed for temperature control in a chicken brooder. The ...

Switches come in many styles—rocker, toggle, thumbwheel, key, pushbutton to name a few. Yet with the thousands of choices designers have for switches, many times the selection of a switch, its ...