In its simplest form, an electrical switch is a humble device. For example, a single-pole, single-throw 15A snap switch consists of a pair of electrical contacts that can be opened or closed manually.

January 21, 2014 Add as a preferred source on Google Add as a preferred source on Google If you have a light switch that controls an outlet or a fan you prefer to stay on, you know how frustrating it ...

A magnetic sensor turned out to be a useful replacement for a simple limit switch that prevented overtravel in screw jacks. ActionJacs made by Nook Industries in Cleveland, Ohio, once incorporated ...