How a Reed Switch Works

Transcript:

Reed Switches, Reed Relays and Reed Sensors are our most important products. These three groups have one thing in common: the Reed Switch that is the core element of all of them. Reed Switches are magnetically operated devices, which were invented by Bell Labas in the early 1940s in United States. They work after a simple principle: Two overlapping ferromagnetic iron blades are sealed into a glass tube separated by a distance of only a few microns. The tube is filled with high-purity inert gas. Under non-operating conditions, the two blades do not touch. North and south poles around the blades will be created by an externally applied magnetic field. As a result of that, the two blades are attracted to each other and the switch closes. This technique allows small-sized switching components with quick switching operations and high reliability.

Small, quick, secure – it goes without saying that these switches have to meet high requirements regarding quality. That’s why we build them ourselves.