Magnetic release, in particular for a circuit breaker, and a circuit breaker having such a magnetic release

摘要

A magnetic release is described for an electrical switching device, such as a circuit breaker, which has a coil, a core located inside the coil, and an armature in the form of a plunger-type armature which can move inside the coil or in the form of a hinged armature. The coil is stamped and bent from sheet metal composed of an electrically highly conductive material. It has first webs that are located at a distance from one another in a first plane and second webs that are likewise located at the same distance from one another in a second plane. The webs each run parallel to one another and are offset with respect to one another in such a manner that the webs are disposed with connecting webs in a helical shape around a center axis, and on the inside form a through-opening for accommodating at least one core.