Electromagnet for electric switching device

An electromagnet for an electromagnetic switching device, particularly safety switch, utilized for direct current and comprising a magnetic core and a movable armature, said core and said armature being each formed of a plurality of superposed laminations assembled into a pack and connected to each other by rivets, said core and said armature being each assembled of evenly shaped laminations, said armature and said core each having two outer legs and one central leg, one of the outer legs having a free end and being formed with an oblique surface which merges into a flat end face, the other of the other legs having a free end formed with another oblique surface and with a flat stop surface, said another oblique surface and the stop surface fitting said first mentioned oblique surface and said end face, respectively, when the armature is laid over the magnetic core, said central leg having a further oblique surface such that an air gap results between the further oblique surface of the central leg of the core and the further oblique surface of the cnetral leg of the armature when the latter and the core are in assembly.