Abstract: A bistable switching arrangement has a magnetic system comprised of a yoke/core, an armature and at least one permanent magnet, as well as a magnetic coil. The armature is swingably held at the core by a spring and mechanically linked to a movable contact, with an air gap being formed in one switching state between the armature and a pole face of the yoke/core combination. In order to attain that only slight forces act upon the released armature, the permanent magnet is positioned in a region of the yoke to form one part of the cross sectional area, with the other part being formed by a non-magnetic member.

Abstract: Relay drive for a polarized relay having an armature that can be moved in at least one working air gap provided between two pole faces of a split yoke and at least one permanent magnet, as well as a coil permeated with parts of the yoke, or a core directly connected therewith, wherein at least one pole face cooperating with the armature or located thereon is formed from one pole face of the permanent magnet and another pole face cooperating with the armature or disposed thereon is formed either by a pole face of another permanent magnet or of a soft-iron part, said soft-iron part being interchangeable with a permanent magnet of the same size.