The present invention relates to an electromagnet of the reluctant type, which can be used in particular for a remote control switch, in office machines, machine tools, automatic control devices, automatic cash dispensers or the like. BR/ The electromagnet (10) comprises mainly an activation coil (12) mounted on a carcass (11) provided with an axial guide tube (15) in which is disposed a plunger (14) arranged to slide in this tube under the effect of the electromagnetic forces induced by said coil when it is traversed by an electric current and an armature (13) arranged to at least partially surround said coil and to channel the magnetic field generated by it. It is characterized in that said carcass (11) of the coil (12) consists of at least two parallel support plates (16, 17) interconnected by said guide tube (15), and in that said armature (13) comprises at least one housing consisting of two substantially symmetrical elements (13a, 13b) and arranged to fit on said carcass (11) in a plane M parallel to the magnetic field lines generated by the coil at this location, so as not to disturb the magnetic flux. / P
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