Patent ID: 6154115
Filing Date: 2000-11-28
Classification: H01H

Abstract:
An overcurrent release device for protection switching devices, in particular automatic line circuit breakers or motor protective switches, with electromagnetic and thermoelectric release, said overcurrent release device comprising a thermoconducting tubular supporting body onto which a coil is wound and which has a striking end and an opposite widened receiving end for bearing contact and radial support of a bimetal snap-action disk with a central bore, a core having a bore defined therein, an armature movable in said supporting body between its striking end and said core, and a slide extending through said bore in said snap-action disk and through said bore in said core in a direction towards said armature, with said slide being provided for thermoelectric disengagement by means of said snap-action disk via thickened portion and for electromagnetic disengagement by means of said armature via a slide actuator, and wherein, in the operative state, the spacing between said armature and said core corresponds at maximum to the snapping travel of said snap-action disk.