Patent ID: 6956454
Filing Date: 2005-10-18
Classification: H01H

Abstract:
1. Magnetic subassembly for electrical breaker apparatus, comprising a magnetic circuit consisting of a yoke ( 10 ), of a fixed core ( 39 ) and of a moveable core ( 30 ) sliding along a longitudinal axis (X) inside an insulating sheath ( 20 ) between a tripped position and a rest position under the action of an induction coil ( 25 ) arranged around the sheath ( 20 ), the moveable core ( the yoke ( characterized in that the said opening ( 19 ) comprises a fluted perimeter composed of a plurality (N) of teeth ( 17 ) directed towards the axis (X), hollow zones ( 15 ) situated between each tooth ( 17 ) accommodating an end of the insulating sheath ( 20 ).