Patent ID: 7679020
Filing Date: 2010-03-16
Classification: H01H

Abstract:
1. An electrical service switching device having a housing which has two housing halves and connecting means for electrical connection to busbars and/or power lines, having at least one electrical switching contact on which an arc is struck in an initial arcing chamber on disconnection of the electrical contact, with an arc quenching unit being provided adjacent to this, in order to quench the arc, wherein an AC blowout device which comprises two iron plates adjacent to the initial chamber area in the lateral direction and assists the guidance of the arc into the arc quenching device by magnetic interaction during AC operation, is provided, and wherein the housing wall has an opening in the area of the iron plates, through which a permanent magnet can be inserted in order to create an AC/DC blowout device, which assists arc guidance in both AC and DC operation, when the housing is assembled.