H - Electricity – 01 – H
Patent
H - Electricity
01
H
H01H 33/18 (2006.01) H01H 33/53 (2006.01) H01H 73/18 (2006.01)
Patent
CA 2632501
The invention relates to an electrical service switching device, in particular a circuit breaker, motor circuit breaker or the like, 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. An AC blowout device which comprises two iron plates adjacent to the initial chamber area in the lateral direction and guides the arc into the arc quenching device by magnetic interaction during AC operation, is provided. 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 guides the arc into the arc quenching device in both AC and DC operation, when the housing is assembled.
Dickgiesser Andre
Schulz Bernhard
Abb Ag
Marks & Clerk
LandOfFree
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