Electric switching device comprising an arc-quenching unit

Details Electric switching device comprising an arc-quenching unit Electric switching device comprising an arc-quenching unit

2004-09-27

2008-10-21

Enad, Elvin (Department: 2832)

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Magnetic blowout

C218S034000, C218S149000, C218S156000

Reexamination Certificate

active

07439469

ABSTRACT:
An electric switching device, designed to carry a low-voltage, in particular a circuit-breaker or contactor, having at least one arc-quenching unit (16;18) is provided. Connection contacts (8) are mounted in a housing (2) that can be sealed by a cover (4) and switching chambers (10) are configured in the housing. To adapt the device to different current ranges, the housing (2) and cover (4) are equipped with guide and retaining elements (12, 26, 28, 30) for cooling plates (16) that can be inserted and for arc-quenching laminated cores (18) that can be interchanged with the plates.

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Franken, “Niederspannungs-Leistungsschalter [Low-Voltage Circuit-Breakers]”; Berlin, Heidelberg, New York 1979, pp. 59-62); [Discussed in specification].
International Search Report for PCT/EP2004/052324 (2 pages).

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