Patent · US Active

Protection switch

US7834290B2 · kind B2 · utility

1Cited by

5References

11Claims

0Family size

Assignee

Ellenberger & Poensgen GmbH

Inventors

Markus Birner · Zirndorf, DE
Klaus Loos · Winkelhaid, DE

Key dates

Filing date	Dec 12, 2008
Grant date	Nov 16, 2010
Priority date	—
Expiry date	Dec 12, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2071/086
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A protection switch, particularly for rapid quenching of electrical arcing, includes at least one single-pole protection switch module having a housing, a movable contact mounted on a switching arm for pivoting against a fixed contact between a closed position and an open position and a quenching device for quenching electrical arcing of the switch. The quenching device includes a quenching chamber with an inlet and an outlet for the arc. A first running rail connects the fixed contact with a first side wall of the quenching chamber and a second running rail connects a stopping surface, against which the movable contact abuts in the open position of the switching arm, to a second side wall of the quenching chamber. A separation strip extends substantially from side wall to side wall at the outlet of the quenching chamber.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.