Current-limiting contact arrangement

US6518530B2 · kind B2 · utility

Assignee

• Moeller GmbH · DE

Inventors

• Volker Heins · Meckenheim, DE
• Axel Wendenius · Hunzel, DE
• Stefan Michel · Marienfels, DE
• Klaus Ochtinger · Dienethal, DE
• Berthold Kraemer · Hunzel, DE

Key dates

• Filing date: Jul 24, 2001
• Grant date: Feb 11, 2003
• Expiry date: Jul 24, 2021

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01H9/44
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A current-limiting contact arrangement includes a conductor rail including a stationary contact and including two current loops extending at opposite sides of the conductor rail in respective planes parallel to a center plane of the contact arrangement. A contact arm including a movable contact which can be brought into and out of contact with the stationary contact is provided, the current loops extending in respective planes parallel to a center plane of the contact arrangement and along an entire opening travel of the movable contact. An arc control device including arc splitters and a cassette including a first part and a second part and an insulating material are also provided. The arc splitters are disposed in a positive-locking manner in an interior of the cassette, the contact arm and a part of the conductor rail including the stationary contact extending into the interior of the cassette, and the current loops being disposed in a positive-locking manner at outer walls of the cassette. An assembly of the cassette, the arc splitters and the conductor rail is received in a positive-locking manner by inner surfaces of a switching device enclosure.