Patent · US Expired

Switching arrangement for low-voltage circuit breakers

US6969816B2 · kind B2 · utility

0Cited by

6References

7Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Michael Bach · Kildeer, US
Detlev Schmidt · Berlin, DE
Michael Sebekow · Berlin, DE
Günter Seidler · Berlin, DE
Ingo Thiede · Berlin, DE
Sezai Turkmen · Berlin, DE

Key dates

Filing date	Mar 12, 2002
Grant date	Nov 29, 2005
Priority date	—
Expiry date	Mar 12, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH01H1/226
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A switching arrangement for low-voltage circuit breakers with a high nominal current includes movable switching contacts arranged essentially on a moveable contact carrier. It further includes fixed switching contacts and a device for cooling, de-ionizing and extinguishing an electric switching arc. The fixed contact is provided with a pre-contact function over the entire contact width thereof. Moveable contact levers are arranged according to a set pattern in a distributed manner over the entire width of the contact carriers and are provided with or without a pre-contact. A contact lever with a pre-contact and a contact lever without a pre-contact can be provided successively. Similarly, two or more contact levers with a pre-contact and two or more contact levers without a pre-contact can be successively and alternatingly provided in packet-form.

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