Patent · US Expired

Current-limiting switch

US5907270A · kind A · utility

1Cited by

12References

9Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

David Branston · Effeltrich, DE
Wilfried Jaehner · Wendelstein, DE
Fritz Pohl · Hemhofen, DE

Key dates

Filing date	Jun 20, 1997
Grant date	May 25, 1999
Priority date	—
Expiry date	Jun 20, 2017

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2077/025
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A current-limiting switch, with current connections and contacts, at least one of which is movable, having an associated drive, for opening the moving contact when a predefined electric current intensity is exceeded, are provided. The drive is a thermoelectric drive where a disk-shaped resistor body is present, in a closed housing made of insulating material, for high-intensity discharges, plurality of resistor bodies and associated electrode disks, acting as contacts, are connected electrically in parallel and mechanically in series in the housing made of an insulating material (1). This results in increased switching capacity with compact design.

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