Patent · US Expired

Remote controlled overload protective switch

US5381121A · kind A · utility

25Cited by

12References

25Claims

0Family size

Assignee

Ellenberger & Poensgen GmbH

Inventors

Josef Peter · Altdorf, DE
Peter Meckler · Hersbruck, DE
Fritz Krasser
Gerhard Endner · Nürnberg, DE

Key dates

Filing date	Mar 31, 1993
Grant date	Jan 10, 1995
Priority date	—
Expiry date	Mar 31, 2013

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2071/467
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A circuit breaker which is remote controllable by an external remote control switch by way of an electronic control unit and an electromagnetic switch drive controlled by the electronic control unit. The switch drive switches the electric circuit by a switch lock, which is latched to it and which, during an overload, is unlatched and opened by way of the release of the bimetal of switch drive and, as a result, interrupts the electric circuit. During bimetal release, an auxiliary switch is actuated, which by way of the electronic control unit turns the remote control switch off and re-latches switch drive with the opened switch lock.

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