Patent · US Active

Circuit breaker device and method

US12354825B2 · kind B2 · utility

0Cited by

0References

18Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Marvin Tannhäuser · Eschborn, DE
Dominic Malane · Eichstätt, DE
Fabian Döbler · Theilenhofen, DE

Key dates

Filing date	Dec 21, 2021
Grant date	Jul 8, 2025
Priority date	—
Expiry date	Dec 21, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH01H71/125
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A circuit breaker device for a low-voltage circuit has a mechanical isolating contact unit connected in series with an electronic disconnection unit. The mechanical isolating contact unit is switched by opening contacts to prevent current flow or closing the contacts for current flow in the low-voltage circuit. The electronic disconnection circuit is switched by semiconductor-based switching elements into a high-resistance state of the switching elements or into a low-resistance state of the switching elements for current flow in the low-voltage circuit. When the amount of an instantaneous current value of the low-voltage circuit exceeds at least one current threshold value, prevention of the current flow of the low-voltage circuit is initiated. The at least one current threshold value is adjusted according to the magnitude of the voltage of the circuit breaker device.

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