The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 04, 2025
Filed:
Dec. 21, 2021
Siemens Aktiengesellschaft, Munich, DE;
Siemens Akteingesellschaft, Munich, DE;
Abstract
A circuit breaker for a low-voltage electric circuit includes a mechanical break contact unit which is connected in series with an electronic interrupting unit. The mechanical break contact unit is switched by breaking contacts to prevent current from flowing or by closing the contacts to allow current to flow in the low-voltage circuit. The electronic interrupting unit switches semiconductor-based switching elements into a high-impedance state to prevent current from flowing or into a low-impedance state to allow current to flow in the low-voltage circuit. The amplitude of the current in the low-voltage circuit is ascertained as instantaneous current values. If the instantaneous current value is exceeded relative to at least one current threshold value, prevention of current flowing in the low-voltage circuit is initiated. The at least one current threshold value is adapted in dependence on the amplitude of the current in the low-voltage circuit.