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:
Aug. 11, 2026
Filed:
Nov. 12, 2021
Siemens Aktiengesellschaft, Munich, DE;
Fabian Döbler, Theilenhofen, DE;
Christopher Fromme, Fürth, DE;
Dominic Malane, Eichstätt, DE;
Marvin Tannhäuser, Hausen, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A circuit breaker device for protection of an electrical low-voltage circuit determines the voltage level of the low-voltage circuit in such a way that current voltage values are provided and current threshold values are provided. The current voltage values are compared with the current threshold values in terms of phase angle in such a way that when the current threshold values are exceeded or undershot or a differential voltage value is formed from the current threshold value and the current voltage value, the differential voltage value is compared with a differential voltage threshold value and when it is exceeded or undershot, an interruption of the low-voltage circuit is initiated in order to avoid a short-circuit current. A method for protecting an electrical low-voltage circuit is also provided.