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:
Jun. 09, 2026
Filed:
Sep. 12, 2022
Siemens Aktiengesellschaft, Munich, DE;
Marvin Tannhäuser, Hausen, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A circuit breaker for protecting an electric low-voltage circuit includes a housing with grid and load-side terminals, and a mechanical break contact unit series-connected to an electronic interruption unit. The break contact unit pairs with the load-side terminal, and the interruption unit pairs with the grid-side terminal. The current level in the low-voltage circuit, between the grid and load-side phase conductor terminals, is ascertained. Preventing current flow in the low-voltage circuit is initiated upon exceeding current and/or current/time thresholds. A measurement impedance between wires of the low-voltage circuit is connected to the connection between the break contact unit and the interruption unit. While contacts of the break contact unit are open and the interruption unit switches to high-ohmic state, the interruption unit switches to low-ohmic state for a period to check functionality of the circuit breaker.