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.

Date of Patent:
Jul. 21, 2026

Filed:

Sep. 12, 2022
Applicant:

Siemens Aktiengesellschaft, Munich, DE;

Inventors:

Marvin Tannhäuser, Hausen, DE;

Manfred Heindl, Alteglofsheim, DE;

Jörg Hussmann, Neumarkt, DE;

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 89/08 (2006.01); H01H 9/54 (2006.01); H01H 71/04 (2006.01); H01H 71/62 (2006.01);
U.S. Cl.
CPC ...
H01H 9/547 (2013.01); H01H 71/04 (2013.01); H01H 71/62 (2013.01);
Abstract

A circuit breaker for protecting an electric low-voltage circuit has a housing with a grid-side neutral conductor connection, a grid-side phase conductor connection, and a load-side phase conductor connection for the low-voltage circuit. A mechanical isolating contact unit is connected to an electronic interruption unit in series for a phase conductor path and is paired with the load-side phase conductor connection. The electronic interruption unit is paired with the grid-side phase conductor. A current sensor unit ascertains the level of the current of the phase conductor path. A power supply unit is connected or can be connected to the grid-side neutral and phase conductor connections. A control unit is connected to the power supply unit, the current sensor unit, the mechanical isolating contact unit, and the electronic interruption unit. A process for interrupting the current flow in the phase conductor is initiated when current thresholds or current/time thresholds are exceeded.


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