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:
Feb. 22, 2022
Filed:
Apr. 02, 2019
Applicant:
Tdk Electronics Ag, Munich, DE;
Inventors:
Assignee:
TDK ELECTRONICS AG, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 85/02 (2006.01); H01C 7/12 (2006.01); H01H 85/00 (2006.01); H01H 85/12 (2006.01); H01H 85/30 (2006.01); H01H 85/36 (2006.01); H02H 3/02 (2006.01); H02H 3/04 (2006.01); H02H 3/05 (2006.01); H02H 3/22 (2006.01); H01H 85/06 (2006.01); H01H 85/175 (2006.01); H01H 85/20 (2006.01);
U.S. Cl.
CPC ...
H01H 85/0241 (2013.01); H01C 7/12 (2013.01); H01H 85/0052 (2013.01); H01H 85/12 (2013.01); H01H 85/306 (2013.01); H01H 85/36 (2013.01); H02H 3/025 (2013.01); H02H 3/04 (2013.01); H02H 3/05 (2013.01); H02H 3/22 (2013.01); H01H 85/06 (2013.01); H01H 85/175 (2013.01); H01H 85/2015 (2013.01);
Abstract
A three phase surge protection device is disclosed. In an embodiment a device include a stack comprising a first varistor, a second varistor and a third varistor, wherein the varistors are electrically connected to form a circuit and a first thermal disconnect configured to interrupt the circuit when a temperature of the first thermal disconnect exceeds a predefined temperature.