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:
Mar. 31, 2020
Filed:
Aug. 16, 2018
Applicant:
Phoenix Contact Gmbh & CO KG, Blomberg, DE;
Inventors:
Rainer Durth, Horn-Bad Meinberg, DE;
Jan-Erik Schmutz, Detmold, DE;
Maik Dittert, Bad Salzuflen, DE;
Assignee:
PHOENIX CONTACT GMBH & CO KG, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01C 7/12 (2006.01); H01C 1/02 (2006.01); H01C 1/084 (2006.01); H01C 1/14 (2006.01); H01C 13/02 (2006.01);
U.S. Cl.
CPC ...
H01C 7/12 (2013.01); H01C 1/02 (2013.01); H01C 1/084 (2013.01); H01C 1/14 (2013.01); H01C 7/123 (2013.01); H01C 13/02 (2013.01);
Abstract
The invention relates to an overvoltage protection device with varistors, wherein a first varistor and a second varistor are connected in series, wherein the first varistor has a thermal disconnector, wherein the first varistor has a lower operating voltage than the second varistor, and wherein the first varistor has a lower energy absorption capacity than the second varistor, with the first varistor heating up more in the event of an overload and thereby causing the thermal disconnector to disconnect.