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:
Oct. 12, 2021

Filed:

Nov. 25, 2019
Applicant:

Phoenix Contact Gmbh & Co.kg, Blomberg, DE;

Inventors:

Christian Birkholz, Lippetal, DE;

Steffen Pfoertner, Springe, DE;

Jens Willmann, Buende, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 9/04 (2006.01); H01H 79/00 (2006.01); H01H 83/00 (2006.01);
U.S. Cl.
CPC ...
H02H 9/041 (2013.01); H01H 79/00 (2013.01); H01H 83/00 (2013.01);
Abstract

An overvoltage protection device includes: input terminals; output terminals; at least two overvoltage protection elements for forming staggered protection levels; and at least one longitudinal element electrically connecting an input terminal and an output terminal to conduct an operating current. In order to form a first protection level, a first overvoltage protection device is connected to two input terminals on an input side upstream of the at least one longitudinal element, and, in order to form a second protection level, a second overvoltage protection element is connected to two output terminals on an output side and downstream of the at least one longitudinal element, the at least one longitudinal element influencing a response of the at least two overvoltage protection elements in case of an overvoltage. The at least one longitudinal element is provided with a thermal overload protection device for reducing a possible current flow.


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