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:
Mar. 12, 2019

Filed:

Jul. 13, 2016
Applicant:

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

Inventor:

Rainer Durth, Horn-Bad Meinberg, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01C 7/12 (2006.01); H01H 37/76 (2006.01); H01T 1/14 (2006.01); H01H 71/08 (2006.01);
U.S. Cl.
CPC ...
H01C 7/126 (2013.01); H01H 37/76 (2013.01); H01H 71/08 (2013.01); H01T 1/14 (2013.01); H01H 2235/01 (2013.01);
Abstract

The subject matter of the invention concerns a varistor with an isolating arrester, wherein the isolating arrester can interrupt the flow of current through the varistor in the event of a fault, wherein the isolating arrester has a terminal contact that establishes an electrical contact to a first contact of the varistor, wherein the electrical contact is protected by a thermally softenable holding device, wherein the isolating arrester also has a detachment means which is biased by means of an energy accumulator and which, in the event of a fault, if the thermally softenable holding device softens, mechanically disconnects the terminal contact from the first contact of the varistor, and wherein the detachment means is embodied so as to be resistive in order to limit the current through the varistor and prevent electrical arcs.


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