US Patent Issued to Phoenix Contact on July 8 for "Residual current monitoring for a DC voltage switching device" (German Inventors)

ALEXANDRIA, Va., July 9 -- United States Patent no. 12,355,230, issued on July 8, was assigned to Phoenix Contact GmbH & Co. KG (Blomberg, Germany).

"Residual current monitoring for a DC voltage switching device" was invented by Tobias Grote (Ludge, Germany) and Lutz Heuer (Blomberg, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for fault current monitoring during electrical coupling of a direct voltage load to a direct voltage source, includes detecting a magnetic field formed around positive and negative conductors; comparing the detected magnetic field to a threshold value; and disconnecting the direct voltage load if the threshold value is passed. Further, a direct voltage switching dev...