Patent ID: 7375935
Filing Date: 2008-05-20
Classification: H02H

Abstract:
1. A circuit interrupting device comprising: a housing; a phase conductive path and a neutral conductive path each disposed at least partially within said housing between a line side and a load side, said phase conductive path terminating at a first connection capable of being electrically connected to a source of electricity, a second connection capable of conducting electricity to at least one load and a third connection capable of conducting electricity to at least one user accessible load, and said neutral conductive path terminating at a first connection capable of being electrically connected to a source of electricity, a second connection capable of providing a neutral connection to said at least one load and a third connection capable of providing a neutral connection to said at least one user accessible load; a first differential transformer coupled to said phase conductive path and said neutral conductive path for detecting a phase to ground fault and generating a phase to ground fault signal in a secondary winding having a first end and a second end; a second differential transformer coupled to said phase and neutral conductive paths for detecting a neutral to ground fault and generating a neutral to ground fault signal in a secondary winding having a first end and a second end; a circuit interrupting portion disposed within said housing and configured to cause electrical discontinuity in said phase and neutral conductive paths between said line side and said load side; said circuit interrupting device further comprises a chip having a ground pin ( a feedthrough capacitor having wherein said feedthrough capacitor effectively reduces interference from radio frequency signals.