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Arcing fault detection module

  • US 6,002,561 A
  • Filed: 01/14/1998
  • Issued: 12/14/1999
  • Est. Priority Date: 01/14/1998
  • Status: Expired due to Term
First Claim
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1. A circuit breaker enclosure for providing overcurrent and arcing fault protection to an electric current distribution circuit, the circuit breaker enclosure comprising:

  • a main circuit breaker electrically connected in series with a plurality of branch circuit breakers within a common housing; and

    an arcing fault detection module arranged for interrupting a pair of main contacts within said main circuit breaker upon occurrence of an arcing fault current through a pair of branch contacts within one of said branch circuit breakers, the arcing fault detection module having an autocorrelation circuit to compare even and odd harmonic frequencies within the arcing fault current for detecting the presence of an arcing fault.

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