Circuit interrupter with improved surge suppression
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United States of America Patent
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May 31, 2005
Grant Date -
N/A
app pub date -
Apr 9, 2001
filing date -
Apr 9, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A suppression and protection circuit is used in conjunction with a circuit interrupter. In one configuration, a voltage clamping device such as a metal oxide varistor is utilized in a ground fault circuit interrupter product for handling transient surges and overvoltage conditions and is placed in series with a solenoid coil. The suppression and protection circuit includes a crowbar device across the line such as a header spark gap to prevent overvoltages, and a low pass filter such as an LC filter for suppressing transient surges.
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