Circuit interrupter with improved surge suppression
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United States of America Patent
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Dec 3, 2013
Grant Date -
Jan 31, 2013
app pub date -
Jul 29, 2011
filing date -
Jul 29, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A circuit interrupter, such as a GFCI or AFCI product, is provided having a suppression and protection circuit and circuit interrupter circuitry. In one configuration, a semiconductor device and a voltage clamping device or surge protector, such as a metal oxide varistor (MOV), are utilized in the circuit interrupter for handling transient surges and overvoltage conditions. The semiconductor device, such as a SIDCA and a TVS diode, is connected to a solenoid or trip coil of the circuit interrupter circuitry to limit the amount of current through the semiconductor device. The MOV is placed between phase and neutral conductors of the circuit interrupter circuitry.
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