TRIPPING UNIT FOR CIRCUIT BREAKER
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United States of America Patent
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Issued Date -
Dec 8, 2011
app pub date -
Jun 6, 2011
filing date -
Jun 8, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A tripping unit is configured to send an electrical tripping-signal to a switching unit of a circuit breaker so as to trip main contacts of main circuits of the circuit breaker in response to a detection of a current being above a predetermined level in at least one of the main circuits. The tripping unit includes a fuse configured to be connected in series to a main circuit of the circuit breaker and a detection unit connected in parallel with the fuse and configured to generate the tripping signal for the switching unit in response to the fuse being blown.
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