One axis shutter with a pin-based bus system for miniature circuit breaker load centers
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United States of America Patent
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Feb 7, 2017
Issued Date -
N/A
app pub date -
Jul 17, 2015
filing date -
Jul 17, 2015
priority date (Note) -
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Abstract
Apparatus for substantially eliminating exposure to live parts in a load center includes a bus assembly with male-terminal stabs which are capped with nonconductive material. A nonconductive structure covers the bus assembly and allows only the stabs to pass into the interior of circuit breaker compartments. A shutter assembly in each circuit breaker compartment has a nonconductive shutter plate that moves only in the Z axis to provide access to the stabs when a circuit breaker is inserted with a Z axis motion. Inserting the circuit breaker in the load center causes a shutter plate latch to open and depress the shutter. When the circuit breaker is removed from the load center, the shutter plate is biased upward and latched in a position over the stabs. No live touch points are available in the load center.
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