Disconnect switch with overcurrent device and enclosure for reduced hazard
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United States of America Patent
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Issued Date -
May 6, 2010
app pub date -
Jan 4, 2010
filing date -
Jan 4, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A disconnect switch and an overcurrent protection device are combined in a single enclosure which has two isolated compartments, with independent access to each compartment. The enclosure is adapted for mounting on a vertical surface (suitable for mounting on a wall). The disconnect switch is contained within a first compartment, and the overcurrent protection device is contained within a second compartment. Interconnecting conductors connect the disconnect switch to the overcurrent protection device through an enclosure wall which separates the two compartments. After installation in an electric power system, when the disconnect switch is in the OFF position, shock hazards and arc-flash hazards are present only within the compartment containing the disconnect switch. The compartment containing the overcurrent protection device is completely de-energized, and can therefore be safely accessed for maintenance, inspection, and testing.
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