Circuit breaker comprising ventilation channels for efficient heat dissipation
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United States of America Patent
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Sep 29, 2015
Grant Date -
Nov 13, 2014
app pub date -
Sep 3, 2012
filing date -
Sep 21, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A circuit breaker includes a housing equipped with a first switchgear region, in which a quenching chamber device and a sliding contact device having movable contacts are located, the contacts lying opposite fixed contacts, and equipped with a second switchgear region, in which a current release assembly consisting of a short-circuit release and an overload release are located. In an embodiment, a continuous ventilation channel is formed within opposing housing walls along the fixed contacts, the channel acting as a first convective air-flow through the circuit breaker in order to dissipate the heat.
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