Thermal overload relay
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United States of America Patent
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Issued Date -
Sep 30, 2010
app pub date -
Feb 23, 2010
filing date -
Mar 27, 2009
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A thermal overload relay has an actuator mechanism that generates an operating force by bending of a main bimetal with a heating wire wound thereon; a switching mechanism that is driven by the operating force from the actuator mechanism; a contact changeover mechanism wherein contacts are changed by the switching mechanism operation; and a casing that contains the actuator, the switching and the contact changeover mechanisms. The casing has main circuit terminals and auxiliary circuit terminals arranged on one side, the main circuit terminals electrically connecting the thermal overload relay to an electric load device, and the auxiliary circuit terminals electrically connecting the thermal overload relay to another electric device. When the casing is viewed in plan, the main circuit terminals are aligned and, the auxiliary circuit terminals are arranged in a position offset from the position of the alignment of the main circuit terminals.
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