ELECTRICAL SWITCHING APPARATUS AND THERMAL TRIP ASSEMBLY THEREFOR

A thermal trip assembly is for an electrical switching apparatus. The electrical switching apparatus includes a housing, separable contacts enclosed by the housing, an operating mechanism for opening and closing the separable contacts, and a number of shunts. The thermal trip assembly includes a loa...

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Bibliographic Details
Main Authors SISLEY, JAMES PATRICK, MALINGOWSKI, RICHARD PAUL, JANSTO, BRIAN SCOTT, PUHALLA, CRAIG JOSEPH
Format Patent
LanguageEnglish
Published 28.06.2018
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Summary:A thermal trip assembly is for an electrical switching apparatus. The electrical switching apparatus includes a housing, separable contacts enclosed by the housing, an operating mechanism for opening and closing the separable contacts, and a number of shunts. The thermal trip assembly includes a load conductor, a bimetal adapted to cooperate with the operating mechanism to open the separable contacts in response to a trip condition, and a bypass heater element structured to be electrically connected to the shunts. The bypass heater element directs the flow of electric current to at least partially bypass the bimetal.
Bibliography:Application Number: US201615387717