CIRCUIT BREAKER WITH EASILY INSTALLED REMOVABLE TRIP UNIT

This concerns a molded case circuit breaker having separable main contacts and an operating mechanism utilized to cause the separable main contacts to open and close. A trip unit is provided to actuate the operating mechanism in desirable circumstances. The trip unit is removable. In this case the t...

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Bibliographic Details
Main Authors PARKS, DAVID ALLEN, MUELLER, ROBERT WILLIAM, WHITAKER, THOMAS ALAN
Format Patent
LanguageEnglish
French
Published 26.07.2011
Subjects
BASIC ELECTRIC ELEMENTS
CURRENT COLLECTORS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
LINE CONNECTORS
RELAYS
SELECTORS
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Summary:This concerns a molded case circuit breaker having separable main contacts and an operating mechanism utilized to cause the separable main contacts to open and close. A trip unit is provided to actuate the operating mechanism in desirable circumstances. The trip unit is removable. In this case the trip unit is insertable into a trip unit region in the case of the circuit breaker from the top or end thereof. The trip unit is then joined to an internal electrical conductor by way of a bolt and an internally fixed nut. The bolt can be driven into the nut through the trip unit conductor and the internal conductor from a position external to the circuit breaker case. The trip unit can be inserted into the trip unit conductor from a point above the circuit breaker case or vice versa. The trip unit has a securement nut built into its case.
Bibliography:Application Number: CA20002382256