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US 5,686,709 AGranted
Modular trip bar assembly for multipole circuit breaker
AssigneeGeneral Electric Company
InventorsRobert Casagrande, Erich J. Pannenborg, Andre J. M'Sadoques, Gary Paul Michaelis
Life of this patent
Estimating the term…
Abstract
A modular plastic trip bar assembly joins separate single pole molded case circuit breakers into a single multipole circuit breaker. The addition of the trip cam to the trip bar assembly allows four and five pole combinations to operate in unison.
Claims4
A multi-pole composite circuit breaker comprising:
- a plurality of single pole circuit breakers, a first of said single pole circuit breakers including a thermal-magnetic trip unit, separable contacts, a first latch and a first operating cradle all within a first molded plastic case, said first cradle interacting with said first latch to interrupt said contacts upon occurrence of an overcurrent;
- and
- a modular trip bar, said trip bar comprising a support post having a plurality of trip cams integrally-formed thereon, one of said trip cams interacting with a second latch within a second one of said single pole circuit breakers to move said second latch away from a second cradle when said first cradle interacts with said first latch.
Dependencies are inferred from the claim text.