Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices
Patent
1994-06-23
1995-09-26
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Automatic circuit-interrupting devices
335202, 335201, H01H 7300
Patent
active
054537231
ABSTRACT:
A miniature circuit breaker with two thermal-magnetic poles has an electronic trip device providing ground fault, and sputtering arc fault (if desired), protection located entirely in a large central compartment of a molded housing between compartments housing the two mechanical poles. The current rating of the circuit breaker is increased by a gas vent channel extending between the two mechanical pole compartments adjacent the respective breaker contacts which allows gases generated by arcing during current interruption to expand into both outer compartments, thereby permitting the circuit breaker to interrupt larger short circuit currents. The gas vent channel extends through, but does not communicate with, the central electronics compartment.
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patent: 4686600 (1987-08-01), Morris et al.
patent: 5159304 (1992-10-01), Yamagata et al.
patent: 5260676 (1993-11-01), Patel et al.
patent: 5276418 (1994-01-01), Klosowiak et al.
Fello Joseph P.
Whipple Michael J.
Donovan Lincoln
Eaton Corporation
Moran Martin J.
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