Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – With housing or support means
Patent
1999-08-18
2000-11-07
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
With housing or support means
335172, 335167, H01H 902, H01H 1304
Patent
active
061442712
ABSTRACT:
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 vise versa. The trip unit has a securement nut built into its case.
REFERENCES:
patent: 3264435 (1966-08-01), Klein et al.
patent: 4146855 (1979-03-01), Schultz et al.
patent: 5910760 (1999-06-01), Malingowski
Mueller Robert W.
Parks David A.
Whitaker Thomas A.
Donovan Lincoln
Eaton Corporation
Moran Martin J.
Nguyen Tuyen T.
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