Molded case circuit breaker with a trip mechanism having an inte

Details Molded case circuit breaker with a trip mechanism having an inte Molded case circuit breaker with a trip mechanism having an inte

1984-09-28

1986-06-10

Marcus, Stephen

Electricity: circuit makers and breakers

Electric switch details

Latches

200153G, H01H 300

Patent

active

045944911

ABSTRACT:
A molded case circuit breaker includes an elongated intermediate latch lever disposed between and in engagement with an intermediate latch plate and a trip bar. The intermediate latch lever is pivotable about a pivot axis and includes a first elongated portion between the latch plate and the pivot axis of a length substantially less than the length of a second elongated portion between the pivot axis and the trip bar. The intermediate latch lever so configured reduces the force required and the amount of travel of the trip bar required to effect a trip operation.

REFERENCES:
patent: 2937258 (1960-05-01), Starr
patent: 3192344 (1965-06-01), Cole
patent: 3205333 (1965-09-01), Bonnefois et al.
patent: 4475021 (1984-10-01), Mochizuki et al.

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