Circuit breaker

Details Circuit breaker Circuit breaker

1988-05-17

1989-12-19

Picard, Leo P.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Latching means

335172, H01H 920

Patent

active

048885703

ABSTRACT:
In a trip relay mechanism (50) of circuit breaker wherein a latch (23A), a latch lever (25A) and a trip bar (34) are urged to engage with each other; the trip bar (34) is disposed between the latch (23A) and the latch lever (25A) in the direction of power source side-load side of the circuit breaker and they (23A, 25A, 34) are urged by one double-torsion spring (35), and further the trip bar (34) is separated into a main part (34B) extended over each pole and a latching part (34A) for engaging the latch lever (25A).

REFERENCES:
patent: 3053954 (1962-09-01), Jencks et al.
patent: 3492690 (1970-01-01), Murai et al.
patent: 4622530 (1986-11-01), Ciarcia et al.
patent: 4724411 (1988-02-01), Matsumoto et al.
patent: 4736174 (1988-04-01), Castonguay et al.

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