Circuit breaker with increased contact separation

Details Circuit breaker with increased contact separation Circuit breaker with increased contact separation

1981-02-10

1982-08-24

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335 14, 335174, H01H 7500, H01H 7700, H01H 8300

Patent

active

043463568

ABSTRACT:
A circuit breaker having a larger separation distance between a stationary contact 4 and a movable contact 6 in the automatic mode than in the manual mode. The pivot shaft 24 of a crank 13 is placed in a higher position than in a conventional circuit breaker, to thereby enable the arm 7 carrying the movable contact 6 to rotate through a greater angle. A stop plate 26 is provided to prevent the flex angle .theta. formed between a first link 11 and a second link 12 of a toggle mechanism 10 from becoming too small when the contacts are opened, which enables easy manual closure with the normal stroke of a switch handle 16 and avoids the need for a stronger spring 17.

REFERENCES:
patent: 3599130 (1971-08-01), Murai et al.

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