Power interrupter with force-sensitive contact latch

Details Power interrupter with force-sensitive contact latch Power interrupter with force-sensitive contact latch

1989-05-18

1991-03-05

Tolin, Gerald P.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335 16, 335195, H01H 7500

Patent

active

049980815

ABSTRACT:
A low voltage electrical power circuit breaker in which an actuator in the form of a pushrod controls the separation of arcing contacts by an actuating mechanism, a force-actuated mechanical latching assembly is interposed between the pushrod and the actuating mechanism. Under fault current conditions, the current-induced force tending to open the contacts exerts sufficient force on the latch assembly to unlatch it, thereby permitting the contacts to open freely on their own, without waiting for the operation of the actuating mechanism.

REFERENCES:
patent: 4237923 (1980-12-01), Pressaco
patent: 4307752 (1981-12-01), Inada
patent: 4413244 (1983-11-01), Hafner
patent: 4454490 (1984-06-01), Belbel et al.

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