Multi-pole circuit breaker system with common trip means

Details Multi-pole circuit breaker system with common trip means Multi-pole circuit breaker system with common trip means

1975-08-15

1977-08-16

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335172, 337 43, H01H 7700

Patent

active

040428940

ABSTRACT:
A multi-pole circuit breaker system includes a plurality of individual circuit breakers and at least one tripping action transfer device disposed between adjacent circuit breakers. The tripping action transfer device includes a lever pivotally supported at one end and carrying a rod shaped transfer member at its other end. The transfer member extends into the interior of the housings of adjacent circuit breakers and cooperates with their tripping mechanisms. A tripping operation of one circuit breaker engages the transfer member and causes actuation of the tripping mechanism of the adjacent breaker to initiate simultaneous tripping thereof.

REFERENCES:
patent: 2977443 (1961-03-01), Middendorf
patent: 2977444 (1961-03-01), Middendorf
patent: 3116387 (1963-12-01), Middendorf
patent: 3193646 (1965-07-01), Krebs et al.
patent: 3486150 (1969-12-01), Clark
patent: 3760308 (1973-09-01), Misencik
patent: 3840833 (1974-10-01), Mrenna et al.

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