Multi-pole circuit breaker

Details Multi-pole circuit breaker Multi-pole circuit breaker

1976-07-22

1978-02-28

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335 10, H01H 7102

Patent

active

040770249

ABSTRACT:
A molded case circuit breaker comprising a case divided longitudinally into two approximate half cases. Each case defines an arcing chamber. Further, each half case has a side wall, an end wall, and a top wall. The end walls of each half case define an opening through which the arc gases are vented. The top walls of each half case define an inverted U-shaped cavity. A V-shaped screen has one leg thereof placed against the end walls to restrict the opening. The other leg of the V-shaped screen extends into the U-shaped cavity, but is spaced from the wall defining the U-shaped cavity. The V-shaped screen has legs which are spaced apart to provide a space through which the arc gases may pass. The circuit breaker also includes a stationary contact surrounded on all sides but one by an arc runner which is keyed to a supporting conductor. Further, two or more circuit breaker poles may be interconnected at their handle links with only one handle link extending outwardly of deep wells formed by portions of the half cases for manual operation of the multi-pole circuit breaker formed thereby.

REFERENCES:
patent: 2913542 (1959-11-01), Myers
patent: 3832663 (1974-08-01), Gelzheiser
patent: 3842376 (1974-10-01), Mune

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