Current limiting circuit breaker compact arc chute configuration

Details Current limiting circuit breaker compact arc chute configuration Current limiting circuit breaker compact arc chute configuration

1990-01-29

1990-11-13

Picard, Leo P.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

With arc-suppression or extinguishing means

200147R, H01H 930

Patent

active

049704826

ABSTRACT:
A compact circuit breaker utilizing an electronic trip unit for overcurrent determination contains a compact slot motor and a compact arc chute to minimize and control the arc that occurs when the circuit breaker fixed and movable contacts become separated upon intense overcurrent conditions. The fixed contact is arranged on a fixed contact arm that includes an arc runner for rapidly directing the arc into the arc chute. The arc chute includes a keying arrangement which cooperates with slots formed within the circuit breaker case interior sidewalls to orient the arc plates relative to the arc runner.

REFERENCES:
patent: 4218596 (1980-08-01), Cuasing
patent: 4375021 (1983-02-01), Pardini et al.
patent: 4527027 (1985-07-01), Link et al.
patent: 4733032 (1988-03-01), Pardini
patent: 4754247 (1988-06-01), Raymont et al.
patent: 4885441 (1989-12-01), Hisatsune et al.

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