Circuit breaker

Details Circuit breaker Circuit breaker

1998-02-19

1999-03-23

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Tripping means

335177, H01H 900

Patent

active

058866043

ABSTRACT:
A circuit breaker having superior shock and vibration resistance is provided. The circuit breaker has a handle pivoted from an off position to an on position. The circuit is closed by bringing a movable contact point into contact with a fixed contact point via lever mechanisms. The circuit breaker has an electromagnetic coil which holds the movable iron piece in a non-attraction position away from an electromagnetic trip coil until power is applied to the electromagnetic trip coil. When the movable iron piece is attracted to the electromagnetic trip coil, the lever mechanisms are released from the constrained state, and the movable contact point is separated from the fixed contact point to thereby open the circuit, and the handle returns to the off position in conjunction with the lever mechanisms.

REFERENCES:
patent: 2443991 (1948-06-01), Penniman
patent: 5468925 (1995-11-01), Mohsen
patent: 5684443 (1997-11-01), Runyan et al.

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