FAST-ACTING AUTOMATIC CIRCUIT BREAKER Russian patent published in 2010 - IPC H01H77/06 

FIELD: electricity.

SUBSTANCE: fast-acting automatic circuit breaker comprises movable and fixed contacts, disconnecting spring, spring of free release, magnetic conductor with restraining coil, main anchor and anchor of free release. Main anchor and anchor of free release are mounted on magnetic conductor with the possibility of rotation relative to magnetic conductor and towards each other, with limitation of the main anchor motion depending on position of free release anchor, at the same time main anchor, anchor of free release and magnetic conductor serve as single magnetic-conducting circuit, and movable contact is arranged directly on the main anchor.

EFFECT: reduced dimensions, reduction of weight and provision of high efficiency of the breaker.

3 dwg