ELECTROMAGNETIC REPULSION ACTUATOR FOR CIRCUIT BREAKER

The present invention relates to an electromagnetic repulsion actuator for a circuit breaker. The present invention comprises: a housing (10); a first fixed electrode (20) having therein an operating space open at both sides; a pair of movable electrodes (50) capable of reciprocally moving and being electrically connected to the first fixed electrode; second fixed electrodes (60) selectively contacting the pair of movable electrodes to be electrically connected thereto, thereby transferring power supplied from a first side to a second side; and actuating coils (30, 40) selectively moving the movable electrodes in a direction of being separated from the second fixed electrodes by generating electromagnetic force from induced current. In the present invention as above, the structure of a circuit breaker is simplified and moving speeds of the movable electrodes (50) are increased since the movable electrodes (50) move by using induced current generated by a close coil (30) and open coils (40) to perform an open operation.