TRIP DETECTOR OF A CIRCUIT BREAKER

摘要

PURPOSE: A trip detector of a circuit breaker is provided to broaden a selection range of instant operations up to a low overcurrent range by increasing an attracting force with the improvement of an amateur structure. CONSTITUTION: An auxiliary protrusion(4a) is formed in one body to an amateur(4). The auxiliary protrusion(4a) formed in a bent shape increases the number of magnetic flux to enhance an attracting force of the amateur(4) with respect to a fixing core(3). The auxiliary protrusion(4a) is formed on a lower portion of a rotation point of the amateur(4). The fixing core(3) generates the magnetic flux when an overcurrent occurs, and the amateur(4) is rotated to be attracted to the fixing core(3) by an inductive operation of the magnetic flux.