Patent ID: 8299380
Filing Date: 2012-10-30
Classification: H02B

Abstract:
1. A circuit breaker having a position indicating apparatus, the circuit breaker comprising: a cradle having a bus bar terminal and a load terminal; a main body having a bus bar connection unit and a load connection unit respectively connected to the bus bar terminal and the load terminal, and configured to be movable to a run position that the terminals and the connection units are connected to each other, and to a test position that the terminals and the connection units are separated from each other; and a position indicating apparatus configured to outwardly display a position of the main body by interworking with motion of the main body, wherein the position indicating apparatus comprises: a movable pin interworking with motion of the main body; a guide member configured to guide motion of the movable pin; a cam member configured to move the movable pin by contacting the movable pin; an elastic member configured to provide an elastic force such that the movable pin contacts with the cam member; and a display unit configured to display a position of the main body corresponding to a position of the movable pin by interworking with motion of the movable pin, wherein the guide member comprises: a guide panel having a guide slot into which the movable pin is inserted: supporting plates bent from both sides of the guide panel; and fixed plates disposed at the ends of the supporting plates, and fixed to a bottom surface of the main body of the circuit breaker.