Patent ID: 7985936

Claim:
An apparatus for indicating a closing operable state for an air circuit breaker, the apparatus comprising: a micro switch installed at a switching mechanism providing a driving force for switching contactors, provided with a lever extended into the switching mechanism so as to receive the driving force, generating and outputting an electric signal for indicating that the air circuit breaker is in a closing operable state, and provided with a signal transmitting terminal for transmitting the electric signal to a remote place; and an on coupling that presses the lever of the micro switch so that the micro switch generates and outputs the electric signal only when a closing spring for providing elastic energy for switching the contactors charges elastic energy and the air circuit breaker is opened, the on coupling having a switch operation part that protrudes from a vertical surface of the on coupling, wherein an edge of the switch operation part faces and is configured to press the lever of the micro switch.