| 摘要 |
PROBLEM TO BE SOLVED: To obtain a control circuit connecting device of a drawer type circuit breaker where even if a circuit breaker related to electrical interlocking is drawn out of a frame, it does not allow electrical interlocking to relate thereto. SOLUTION: The position of a main circuit terminal shifts from a test position to a shut-off position depending on the amount of drawing from the connection position where the main circuit terminal of a circuit breaker body contacts with a power distribution line side main circuit conductor. At the connection position and the test position, a normally-closed auxiliary contact point of the circuit breaker body which holds a conductive state is made to be conductive to an electric circuit provided outside the circuit breaker body, when the connector of a housing which is in an electrically connected state is opened from a main circuit contact point by way of the contact of a terminal stage. At the shut-off position where the connector is in a non-electrically connected state with the contact, functions of an electric circuit are maintained so that a switch attached near the terminal of the terminal stage connected to the electric circuit becomes conductive. COPYRIGHT: (C)2007,JPO&INPIT |
