| 摘要 |
PROBLEM TO BE SOLVED: To provide a circuit breaker that prevents control-circuit plug from suddenly coming off from a control-circuit connector. SOLUTION: The circuit breaker has a distribution switchboard 1 with the control-circuit plug 10; a breaker body 3 provided with the control-circuit connector 20 to insert or pull the control-circuit plug 10, and with a terminal for supplying voltage and current; a cradle 2 mounted on the distribution switchboard 1 and provided with a terminal connected to and disconnected from the terminal of the breaker body 3; and a wagon 30 slidably mounted on the cradle 2 with the breaker body 3 mounted thereon. Further, the breaker has a transfer unit provided between the wagon 30 and the cradle 2 to transfer the wagon 30, a first locking unit provided between the control-circuit plug 10 and the control-circuit connector 20 to limit separation of the control-circuit plug 10 from the control-circuit connector 20, an interlocking unit connected to the first locking unit to move in the inserting direction of the control-circuit plug 10 along with the connected first locking unit, and a second locking unit connected to the interlocking unit to limit operation of the transfer unit along with the connected interlocking unit. COPYRIGHT: (C)2011,JPO&INPIT |
