| 摘要 |
PURPOSE: An MCC(Motor Control Center) using a step connector integrated circuit breaker is provided to reduce an installation space of an MCC by using tree cubicles for comprising the MCC. CONSTITUTION: An MCC unit includes a step connector integrated circuit breaker(100) connected to a vertical bus line, a second withdrawal connector for distributing inputted power, and a door. The step connector integrated circuit breaker includes a step connector(180) combined with the circuit breaker. A first contact terminal(120) of a circuit breaker is inserted into a connection bar(140) through a first insulation member(130). A first leaf spring(170) is installed in the first contact terminal. A first insulation member includes a recess which mounts a connection bar and a bolt hole. A plurality of fitting grooves are formed on one side of a second insulation member(150) which mounts the step connector. The second withdrawal connector is composed of a socket connector and a plug connector. |
