FVC33-7.2/12D,Y,J/D400-6.3T(B) series vacuum contactor is used in an AC. 50-60 Hz electric power system, with rated working voltage is 7.2kV/12kV, and rated current of 400A, for direct or romote on-off control and circuit-breaking control of the of the main load. It is especially suitable for the frequently operated electric control applications such as electric motors, transformer, etc. This series of products adopts integral type frame, so the bottom car can easily move out of the control carbinet. And it also adopts up-and-down layout between the main circuit and controlling circuit, and electrical latch or machanical latch, and vacuum interrupter with ceramic shell.