GVC7-1600A/1140V-A series vacuum contactor is used in an AC. 50-60 Hz electric power system, with rated working voltage of 1140V, and rated current of 1600A, for direct or remote on-off control of the main circuit, disconnect motor rotor winding loop. It is suitable for the electric-cotrolling condition which needs large current control, under AC-1 and AC-2 operation. This series adopts before- and-after layout between the main circuit and controlling circuit, and adopts electrical latch or machanical latch, and vacuum interrupter with glass shell.