The GCD type AC low pressure switch cabinet is the technology advancement and developmental item issued by the Department of Energy Electric power, designed by low pressure complete set switching gear union design and R&D group. The product may be widely applied in the power plant, the transformer substation, the industrial and mining establishment. The suitable AC frequency 50HZ, the fixed working voltage 380V, the fixed operating current 3150A for the electrical power distribution system. It plays the role as the power, the illumination and switching equipment's computer transformer, the assigners and controllers.