GGD series of switchgear is suitable for use in power plant, substation, factories and mines, high-rise buildings and other power users of AC 50Hz, rated voltage 380V, rated current up to 4000A distribution system, as power, lighting and power distribution equipment of electric energy conversion, distribution and control. The product conforms to the IEC439 "low voltage switchgear and control equipment", "GB7251" and other standards for low voltage switchgear.