【中文】适用于变电站、发电厂、厂矿企业、高层建筑、市政建设等电力用户的交流50HZ，额定工作电压380V，额定工作电流1000-3150A的配电系统，作为动力、照明及发配电设备的电能转换、分配与控制之用。
【English】Suitable for AC 50 Hz power distribution systems with a rated operating voltage of 380 V and a rated operating current of 1,000–3,150 A used by power users such as substations, power plants, industrial and mining enterprises, high-rise buildings, and municipal construction projects, for the conversion, distribution, and control of electrical energy for power, lighting, and power generation and distribution equipment.
