H-Series – It strictly complies with CE and IEC standards and is empowered with advanced electric control technology and able to work under a power source of 380V±20%. In addition, it is installed with a power supply protection module, enabling it to make a selection of protective value in a range of 380V±50%. When voltage goes beyond the selected range, it will automatically protect the unit. While the voltage becomes normal, it will automatically restart the unit.