1,High Frequency Online UPS 2,IGBT technology 3,VAR,Overload and short circuit protection ... output changes into bypass,over 150%, remains 200msCommunication PortRS-232 + Intelligent SlotOperating EnvironmentTemp.0-40Humidity20%-90% non-condensingDimension (L×W×H ... weight (kg)13734183519QTY / 20ft Container(unit)850145075014007301380 High Frequency Online UPS (3KVA)