Low Frequency UPS 20KVA 1,low frequency online ups 2,IGBT technology 3.,OEM is accepted and Factory price Low Frequency UPS 20KVA ModelTX-10KSTX-20KSTX-30KSTX-40KSTX-50KSTX-60KSTX-80KSTX-100KSTX-120KSRated / Effective Capacity10kva/8kw20kva / 16kw30 kva/ 24kw40 / 3250 / 4060 / 4880 / 64100 / 80120 / 96InputVoltageRated 380VAC±20% Phase3P4W + GOutputVoltage380VAC±1%Phase3P4W + GVoltage ...