48V30A 1500W telecom power supply

48V30A 1500W telecom power supply DUM4810(1U)DUM4820(2u,19'')DUM4830(2u,19'')AC INPUT ACInput VoltageAC:220vAC:220vAC:220vInput voltage range176-264V165-270VAC:165-270VOperating Frequency Range45-65HZ45-65HZ45-65HZInput Power Factor0.99(full load) with PFC≥0.99(full load) with PFC≥0.99(full load) with PFCVoltage waveform distortionVoltageTHD1%,CURRENCE THD 5%(output full load)VoltageTHD1%,CURRENCE THD 5%(output full load)VoltageTHD1%,CURRENCE THD 5%(output full load)DC OUTPUTOutput Floating Charge Voltage-43 -59V-43 -56.4V-43 -56.4VModule equalizedCharge Voltage-50 -59V-50 -59VOutput Current Range0-11A0-21A0-32A(output rated voltage)Efficiency88%≥90%≥90%Line Regulation±0.1%(Output zero load to full load )±0.1%(Output zero load to full load )±0.1%(Output zero load to full load )Load Regulation±0.4%(Output zero load to full load)±0.4%(Output zero load to full load)±0.4%(Output zero load to full load)Output Current Limit30% 105% rated current30% 105% rated current30% 105% rated currentOutput Phone Constant Weight Noise1.5MV1.5MV1.5MVBroad Band10MV(3.4KHZ 30MHZ)10MV(3.4KHZ 30MHZ)10MV(3.4KHZ 30MHZ)Output Peak Noise150MV(0-20MHZ)150MV(0-20MHZ)50MV(0-20MHZ)Equalized-Current Deviation±5%±5%±5%Accuracy of voltage stabilization ±0.5%±0.5%±0.5%COOLINGForcing air coolingForcing air coolingForcing air coolingPROTECTIONovercurrent protection,overvoltage protection, overheat protection,low-voltage protectionovercurrent protection,overvoltage protection, overheat protection,low-voltage protectionovercurrent protection,overvoltage protection, overheat protection,low-voltage protectionWORK ENVIRONMENTWORKING TEMPERATURE-10 50°C-10 50°C-10 50°CWorking altitide3000m3000m3000mWorking Humidity95% RH Without Condensing95% RH Without Condensing95% RH Without CondensingDIMENSION (L*W*H)mm480*44*320mm(1u),horizontal 44*480*320mm(1u),vertical480*88*360mm(2U,19") ,horizontal480*88*360 mm (2u,19'') horizizontalWEIGHT3.5KG5.5KG6.5kg