... supply manufacturers 2.Efficiency 90% 3.Charging current 8A 4.Output P.F 0.8 5.H.Fand true sinewav Uninterruptible ... groundRange voltage200,220,230,240VACFrequency50/60HzVoltage range115~300VAC±5 @ half load; 176-296VAC±5 @ full loadFrequency range45~55Hz±0.5Hz ... /P Voltage, I/P& Frequency,Battery voltage,UPS status, load, temperature,O/P Voltage,Frequency, B/P Voltage,Frequency CommunicationsRS232 ...