... N+GNDOUTPUTVoltage220/230/240±2%VACFrequencySynchronous with Input Frequency(Utility Mode)/50±0.2% ... 9AH*20Back-up Time(Half/Full Load)≥4/10≥5/12Charging Voltage41VDC110VDC275VDCCharging Current0.5- ... Efficiency≥90%IndicatorsLCDVFD/LCD Indicator StatusInput/Output Voltage,Frequency,Output Power,Battery,Utility,Inverter,Overload,Fault,BypassCommunication ... & Sine Wave Uninterruptible Power Supply(UPS)