... time and read all parameters including voltage, current, frequency and capacity etc. It can also record the alarm ... transfer time, typically less than 1/4 cycle TN280 Inverter moduleElectrical Model TN281,TN282,TN283DC InputNorminal Voltage48VDC, 110VDC, ... STS InputVoltage range:-25% - +20%Frequency range: ±10%OutputWork modeAC priority or inverter priorityTransfer timeless than 1/4 cycleRated ...