... standard 48 Vdc digital controlling rack mount pure sinewave 3KVa inverter,Inverter specifications ModelLI10L-RM-INV LI15L-RM-INV LI20L-RM-INV ... , TemperatureDigitalI/P&O/P voltage, O/P Frequency, battery, loadAlarmAlarmMains failure, battery low, overload, inverter faultMutemanualNoise< 45 dB (at 1 meter)EnvironmentTemperature0 ... )(mm)430 x 460 x 133 1kva/2kva/3kva high frequency 48VDC Inverter