48 Vdc digital controlling rack mount pure sinewave 1.5KVa inverter,19inch series are in accordance with international standard 48 Vdc digital controlling ... &O/P voltage, O/P Frequency, battery, loadAlarmAlarmMains failure, battery low, overload, inverter faultMutemanualNoise< 45 dB (at 1 meter)EnvironmentTemperature0 - 40Humidity< 95% (Non ...