inverter Model NB-Y**** 301401501601751102Rated capacity(W) 300W400W500W600W750W1000W InputCommercial Power range(VAC) 100/110/120/127/220/230+25%,-35%Frequency(Hz) 60/50±10% OutputAVR voltage rangeVAC 100/110/120/127/220/230±10%(Auto-sensingWaveform Sine waveFrequency(Hz) Commercial power supply: shared frequency with the commercial inversion state:60/50±0.5Transfer time Typical5ms(Including detecdion time)Protection overload IPS automatically shutdown if overload exceeds 120% of normal value for 10 seconds, IPS automatically resume work if overload comes to rated load.Short circuit Ups stop immediately and will restart 4m laterBattery TYPE Sealed, maintenance-free lead acidRecharge current 15A(Maximum)Battery protection Automatic self-test, discharge protection, over-chargeing protected, smart management system.Battery DC Voltage 12VDC12/24VDC24VDCAppearsnceExternal Size(mm)D×W×H312×262×118Packing Size(mm)D×W×H414×311×375(2piece)Net weight(kg)6.5 7.3 9.0 10.9 12.5 12.8 Gross weight(kg)14.2 15.8 19.2 23 26.2 26.8