... . With PWM invert technology, inverter power outputs pure sine wave, applying to capacitive, inductive and nonlinear mixed-load,with ... voltage48VDC(range :42VDC to 55VDC)Battery typemaintenance free,lead acid battery Power factor0.8Max efficiency≥87%(100%load)Output modeInverter ... 415VAC 3-phase 4-wire ±1%Frequency50/60HZ±1%Wave formPure sine waveTHD≤3%Protection functionoverload,short circuit,low ...