... formSine WaveVoltage T.H.D.<2% with linear load, <5% with nonlinear loadCrest factor / power factor3:1 / 0. ... Battery breaker, Bypass breaker; DC Fuse, Fan, redundant power supply; temperature sensor, EPO (Emergency Power Off), audible alarmsSoftware ProtectionsDischarging ... high output voltage, DC fuse open, %v power supply fail, 13.5 v power supply fail, inverter overvoltage, 200% overload on each ...