Yueqing Sandi Electric Co.,Ltd is one of the leading China inverter 220v to 380v manufacturers,Website:http://www.cnsandi.com, welcome to wholesale cheap inverter 220v to 380v from our professional factory.Technical Parameters ModelSDT-3KWIsolationLow Frequency TransformerAC Input Input rated voltage(VAC)Single phase 220V Input rated voltage range110/120/220/230/240Vac optional Input rated current(A)13.6AAC OutputRated AC output power3KW AC output waveformPure sine wave PhasesThree phase, 4 wires Output rated voltage380VAC ±3% Output voltage range380/400/415/440/480Vac optional Output Frequency50Hz/60Hz±0.05Hz Output rated current(A)4.5A (per phase) Power Factor(PF)0.95 Overload Ability150%, 10s Efficiency  >94% Waveform distortion rate (THD)<3%(Linear load) Crest Factor (CF)3:1 Display LCD Electrical insulation properties2500Vac, 1 Minute Ambient temperature-15~+55℃ Using environment humidity0~90%,No condensation ProtectionInput under voltage, overvoltage, output over-current, short circuit, overheating etc.StructureCooling methodFan-cooled Noise<40dB Degree of protectionIP20(indoor) Using altitude(m)≤3000CE StandardEN60950-1:2006+A11:2009, EN61000-6-4:2007+A1:2001, EN61000-6-2:2005, EN61000-3-12:2005, EN61000-3-11:2000