... pure sine wave wind inverter4. Protection function completely, output short-circuit protection( take load short-circuit), overload protection, DC overload or under-voltage protection.5. Strong ability of ... ±1%380v±3% ,or208v±1%O/PFrequency50HZ/60HZProtectionsProtection against short-circuit, overload, over-heating, and high-low voltageUnit Size (MM)372 ...