AUT1339 series UPS is a three phase in and three phase out high frequency UPS  with medium and large power capacity. Equipped with three level inverter topology, it results in high efficiency. With higher power density, smaller footprint, it takes the leading position in the UPS industry with same power capacity; Adopting unique power unit redundancy design technology, decrease the abnormity risk of system after single point failure, greatly increase the system reliability. For user, it is your best choice with high investment rate.