AUT1339L series UPS is a three-phase in and three-phase out high frequency UPS with medium and large power capacity, suitable for integration with the latest Lithium-Ion technology. 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.