True intelligent UPS with the MCU control. True on-line UPS. pure sine wave output. Using the pwer unit IGBT to make the UPS more efficiency and reliable. Output three phase 100% unbalanced load, operate continuously. Unique output short circuit protection, jump-free main switch. electronic power It is safe and reliable with the isolation transformer. Whole protection against load, auto limitcurrent, it is conformed to the start requiremen of different load. DC cold start ability can provide convenient and flexible progamme for the users. Long standby time, it also can be connected with the generator and constitute the long standby time. Obtained remote control, remote control, remote survey port(standard equipment) and provide remote supervisory indicator.