1. All digital DSP control technology;

2. Advanced IGBT inverter technology;

3. Pure on-line double conversion technology;

4. Perfect protection:AC input/output over/under voltage, over load, short circuit, over-temperature, under-voltage warning, and battery over charge protection etc.;

5. Reduntant parallel function:up to 8 units can be paralleled freely;

6. Powerful communication system: RS-232 PORT, dry contact relays, emergency switch EPO interface;

7. Low self-consumptioin and high efficiency;

8. Pre-alarm system;

9. Friendly Touch Screen display;

10. Wide AC input range;

11. Powerful overload ability: under inverter mode-overload capacity 110%/125%/150% for 300min/10min/1min; under bypass mode, oerload 150%/170%/250 for 60min/10min/1min.