For three-phase motors from 0.5 to 630 KW with single-phase power supply (1 X 220V) (from 0.4KW to 3.7KW), three-phase (3X380V) to 55KW and three-phase (3X690V) 11KW-15 KW. Features high performance, small size, reduced noise, high torque, reduced harmonics and fast processing. Suitable for conveyor belts, CNC metallurgy machines, ventilation etc.