Voltage:220v/380v 50Hz/60Hz Pole:2P/4P Speed:2850s.p.m./3450s.p.m. Power:250W,370w Special specifications upon your order Voltage:single phase 100-250v three phase 200-400v 50Hz/60Hz Pole:2P/4P Speed: 1425s.p.m./1725s.p.m/2850s.p.m./3450s.p.m. Power:200w,250W,400w,550W