We have got the certification of UL and ISO 9001 1) Frame size: 63-A250MC 2) Rated power:1/6-100HP 3) Rated voltage: 110V, 220V,380,440,660 4) Frequency: 50Hz, 60Hz 5) Protection class: IP44, IP54, IP55 6) Materials: cast iron, aluminum, steel (FRAME 63-A250MC) 7) Poles: 2, 4, 6, 8, 10 8) Relative humidity: not higher than 90% 9) Special motors can be designed according to customers' requirements 10) Export markets: Europe, North America, the Middle East, Africa, Southeast Asia, East Asia, South America