1,High efficiency, Energy-saving 2,Low noise, Little vibration 3,Power supply 380V,660V,50/60Hz 4,Cooling method: IC411 ... -cage construction and a general application. Its frame central heightAdvantages:high efficiency, low energy consumption, little noise, light weight,small bulk ... way: Y below 3kw Triangle above 4kw Y Series three phase ac motor 30hp