Following IEC standard, insulation class E comes with low vibration level and low noice, which is the advantage of 3-phase motor developed from 1-phase motor of Hitachi. Your satisfaction is guaranteed because it can be used in a variety of industries with high engine performance. We believe in high quality products in which we strictly control our manufacturing process for high quality and performance. Therefor, high engine performance. with low vibration level makes our Hitachi motor one of the best and highly satisfies our customers worldwide.