IE4 super premium efficiency was the highest level of current global energy efficiency. The four products of YZTE4 series (IP55) threephase induction motors with diecast copper rotor, YE4 Series (IP55) threephase induction motors (H80~355), YE4 series (IP55) lowvoltage highpower threephase asynchronous motor and TYE4 series (IP55) self starting permanent magnet synchronous motor were introduced. They had reached the IE4 efficiency level.