... little vibration 3high efficiency,w price 4superior life Production description:high torque low rpm 120v electric motorY3 series motors are totally ... Y3series motor have outstanding performance,such as high efficiency ,energy saving,high starting torque,low noise,slight vibration,reliable operation and ... ; Delta-connection for 4Kw and aboveIP44, IP54B/F IC0141 high torque low rpm 120v electric motor