The YT series three-phase asynchronous motor is driven by the concept of a cooling axial fan, said motor uses specially designed Japanese imported ball bearing and the variety of external designs will satisfy differing installation needs. The advantages of the YT series includes: the ability to function under low temperatures, alluring design, overloading capability, high efficiency, low temperature fluctuations as well as minimal noise. OPERATING CONDITIONS: 1:Elevation: Not exceeding 1000 meters 2:Air Humidity: <95% 3:Temperature: 40oc 4:Working mode: Continuous(S1) 5:Insulation grade: BF 6:Protection grade: IP54 IP44 7:Cooling method: ICO141 fan-cooling mode 8:Installation Method: IMB3,IMB5,B14 9:Connection: Y Start-connection for 3KW and below Delta-connection for 4KW or more