... -saving, high starting torque, low noise, ect. FEATURES:Y series motors are totally enclosed and fan cooled (TEFC), three ... in conformity with the relevant requirements of IEC standards.Y series motors have outstanding performance, such as high efficiency ... S1)Insulation class: Class BProtection type: Ip44Cooling type: Ic411Connection: Y Start-connection for 3KW and belowDelta-connection for 4KW or ...