YKK High Voltage Induction Motor Squirrel cage motor Protection:IP44, IP54, IP55 Cooling:IC611, IC616 air- ... motorYRYRKKYRKS/1StructureBox-type construction, made up of steel plates welded with each otherCompact struction2Cooling methodIC01 or (IC11, IC21, IC31) ... IC611 or IC616IC81WIC4113Natural ventilation, with top mounted protection coverWith top mounted air-air coolerWith top ...