Y-H series motors are totally enclosed fan cooled three phase asynchronous induction motor for marine use. The motors have good features of low noise, slight vibration, high locked-rotor torque and reliable operation. They can be used to drive various machines on ships, including pumps, ventilators, separators, hydraulic machines and other machines. The motors can also be used in hazardous areas with dewdrops, salt-fog, oil mist, fungi, vibration and shock.