Three-phase A.C Induction Motor,Usually used for the winchses for the Lifeboat davit,Or Rescue Boat davit,liferaft davit,and also these motors are suitable for these short-time electric dragging of the deck equipments,such as winches,capstans and so on,It also can be power supply for the loading winches which doesn't work frequently。Power is 0.75-100KW,Voltage is 380V-440V,Insulation is F-H,Protection class is IP56.