The Marathon 3/4 HP Boat Lift Motor is a single-phase, dual voltage motor. The Marathon boat lift motor comes with a totally enclosed, non-vented housing (TENV). Also, the Marathon boat lift motor is a standard NEMA 56 frame that will mount to any flat-plate hoist. Comes pre-wired with a lock-on switch and GFCI for quick plug and go installation! We also throw in the 2-inch drive pulley to make it that much easier to get your lift back up and running smoothly!