The LiftMaster 20-3075C-4X is a genuine replacement motor engineered for LiftMaster commercial and industrial door operators. Rated at 3/4 HP and designed for 230/460V three-phase power, it delivers dependable performance for applications such as sectional doors, rolling steel doors, and other heavy-duty operator systems. The CF designation indicates a C-face mounting configuration for direct coupling to compatible gear reducers, while EP identifies an explosion-proof enclosure suitable for use in properly rated environments when specified by the door operator system.
This replacement part is intended for LiftMaster operators that specifically call for the 20-3075C-4X motor and a 3/4 HP, 3-phase, 230/460V C-face, explosion-proof design. Installation should be performed by a qualified technician or electrician, following the motor nameplate wiring diagram and the operator’s service manual to set the correct supply voltage, verify proper rotation, secure the C-face mount, and adjust overload protection in the control panel. Use only where an explosion-proof motor is required and ensure all components in the operator assembly meet the same hazardous location rating. Ideal search terms include LiftMaster replacement motor 20-3075C-4X, commercial garage door opener motor, 3/4 HP 3-phase motor 230/460V, C-face explosion-proof motor, and industrial door operator motor.