LiftMaster MJ5011U-1IN-SECTIONAL Medium-Duty Jackshaft Operator – 1/2 HP, 115/230V – Built-in Receiver – for Sectional Doors – 1" Sprocket Included

The MJ5011U-1IN-SECTIONAL Jackshaft Operator is a robust medium-duty door operator ideal for high-lift or vertical-lift sectional doors and small rolling doors or grilles. Powered by a 1/2 HP, 115/230V single-phase motor, this unit provides reliable performance with built-in overload protection.

It comes equipped with a 1" sprocket for easy compatibility with sectional doors, along with an adjustable friction clutch and heavy-duty solenoid brake to ensure safe operation.

The integrated Medium-Duty Logic control board features a built-in 315 MHz receiver, programmable timer-to-close (TTC), and UL325-2010 compliant monitored entrapment protection capability. Its versatile design supports surface-mounted installations and delivers smooth, efficient operation in commercial environments.

Technical Details