Liftmaster CDO Trolley 1/2 HP -head only

The Liftmaster CDO Trolley 1/2 HP head-only operator (SKU T501L5-MC) is a standard-duty commercial trolley operator built for standard-lift sectional overhead doors in standard duty-cycle commercial applications. Powered by a 1/2 HP motor, it delivers reliable operation with an operator speed of 11-12 inches per second and is rated for up to 25 cycles per hour and up to 90 cycles per day.

This operator runs on the solid-state Logic 5.0 circuit board and includes a range of programmable controls, including a timer-to-close adjustable up to 68 minutes, a programmable mid-stop, and mechanical limit settings. It features built-in Security+ 2.0 radio reception and myQ Technology, enabling remote monitoring and control of the commercial door from a smartphone, tablet, or computer (LiftMaster Internet Gateway and myQ app required).

Constructed with a heavy-duty 11-gauge steel frame and durable powder coat finish, it is designed for dependable long-term performance. An emergency release rope and handle allow manual operation, with auto-reconnect when tension is removed. As a commercial door operator, it must use constant pressure to close or be equipped with a LiftMaster monitored entrapment protection device to meet UL 325 requirements.

• 1/2 HP motor with operator speed of 11-12 inches per second
• Solid-state Logic 5.0 circuit board with control function selector dial and tactile buttons
• Programmable timer-to-close (1- and 15-second increments up to 68 minutes) and programmable mid-stop
• Security+ 2.0 radio receiver and myQ Technology for remote monitoring and control
• Emergency release rope and handle with auto-reconnect; mechanical limit settings and adjustable friction clutch
• Heavy-duty 11-gauge steel frame with powder coat finish and NEMA 1 type electrical box
• 2-year warranty; maximum door height 24 ft and width 22 ft standard, up to 640 sq. ft.