GH503L5-MC Hoist Gearhead w/ Brake Logic 5, 1/2HP, 208/230/460V, 3 Phase

Logic 5.0 gearhead hoist commercial door operators employ lubricated gears for heavy industrial, high-cycle applications. These operators include a floor-level chain hoist for easy manual operation during an emergency or power outage.

Connectivity

• MyQ® Technology enables you to securely monitor and control your facility door operator and lights from your smartphone, tablet, or computer for greater peace of mind.
• Alerts can be received as email or pop-up (push) notifications.

Performance

• Heavy-duty worm-gear-in-oil reducer delivers performance for heavy industrial, high-cycle applications.
• Floor-level chain hoist with electrical interlock provides easy disconnect and manual operation in an emergency.
• Control function selector dial allows easy selection and programming of seven wiring types—from constant pressure to close, to specialized Timer-to-Close functionality—to meet end user needs.
• Timer-to-Close conveniently and confidently closes the commercial door automatically after a predetermined time for added security and peace of mind.
• Mid-stop enables partial door opening to a preprogrammed position for energy savings, time savings, and convenience.
• Dual voltage connections increase flexibility by enabling the installer to select the required voltage within phase to meet job-site requirements. Within phases, voltage is selectable at installation with the placement of a connector.
• Continuous-duty high-starting torque motor with instant reverse and overload protection. Capacitor start with single phase, removable without affecting limit switches.
• Maximum run timer reverses or stops the door if closing time exceeds expected limits, reducing potential damage to door and operator.
• Delay-on-reverse circuit prevents abrupt reversal of door, minimizing wear on components.
• 3-Button Control Station with Maintenance Alert System (MAS).
• Drive reduction: 45:1 first stage using heavy-duty gears running in oil bath, cast-iron housing, and “all-climate” synthetic gear oil for improved low-temperature performance; #50 output sprocket chain.
• Bearings: sealed roller bearings in gear reducer.
• Brake: standard on all GH door operators.
• Construction: NEMA 1-rated electrical box, heavy-duty 11-gauge steel frame with durable powder-coat finish. All reduction sprockets are drilled and pinned to shafts.
• Door speed: 8–9 in. per second.
• Warranty: 2 years.

Safety

• Security+ 2.0™ radio receiver is standard on Logic 5.0 operators, virtually eliminating radio frequency interference.
• Accepts up to 90 one-button or 30 three-button remote controls, plus up to 30 wireless keypads or an unlimited number of DIP switch remote controls.
• LiftMaster® Commercial Door Operators comply with UL 325 standards.
• LiftMaster offers a variety of entrapment protection devices for every commercial application.
• Emergency disconnect allows manual lifting of the door in case of power loss or emergency.