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  • Liftmaster GT
Liftmaster GT

Liftmaster GT

  • 1.Dual Voltage Connections
  • 2.Adjustable Friction Clutch
  • 3.Maximum Run Timer reverses or stops door
  • 4.Two-year warranty
  • Description: Liftmaster Gearhead Trolley (GT) style commercial door operators employ lubricated gears and are optimal for heavy industrial, high-cycle applications.
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·  MyQ® Technology enables you to securely monitor and control your facility operator and lights with your smartphone, tablet or computer for greater peace of mind.

·  Alerts can be received as email or pop-up (push) notifications on a mobile device, ensuring the status of your commercial door.

·  MyQ Mobile App is a free download with no annual activation fee.

·  Requires 828LM MyQ Internet Gateway to connect to MyQ Smartphone App.


·  Dual Voltage Connections increase flexibility by enabling the installer to select the required voltage within phase, to meet job-site requirements.

·  Single-Phase: 115V and 230V, 3-Phase: 208V, 230V and 460V, 575V is a discrete model without field-selectable voltage.

·  Control Function Selector Dial enables easy selection and programming of (7) wiring types, from constant pressure to close, to specialized Timer-to-Close functionality to meet end-user needs.

·  Continuous-Duty High-Starting Torque Motor performs in demanding industrial overhead door applications.

·  Motor Removable without Affecting Limit Switch Settings saves time and money for maintenance.

·  Adjustable Friction Clutch helps to protect door and operator from damage should the door meet an obstruction.

·  Mid-Stop enables partial opening of door to a preprogrammed position for energy savings, time savings and convenience.

·  Maximum Run Timer reverses or stops door if closing time exceeds expected time-frame to limit damage to door and operator.

·  Delay-On-Reverse Circuit prevents abrupt reversal of door, reducing wear on the door and operator system.

·  3-Button Control Station with Maintenance Alert System (MAS) provides open/close/stop functions and notification when routine maintenance is required.

·  Continuous-duty high-starting torque motor with instant reverse and overload protection. Available in 1/2, 3/4, 1 and 1-1/2 HP; single- or three-phase. Capacitor start on single-phase.

·  Sealed roller bearings in gear reducer. Flange-mount industrial ball bearings on drive shaft.

·  NEMA 1 type electrical box, heavy-duty 11-gauge steel frame with durable powder coat finish, all reduction sprockets drilled and pinned to shafts.

·  Two-year warranty.

Safety and Security

·  UL 325 requires all commercial door operators to be either constant pressure to close or be equipped with a primary external monitored entrapment protection device.

·  Security+ 2.0 safeguards your facility – with every click, a new code is sent to the commercial door operator so the door opens only for you.

·  Timer-To-Close conveniently and confidently closes the commercial door automatically after a predetermined amount of time has elapsed for added security and peace of mind.

·  Emergency Disconnect disconnects the operator from the door for manual lifting in an emergency.

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