GT Series

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The GT SERIES - Extra heavy-duty gear reduced drawbar commercial door operator (for standard lift sectional doors) series, available in 1/2, 3/4, and 1 horsepower, various supply voltages and phases. Not to exceed 35 cycles per hour, 150+ cycles per day.

Part Number: GT Series

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  • Solid state control circuit
  • Constant pressure required to close if no entrapment devices are installed
  • All steel frame
  • Oil bath gear reduction unit
  • Quick disconnect door arm for manual door operation
  • #41 roller chain drive
  • Standard door speed approximately 11 inches per second
  • Adjustable torque converter
  • Solenoid brake standard
  • Motor overload protection
  • Wired to accept reversing devices
  • Internally adjustable limit switches
  • High starting torque, continuous duty motor
  • TEFC Motor standard on single phase 1 HP and over, and all 3 phase operators
  • 24-Volt control circuit with OPEN, CLOSE and STOP 3-button station
  • OPEN button (and single button) will automatically override down travel and reverse door to the full open position
  • External terminals for single button (residential type) radio control
Rail Options Up to 14' 6" high doors
Rail Options Up to 16' 6" high doors
Rail Options Up to 18' 6" high doors
Rail Options Up to 20' 6" high doors
Rail Options Up to 22' 6" high doors
Warranty 2 yrs
Max. Duty Cycle 35 cycles per hour, 150+ cycles per day
Max. Door Height 22.5 ft.
Model HP Voltage & Phase Max Gate Length Max Gate Weight
GT5011 1/2 115V 1P ft lbs
GT5021 1/2 230V 1P ft lbs
GT5023 1/2 230V 3P ft lbs
GT5043 1/2 460V 3P ft lbs
GT7511 3/4 115V 1P ft lbs
GT7521 3/4 230V 1P ft lbs
GT7523 3/4 230V 3P ft lbs
GT7543 3/4 460V 3P ft lbs
GT10011 1 115V 1P ft lbs
GT10021 1 230V 1P ft lbs
GT10023 1 230V 3P ft lbs
GT10043 1 460V 3P ft lbs
Model HP Voltage & Phase Drive Type Manual Disconnect Max Door Height
GT5011 1/2 115V 1P Drawbar Quick release door arm 22.5 ft
GT5021 1/2 230V 1P Drawbar Quick release door arm 22.5 ft
GT5023 1/2 230V 3P Drawbar Quick release door arm 22.5 ft
GT5043 1/2 460V 3P Drawbar Quick release door arm 22.5 ft
GT7511 3/4 115V 1P Drawbar Quick release door arm 22.5 ft
GT7521 3/4 230V 1P Drawbar Quick release door arm 22.5 ft
GT7523 3/4 230V 3P Drawbar Quick release door arm 22.5 ft
GT7543 3/4 460V 3P Drawbar Quick release door arm 22.5 ft
GT10011 1 115V 1P Drawbar Quick release door arm 22.5 ft
GT10021 1 230V 1P Drawbar Quick release door arm 22.5 ft
GT10023 1 230V 3P Drawbar Quick release door arm 22.5 ft
GT10043 1 460V 3P Drawbar Quick release door arm 22.5 ft