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The Model MJ5011S is a 1/2 HP, 115-volt, medium duty jackshaft commercial door operator (for vertical and high lift sectional doors) with floor level disconnect. Not to exceed 10 cycles per hour, maximum 75 cycles per day.

Part Number: MJ5011S

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  • Solid state or electromechanical control circuit
  • Constant pressure required to close if no entrapment devices are installed
  • Solenoid brake standard
  • All steel frame
  • V-Belt drive from motor to clutch shaft
  • Adjustable friction clutch
  • Floor level disconnect for manual door operation
  • Manual operation will not affect limit switch settings
  • 41B30 door sprocket and #41 drive chain supplied
  • Standard door speed is approximately 11 inches per second
  • Motor overload protection
  • Wired to accept reversing devices
  • Internally adjustable limit switches
  • 1/2 HP rigid base permanent split capacitor motor
  • 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
Warranty 2 yrs
Max. Duty Cycle 10 cycles per hour, 75 cycles per day
Max. Door Height 14 ft.