MGH SERIES: Special Service Gearhead Jackshaft Commercial Door Operator

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Fraba Safety Devices Brochure

The MGH SERIES – Special service gearhead jackshaft commercial door operator (for vertical or high lift sectional doors and rolling steel curtain doors) series, manual release, available in 1/3 and 1/2 horsepower, various supply voltages and phases. Not to exceed 25 cycles per hour, 100 cycles per day.

Ratings

  • Maximum duty cycle: 25 cycles per hour, 100 cycles per day
  • Maximum door height: 18 feet

Features

  • Solid state control circuit 
  • Constant pressure required to close if no entrapment devices are installed 
  • Oil bath worm gear reduction unit
  • Self locking gearing
  • Adjustable torque limiter
  • Release for manual operation
  • Motor overload protection
  • Wired to accept reversing devices
  • Internally adjustable limit switches
  • High starting torque, continuous duty motor
  • 24-Volt control circuit with OPEN, CLOSE and STOP push 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
  • TEFC Motor standard on all 3 phase operators

Factory Options

  • Linear Photo Beam Kit: HAE00056
  • MVP-MR 3-channel open-close-stop modular receiver installed: P/N 2650-159

Warranty

  • 2 years
MGH SERIES Models
MODEL HP VOLTAGE &
PHASE
TYPE
DRIVE
MANUAL DISCONNECT MAXIMUM
DOOR
HEIGHT
MGH3311
1/3
115V 1P
Jackshaft
Release for manual operation
18 FT.
MGH3321
230V 1P
MGH3323
230V 3P
MGH3343
460V 3P
MGH5011
1/2
115V 1P
Jackshaft
Release for manual operation
18 FT.
MGH5021
230V 1P
MGH5023
230V 3P
MGH5043
460V 3P

Installation Manual