- Solid state control circuit
- Constant pressure required to close if no entrapment devices are installed
- All steel frame
- Adjustable friction clutch
- 3/4" Shafting used throughout
- #65 Roller chain on 1/3 HP
- #41 Roller chain on 1/2, 3/4 HP
- Solenoid brake standard on 3/4 HP (optional on 1/3 & 1/2 HP)
- 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 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