Model RDB+
Specifications

UL Listed Standard Voltages

• 1/2HP, 1HP 115/230VAC single phase and 208-230/460VAC three phase
• 2HP 208-230/460VAC three phase

Non UL Listed Voltages Available

• 1/2HP, 1HP 208VAC single phase
• 1/2HP, 1HP and 2HP, 380, 415, 575 VAC three phase
• 50HZ applications

Standard Features

• Rotary limit switches with vernier adjustment - synchronized with the door.
• Drum type solenoid actuated brake.
• Primary reduction worm gear in oil bath, secondary chain and sprocket.
• Chain hoist for emergency door operation 

Standard Electrical Features

• Instant reversing continous duty motor with automatic thermal overload reset.
• Heavy duty reversing contactor – electrically and mechanically interlocked.
• 24-volt AC three button control standard. (115VAC control voltage option available)
• Prewired to accept:

• Constant or Momentary contact open and/or closed.
• External sensing device such as sensing edges or photocells.
• Single or three-button control stations or a combination of both.
• 3 wire radio receiver.

Options

• Timer Package.
  • Automatically closes door. Programmable for flexible door operation. (optional light package for door status)
• NEMA 4, 4X and 12 Modifications
• Explosion Proof Modification
• Totally Enclosed Non Ventilated Motor.(TENV)
• Adjustable Torque Limiter Clutch
• Fire Sentinel