Model JST+
Specifications

UL Listed Standard Voltages

• 1/3 HP 115VAC single phase
• 1/2HP & 3/4HP, 115/230VAC, single phase and 208-230/460VAC three-phase

Non UL Listed Voltages Available

• 3/4HP, 208VAC single phase
• 1/2HP, 575VAC three phase
• 1/2HP and 3/4HP, 380 or 415VAC three phase
• 50HZ applications

Standard Features

• Rotary limit switches with vernier adjustment - synchronized with the door.
• Adjustable disc clutch.
• Ball bearing power train.
• Drum type solenoid actuated brake. (Optional on Drawbar units)
• Quick disconnect door arm for emergency operation. (Drawbar Units)
• Primary reduction 6 rib poly J-belt and pulley, secondary chain and sprocket.
• Average door speed of 11 inches per second. (Drawbar Units)
• Angle reinforced double track boom for doors over 10’ high. (Drawbar Units)
• All chain carriage drive. (Drawbar Units)
• Wood runners on trolley. (Drawbar Units)
• Versatile direct coupling to hollow or solid door shaft coupling kit. (Jackshaft Units)
• Mounting brackets for either 3 ¾” , 5” or 6” shaft centerline distance. (Jackshaft Units)
• Chain hoist for emergency door operation. (Jackshaft Units)

Standard Electrical Features

• Instant reversing continuous 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:

• Momentary or Constant contact models
• 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)
• Totally Enclosed Non Ventilated Motor. (TENV)
• Car Wash Modification
• NEMA 4, 4X and 12 Modifications
• Auxiliary Limit Switch