PowerMaster MG Operator for Sectional Doors, Rolling Service Doors & Grilles

The PowerMaster MG Industrial Duty Hoist Operator is designed for sectional doors with high lift or vertical lift, rolling service doors, and grilles. Built for demanding applications, it features a gearbox with bronze worm gear in an oil bath for smooth, long-lasting performance.

A continuous-duty, high starting torque motor provides reliable operation, protected from overload with current-sensing or thermal devices. The full-voltage magnetic reversing contactor is electrically and mechanically interlocked and housed in a NEMA 1 enclosure with integrated transformer for 24 VAC control circuitry. Terminal strips are provided for easy wiring of power and control devices.

Key Features

• Field-adjustable built-in functions
• Manual hoist chain with interlock for safe emergency operation
• High starting torque motor with full overload protection
• Auto-detect monitored photo beam for simplified installation
• Solid-state circuitry with diagnostic feedback LEDs
• Heavy-duty #50 roller chain and drive sprocket included
• On-board Open/Close/Stop buttons for servicing and adjustments
• Capable of right- or left-hand mounting in horizontal or vertical positions

Specifications

• Horsepower Range: 1 HP to 5 HP
• Motor Duty: Continuous
• Voltage Options: 115/230V single-phase, or 230/460V three-phase
• Limit Switches: Chain-driven rotary type, unaffected by manual operation
• Drive Chain: #50 or larger roller chain
• Enclosure: NEMA 1, integral with operator

Applications

• Sectional doors (high lift and vertical lift)
• Rolling service doors
• Grilles and heavy commercial overhead doors