- Usually Ships 4 to 7 Business Days
PowerMaster
PowerMaster Model J Commercial Door Operator w/ High Starting Torque Motor
- SKU:
- POWERMASTER-MODEL-J
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PowerMaster
PowerMaster Model J Commercial Door Operator w/ High Starting Torque Motor
- Usually Ships 4 to 7 Business Days
- brand-name:
- PowerMaster
- brand-url:
- /brand/powermaster/
- availability:
- available
Product Description
The PowerMaster Model “J” Industrial Duty Jackshaft Operator is a heavy-duty commercial door operator built for grilles, standard lift sectional doors, and rolling service doors. Designed for continuous-duty performance, it combines a high-torque motor, robust reduction system, and advanced control circuitry to deliver smooth, reliable operation in demanding environments. With solid-state controls, field-adjustable settings, and a floor-level manual disconnect, the Model “J” is engineered for professional installers who require durability, precision, and ease of service in industrial applications.
Specifications
- Applications: Grilles, standard lift sectional doors, and rolling service doors
- Motor: Continuous-duty, high starting torque, with overload protection
- Drive: Heavy-duty V-belt primary reduction and chain-and-sprocket secondary reduction
- Reduction shaft: Minimum 1" diameter, supported by bronze oilite bearings
- Self-locking reduction stages prevent back-driving under load
- Adjustable torque-limiting clutch included
- Control voltage transformer: 24 VAC output
- Motor controller: Full-voltage magnetic reversing contactor, electrically and mechanically interlocked
- Enclosure: NEMA 1 rated, integral to the operator
- Control circuit: Open/close/stop wiring with immediate reverse on single-phase models
- Limit switches: Chain-driven rotary type for precise open/close limits
- Manual operation: Floor-level disconnect chain with electrical interlock safety
- Final drive: #50 or larger roller chain
- Horsepower options: 1/2 HP and 3/4 HP
- Voltage options: 115/230V single-phase or 208/230/460V three-phase
Features
- Solid-state circuitry with LED feedback indicators
- High starting torque motor with full overload protection
- Auto-detect monitored photo beam simplifies installation
- Integrated open/close/stop buttons for service and adjustment
- Field-adjustable built-in functions for custom operation
- Floor-level disconnect with electrical interlock for safe manual operation
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