Us Motors 49a4301 Blower Motor 2 Hp 1425 Rpm 3-phase

Product Description

The US MOTORS 49a4301 is a 2 HP, three-phase blower motor built for commercial and industrial air-handling applications. Running at 1425 RPM on a 50 Hz supply at 230/400 volts, it draws 6.0 amps at 230V and 3.0 amps at 400V. The motor features a 56Hz frame with a rigid base mount, ball bearings, and an open drip-proof body for reliable operation in ventilated equipment rooms. The reversible shaft rotation adds installation flexibility. Licensed HVAC and mechanical contractors install this motor as a direct drive or belt drive blower replacement in rooftop units, air handlers, and commercial ventilation systems.

The 49a4301 is suited for three-phase commercial HVAC equipment operating on 50 Hz power, including international and export applications where 230/400V three-phase supply is standard. Its rigid base mounting makes it a fit for air handlers, blower assemblies, and fan coil units requiring a frame-mount motor. The open drip-proof enclosure allows adequate airflow for motor cooling in equipment rooms with controlled environments. Reversible rotation lets the installer orient shaft direction to match the existing blower assembly without sourcing a separate CW or CCW variant.

Key Features

• 2 HP output at 1425 RPM on 50 Hz three-phase power
• Dual voltage rated: 230V at 6.0 amps or 400V at 3.0 amps
• Rigid base mount on a 56Hz frame for secure equipment installation
• Ball bearing construction for extended service life under continuous blower duty
• Open drip-proof body for ventilated indoor mechanical environments
• Reversible shaft rotation eliminates the need for separate CW/CCW sourcing
• 7/8 inch keyed shaft, 2.25 inches long, for positive drive coupling

Compatibility

Designed as an OEM-style replacement for three-phase, 50 Hz blower motors in commercial air handlers, rooftop units, and ventilation systems requiring a 2 HP rigid-base motor in a 56Hz frame.

Installation Notes

Installation should be performed by a licensed HVAC technician or journeyman electrician. Disconnect and lock out all power to the unit before removing the existing motor. Verify supply voltage and phase configuration match the motor nameplate before energizing. Confirm shaft keyway alignment and mounting bolt torque per the equipment manufacturer's service manual before returning the unit to service.

Technical Specifications

• Horsepower: 2 HP
• Voltage: 230/400 volts
• Phase: 3-Phase
• Frequency: 50 Hz
• Amperage: 6.0 amps (230V) / 3.0 amps (400V)
• Speed: 1425 RPM, 1-Speed
• Frame: 56Hz
• Mounting: Rigid Base
• Bearing Type: Ball
• Enclosure: Open Drip-Proof
• Rotation: Reversible
• Shaft Diameter: 7/8 inches (keyed)
• Shaft Key Length: 2.25 inches
• Motor Diameter: 6.5 inches
• Motor Length Less Shaft: 10.25 inches
• Overall Length: 12.5 inches
• Weight: 36.70 pounds
• Country of Origin: Mexico

Standard Information

• Brand: US MOTORS
• Manufacturer Part Number: 49a4301