Us Motors 8905-US Fan Blower Motor 3/4 Hp 1075 Rpm 48Y

Product Description

The US MOTORS 8905-US is a single-phase, direct-drive fan and blower motor rated at 3/4 horsepower and 1075 rpm, designed for residential and light commercial HVAC air-handling applications. Operating on 208 to 230 volts at 4 amps and 60 Hz, this motor fits the 48Y frame standard and features three selectable speeds with reversible rotation, giving technicians flexibility during installation and commissioning. The open air-over enclosure is suited for inline airflow cooling, and the sleeve bearing construction provides quiet, reliable operation in continuous-duty service. Licensed HVAC technicians and sheet metal mechanics are the primary installers of this motor type.

This motor is appropriate for use in residential furnace indoor blower assemblies, evaporator coil air handlers, and fan coil units where a 48Y frame direct-drive motor is specified. The 1/2-inch diameter by 4-inch shaft accommodates standard blower wheel hubs, and the hub ring mounting style is common across a wide range of OEM blower housings. Three-speed operation allows static pressure and airflow to be matched to duct system requirements at startup. The 5.6-inch diameter by 10.4-inch body length should be verified against the equipment cabinet dimensions before installation.

Key Features

• 3/4 hp output at 1075 rpm for moderate-to-high airflow blower applications
• Three-speed operation with reversible rotation for flexible airflow configuration
• 48Y frame with hub ring mounting for broad OEM blower housing compatibility
• 1/2-inch diameter by 4-inch shaft fits standard blower wheel hub bores
• Open air-over enclosure suits direct-drive applications where airflow passes over the motor
• Continuous-duty rating with Class B insulation and 1.0 service factor

Compatibility

Designed as an OEM-style replacement for residential and light commercial direct-drive blower motors using the 48Y frame with hub ring mounting and a 1/2-inch shaft.

Installation Notes

Installation should be performed by a licensed HVAC technician. Disconnect and lock out all electrical power to the air handler or furnace before removing the existing motor or handling wiring connections. Confirm shaft length, hub bore size, and rotation direction before securing the blower wheel. Follow NEC low-voltage wiring guidelines and local codes when terminating speed-tap leads at the control board or speed selector.

Technical Specifications

• Voltage Rating: 208 to 230 volts
• Amperage Rating: 4 amps
• HP Rating: 3/4 hp
• Speed Rating: 1075 rpm
• Number of Speeds: 3
• Phase: 1-phase
• Frequency Rating: 60 Hz
• Number of Poles: 6
• Frame Size: 48Y
• Motor Enclosure Type: Open Air Over
• Shaft Size: 1/2 inch diameter x 4 inches long
• Dimensions: 5.6 inches diameter x 10.4 inches long
• Mounting Type: Hub Ring
• Drive Type: Direct
• Bearing Type: Sleeve
• Rotation Type: Reversible
• Insulation Class: B
• Service Factor: 1.0
• Duty Type: Continuous
• Temperature Rating: 40 degrees C
• Material: Rolled Steel

Standard Information

• Brand: US MOTORS
• Manufacturer Part Number: 8905-US