Wagner Motors WG840584 Furnace Blower Motor 1/4 Hp

Product Description

The WAGNER MOTORS WG840584 is a direct drive furnace blower motor rated at 1/4 HP and designed for residential and light commercial HVAC forced-air systems. It operates on 208 to 230 volts AC at 60 Hz, draws 2 amps full-load, and runs at 1075 RPM across three selectable speeds. The permanent split capacitor (PSC) design fits a 48 NEMA frame and accepts shaft-up, shaft-down, or belly band mounting orientations, giving technicians flexibility when working in tight equipment compartments. Class B insulation and ball bearings support sustained heat exposure and contribute to long service life. The gray-green powder coat finish provides corrosion resistance in typical air handler environments. Licensed HVAC technicians are the primary installers.

This motor is suited for direct drive blower applications in residential gas and electric forced-air furnaces and air handlers. The reversible rotation makes it adaptable to a range of blower wheel configurations without sourcing a separate motor. The three-speed winding allows the installer to match airflow delivery to the system's heating and cooling requirements. The required run capacitor is a 370-volt AC type; the correct microfarad rating is noted on the motor carton for reference at the job site.

Key Features

• 1/4 HP PSC motor with 3-speed winding for adjustable airflow output
• Reversible rotation accommodates varied blower wheel orientations
• Shaft-up, shaft-down, and belly band mounting for flexible installation
• Ball bearings for improved heat endurance and extended motor life
• Class B insulation rated for sustained thermal performance
• Extended mounting bolts ease installation in confined equipment spaces
• Insulated in-line run capacitor disconnects for safer wiring connections

Compatibility

Designed as an OEM-style direct drive replacement motor for residential and light commercial forced-air furnace blower applications using a 48 NEMA frame motor.

Installation Notes

Installation should be performed by a licensed HVAC technician. Disconnect and lock out power to the furnace or air handler before removing the existing motor or making any wiring connections. Confirm the replacement run capacitor microfarad rating before energizing the unit, and refer to the wiring diagram on the motor label and carton for correct speed-tap connections. Work must comply with applicable local mechanical and electrical codes.

Technical Specifications

• Power Rating: 1/4 HP
• Voltage Rating: 208 to 230 volts AC
• Frequency Rating: 60 Hz
• Full Load Amps: 2 amps
• Speed Rating: 1075 RPM
• Number of Speeds: 3
• NEMA Frame Size: 48
• Mounting: Shaft Up / Shaft Down / Belly Band
• Reversible: Yes
• Insulation Class: B
• Motor Type: Permanent Split Capacitor (PSC)
• Height: 7.0 inches
• Length: 6.75 inches
• Width: 11.0 inches
• Weight: 12.1 pounds
• Application: HVAC Direct Drive Furnace Blower

Standard Information

• Brand: WAGNER MOTORS
• Manufacturer Part Number: WG840584