48 Frame Condenser Fan Motor 1/3HP 460V 60Hz 1075RPM NEMA HVAC Replacement

Tips

A NEMA 48 frame motor is a fractional horsepower (FHP) motor, typically around 5.5 inches in diameter with a 1/2-inch shaft, often used in HVAC/R and pumps, and is distinguished by its thru-bolt spacing (3-5/8 inches for bracket mounts) and often uses suffixes like 'Y' or 'Z' for mounting variations (e.g., 48Y, 48Z), making them compact replacements for older motors.   

Key Dimensions & Characteristics

• Diameter: Approximately 5.5 inches.

• Shaft Diameter: Usually 1/2 inch.

• Shaft Height: About 3 inches (for rigid bases).

• Thru-Bolt Spacing (Bracket Mount): 3-5/8 inches.

• Common Horsepower: Often 1/2 HP or 3/4 HP.

• Speeds: Can be single-speed or multi-speed (e.g., 2-speed).

• Suffixes: 'Y' or 'Z' indicate variations like square flanges or specific mounting, common in pool pumps (48Y/56Y).

How to Identify & Measure

• Measure Thru-Bolts: For bracket-mounted motors, measure the distance between the thru-bolts; 3-5/8" indicates a 48 frame.

• Check Nameplate: Look for "48" or suffixes like "48Y," "48Z" on the motor's spec label.

• Measure Diameter: A motor body diameter of roughly 5.5 inches is a strong indicator.

Common Applications

• HVAC/R: Condenser fans, furnace blowers.

• Pool Pumps: Often interchangeable with 56 frame motors in specific configurations (48Y/56Y).