6503VUI, 0.33Hp, 1050RPM, 120/240V, 1Ph, 60/50Hz, Open Air Over (OAO), Frame 48

This variable‑speed electronically commutated fan and blower motor is designed for HVAC applications requiring precise airflow control. It delivers 1/3 horsepower at dual voltage and frequency, in a compact 48‑frame open air over enclosure.

KEY FEATURES

• Model: 6503VUI

• Product Type: Fan and Blower Motor

• Horsepower: 0.33 Hp (0.25 kW)

• Voltage: 120/240 V @ 60 Hz / 120/240 V @ 50 Hz

• Speed: 1050 RPM @ 60 Hz / 1050 RPM @ 50 Hz

• Frame: 48

• Enclosure: Open Air Over (OAO)

• Service Factor: 1

• Current: 5.0/2.8 A

• Duty: Continuous Air Over

• Insulation Class: B

• Thermal Protection: No Protection

• Mounting: Round (Belly Band)

• Shaft: Flat, 0.500 in diameter, 5.00 in extension

• Bearings: Ball

• Frame Material: Rolled Steel

• Rotation: Counterclockwise/Clockwise (dual‑direction)

• Number of Speeds: 1

• Ambient Rating: 40 °C

• Electrical Type: Electronically Commutated Motor (ECM)

• Poles: 12

• Certifications: A2L Certified

The motor’s dual‑voltage and dual‑frequency capability, combined with its variable‑speed ECM design, offers flexible integration into HVAC systems with compact dimensions and reliable airflow performance.