The US Motors 5464H is a heavy-duty permanent split capacitor (PSC) condenser fan motor engineered for continuous-duty operation in commercial and residential HVAC condenser units. With reversible rotation, a TEAO enclosure, and dual-speed capability, this motor delivers reliable airflow over condensing coils in demanding outdoor environments. Also cataloged as NBK Parts 20588.
When a condenser fan motor fails, your entire HVAC system stops rejecting heat efficiently. The US Motors 5464H is a direct-replacement PSC motor designed to restore full system performance with minimal downtime. Its 5.6-inch frame diameter and horizontal stud mount fit a wide range of OEM condenser cabinets, and reversible rotation means a single motor covers both clockwise and counterclockwise fan configurations.
At 825 RPM and up to 1/3 HP, this motor moves substantial air across the condensing coil without generating excessive noise. Class B insulation and automatic thermal overload protection ensure long service life even in high-ambient installations where temperatures approach 140 deg F (60 deg C).
Field-selectable CW or CCW rotation covers more OEM applications with a single stock motor, reducing parts inventory needs.
Built-in thermal overload protection shuts the motor down before heat damage occurs, then automatically resets when cooled.
Totally Enclosed Air Over construction keeps contaminants out of the motor windings while relying on condenser airflow for cooling -- ideal for outdoor condenser applications.
Precision ball bearings on both ends provide longer bearing life and quieter operation versus sleeve-bearing alternatives in high-cycle HVAC duty.
The 5464H is rated for continuous-duty operation -- it is designed to run as long as your HVAC system calls for cooling, not just intermittent cycles. This makes it appropriate for commercial rooftop units and residential split systems alike.
With two speeds available, this motor supports multi-stage or staged-capacity condenser fans. Wiring for the second speed is accessible via the 36-inch lead set included with the motor. Confirm your control wiring matches a 2-speed PSC configuration before installation.
The 5464H uses a horizontal stud mounting configuration. Verify your condenser fan deck accepts a stud-mount motor before ordering. Stud spacing and length should be confirmed against your OEM documentation or measured on the failed motor being replaced.
As a PSC (Permanent Split Capacitor) motor, the 5464H requires a run capacitor to operate. The correct capacitor microfarad (MFD) and voltage rating must match the motor nameplate. A replacement capacitor is NOT included -- verify your existing capacitor is in good condition or source the correct replacement separately.