A direct-replacement blower motor engineered to restore airflow in furnaces, ventilation units, and HVAC equipment. The 1TDP8 steps in where the original Dayton 4C015 left off -- same electrical specs, same compact footprint, ball-bearing construction for long service life, and automatic overload protection to guard the motor against thermal runaway.
The Dayton 1TDP8 is a factory-spec replacement blower motor designed to swap directly into applications previously served by Dayton model 4C015. It is also sold under the NBK Parts number 20498. If your furnace, air handler, or ventilation blower is running slow, overheating, or has stopped turning, this motor restores full airflow without custom fabrication or wiring changes.
At 184 CFM through a 2-5/8 in inlet, the 1TDP8 moves a meaningful volume of air for its compact 8-3/8 in x 5-3/8 in x 5-3/4 in envelope. The dual-speed design (2750 RPM at 60 Hz, 3150 RPM at 50 Hz) means it operates correctly on both North American 60 Hz and international 50 Hz power systems -- useful for imported equipment or specialized applications.
Precision ball bearings replace the sleeve bearings found in lower-cost motors. Ball bearings handle higher temperatures, last longer under continuous duty, and tolerate both horizontal and vertical shaft orientations.
An integrated thermal overload protector cuts power if the motor overheats and automatically resets once it cools. This protects both the motor and surrounding equipment from damage caused by blocked airflow or stalled conditions.
Rated for both 50 Hz and 60 Hz service. Speed adjusts accordingly -- 3150 RPM at 50 Hz, 2750 RPM at 60 Hz -- so the motor works correctly across different power environments without rewiring.
Overall envelope of 8-3/8 in wide x 5-3/8 in deep x 5-3/4 in tall with a 4-1/16 in x 3-9/16 in flange and an 8 mm shaft diameter. Designed to fit the same mounting cutout as the 4C015 it replaces.