Blower Motor 115V 273 CFM 1380/1045 RPM | 1TDT7 | NBK-20501

NBK-20501 – Blower Motor | 115V | 273 CFM | 1380/1045 RPM | Replaces Dayton 1TDT7, 4C566, and Fasco A455

The NBK-20501 Blower Motor is a high-quality replacement engineered for consistent airflow and reliable performance in HVAC systems and outdoor boiler applications. Built as a direct replacement for Dayton 1TDT7 and Fasco A455, this durable motor features cast aluminum end shields, a dynamically balanced forward-curve wheel, and an all-position mounting design for quiet, efficient operation and long service life.

Key Features:
• OEM-Compatible Fit – Directly replaces Dayton 1TDT7, 4C566, and Fasco A455
• Efficient Performance – Delivers 273 CFM at 1380/1045 RPM for heating, cooling, and ventilation systems
• Durable Design – Cast aluminum end shields ensure excellent heat dissipation and longevity
• Quiet Operation – Dynamically balanced to reduce vibration and noise under load
• Flexible Mounting – All-position installation with included discharge mounting flange

Specifications:
• SKU: 20501
• Alternate SKU: FN1TDT7
• Category: Blower / Air Handler / HVAC / Outdoor Boiler
• Voltage: 115V, 50/60Hz, Single Phase
• Operating Amps: 1.4A
• Full Load Amps: 2.17/1.61
• Motor RPM: 1380/1045
• Motor Type: PSC / Direct Drive
• CFM @ 0.000” SP: 273
• Mounting Position: All Position
• Motor Enclosure: Open
• Temperature Range: -20°F to 104°F
• Max Ambient & Inlet Temp: 104°F
• Wheel Type: Forward Curve
• Blower Outlet Shape: Rectangular
• Overall Dimensions: H 11-1/8" × W 9-1/16" × D 10-7/16"
• Includes: Discharge Mounting Flange
• Certifications: UL & C-UL Recognized (E47479), CSA Certified (LR12645)

Equivalent To:
Dayton: 1TDT7, 4C566
Fasco: 7008-6164, A455

Why Choose the NBK-20501?
The NBK-20501 is built for HVAC professionals and outdoor boiler users who demand dependable airflow, quiet operation, and exceptional durability. It provides a performance upgrade over older Dayton and Fasco models, delivering smoother airflow, reduced noise, and longer service life—ideal for heavy-duty heating and ventilation applications.

Shipping & Availability:
Special order from NBK. Please allow 1–2 business days for processing before shipment.