Description
Product Overview
The Fasco B47120 is a high‑efficiency centrifugal blower designed for demanding HVAC and material‑handling applications. Built around a robust aluminum wheel and a steel housing, the unit delivers a steady 180 CFM of airflow while maintaining thermal protection and long‑term durability. Three selectable speeds—1360 RPM, 1100 RPM, and 830 RPM—allow users to match airflow to specific load requirements, all powered by a standard 115 V, 1.95 A supply. The blower’s compact dimensions (13 × 12 × 5.5 in) and lightweight construction (8 lb) make it easy to install in tight spaces, while UL and CSA certifications provide confidence in safety and performance.
![[Product front view showing all components]](https://www.harborfinds.store/wp-content/uploads/2026/07/c645d2f228fd411896eab20906ee8f39.jpg)
Usage
This blower excels in a variety of environments. In commercial HVAC systems, it provides reliable ventilation for office buildings, schools, and retail spaces, ensuring consistent indoor air quality. Industrial users benefit from its ability to move air in drying ovens, dust collection units, and material‑handling conveyors where precise airflow control is essential. The three‑speed configuration makes it adaptable for low‑noise operation in office settings or high‑flow demand in manufacturing plants. Because the unit runs on standard 115 V power, it integrates seamlessly with existing electrical infrastructure, reducing installation time and cost.
Why Choose Us
Choosing the Fasco B47120 means selecting a product backed by decades of engineering expertise and a commitment to quality. The blower’s aluminum wheel reduces rotational inertia, delivering quick start‑up and responsive speed changes while minimizing wear. Its steel housing offers superior rigidity and protection against corrosion, extending service life even in harsh industrial environments. The unit is thermally protected, preventing overheating during continuous operation, and it carries UL and CSA recognitions for safety compliance. Additionally, Fasco provides a one‑year manufacturer warranty and responsive after‑sales support, ensuring that any issues are resolved promptly.
Key Features
- Three‑speed operation (1360/1100/830 RPM) lets you fine‑tune airflow for any application.
- Aluminum wheel reduces inertia for fast response and lower energy consumption.
- Steel housing provides rugged durability and corrosion resistance.
- Thermal protection safeguards the motor during extended run times.
- One‑year manufacturer warranty and dedicated technical support for peace of mind.
FAQ
What size duct can this blower accommodate?
The B47120 is designed for standard 6‑inch round ductwork, but it can be adapted to larger or rectangular ducts with appropriate adapters.
Is the blower compatible with variable frequency drives (VFDs)?
Yes, the blower can be paired with a VFD to provide precise speed control and energy savings, as long as the VFD is rated for 115 V, 1.95 A input.
How often should the blower be serviced?
For optimal performance, inspect the unit annually, clean the fan blades, and verify that the bearings are free of debris. Replace the bearing if unusual noise or vibration is detected.
Can this blower be used outdoors?
While the blower is rated for indoor use, it can operate in sheltered outdoor environments if protected from direct exposure to rain and dust.
What is the warranty coverage?
Fasco offers a one‑year limited warranty covering defects in materials and workmanship, along with access to technical support for installation and troubleshooting.






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