FASCO D721 1/4 HP 115V Direct Drive Blower Motor
Direct-drive blower motor delivers 1/4 HP at 115 V with three-speed PSC operation and auto thermal protection
- Product typeMotors
- Three-speed control for tailored airflow
- 1/4 HP permanent split capacitor motor delivers 190 W output
- Auto thermal protection with Class B insulation for continuous duty
- Reversible CW/CCW rotation suits multiple installations
- 115 V single-phase design runs on standard household power
Motor purpose and fit
The FASCO D721 is a direct-drive blower motor rated at 1/4 hp for 115 V single-phase supply. It suits residential ceiling-fan installations that need a permanent-split-capacitor design with three-speed operation. Builders requiring a different voltage or a higher horsepower rating should look elsewhere.
Thermals noise and power
The motor draws between 2.6 A and 4.8 A depending on the selected speed and delivers 190 W output at 1075 RPM. Auto thermal protection and Class B insulation allow continuous duty in ambient temperatures up to 40 degrees Celsius. The open air-over enclosure relies on the fan airflow for cooling, so mounted noise will follow the fan design.
Build integration
A 48 frame size and reversible CW/CCW rotation simplify mounting in standard ceiling-fan housings. The motor operates at 60 Hz and is not usable at 200 V or 208 V, so the circuit must supply 115 V. No capacitor is mentioned in the data, so verify whether the existing fan kit includes one or source a compatible run capacitor separately.
How it compares
Measured against everything we stock in Indoor & Outdoor Ceiling Fans, at today’s prices. Recalculated every night.
- Price $90.99
- Cheaper than about 55% of the 444 comparable items (median $99.99).
Specifications
| Product | |
|---|---|
| Brand name | FASCO |
| Product type | Motors |
Questions about this item
How is the 48-frame motor mounted and which wiring step is most often missed?
The motor uses a standard 48-frame mount with open air-over enclosure. The step most often missed is connecting the permanent split capacitor required for single-phase operation.
What maintenance will the auto thermal protection and Class B insulation require over time?
Keep the open air-over vents clear of dust so the auto thermal protection does not trip. Class B insulation is rated for 40 °C ambient; no lubrication is needed on the direct-drive shaft.
At what point does the 190 W output limit appear during continuous duty?
The 190 W output is the continuous maximum at 1075 RPM. Sustained loads above this level will cause the auto thermal protection to cycle the motor off.
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