
Ruck 10 Inch S-Prime: 1,035 CFM on 221 Watts
The S in S-Prime is for sound insulated, and that is where the money in this fan has gone. A mixed flow impeller sits inside a galvanized steel shell lined with acoustic material, moving 1,035 CFM on 221W and 1.9A at 120V. A three-speed switch is built into the casing, so trimming output needs no separate controller. It is UL and CSA approved, weighs 22 lbs and runs about 27 inches long.
Fitting a 3-Speed Inline Duct Fan Near Living Space
A fan like this makes sense in a studio, a home office, or any room sharing a wall with somewhere people sleep. The insulation damps the noise coming off the casing rather than the noise travelling down the duct. A silencer on the outlet still earns its keep in a quiet space. The published figure is 32 sones, which is real machinery rather than background hum. It is heavy enough to want a proper hanger of its own. Ruck builds it in Germany and covers it for three years.
Key Features
- 1,035 CFM: Mixed flow output for a 10 inch duct.
- Sound Insulated Casing: Galvanized steel lined to damp noise off the fan body.
- One-Phase AC Motor: Simple, serviceable, and mains-powered.
- Integrated Switch: Mounted on the casing, no extra wiring needed.
- Mixed Flow Impeller: Holds pressure where an axial booster would stall.
- Made in Germany: Built and tested at the Ruck factory.
- 3-Year Warranty: Covered for three years, German built.
Technical Specifications
| Specification | Value |
|---|---|
| Duct Size | 10 in |
| Airflow | 1,035 CFM |
| Power | 221 W |
| Current | 1.9 A |
| Speed Control | Integrated 3-speed switch |
| Noise | 32 sones |
| Weight | 22 lbs |
| Dimensions | 12.68 x 12.68 x 27.05 in |
| Operating Temperature | -13 to 104 °F |
| Certification | UL and CSA |
| Voltage | 120V, 60 Hz |
| Motor | One-phase AC |
| Casing | Sound insulated galvanized sheet steel |
| Impeller | Mixed flow |
| Warranty | 3 years |
| Origin | Made in Germany |