Ruck 6 Inch S-Prime EVO EC Moves 430 CFM on 72W
Seventy-two watts and a single amp, for 430 CFM. That combination is what an EC motor and a sound insulated casing achieve together, and this is the smallest fan in the range. The impeller tops out at 3,735 RPM. Ruck rates the motor IP54, the terminal box IP44 and the complete unit IPX4. It weighs 17 lbs and runs 27 inches end to end.
Choosing a Sound Insulated Inline Fan Over a Bare One
The case for a sound insulated fan is a room people actually spend time in. Bedrooms, home offices and anywhere sharing a wall are where the extra casing pays for itself. Paired with the MTP 21, or any 0-10V source, the fan holds a set point instead of cycling on and off. That keeps humidity steadier through the night. The honest cost is size and weight. This is a 27 inch, 17 lb unit serving a 6 inch duct, where a bare fan would be a third of that. Ruck publishes no dB figure to compare it against. Mounting hardware is included and the warranty runs three years.
Key Features
- 430 CFM: Mixed flow output for a 6 inch duct.
- Sound Insulated Casing: Galvanized steel lined to damp noise off the fan body.
- EC Motor: Draw falls with speed on a 0-10V input.
- Stepless 0-10V Control: Works with the MTP 21 and most climate controllers.
- Motor in the Hub: Kept out of the airstream, so airflow is not disrupted.
- 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 | 6 in |
| Airflow | 430 CFM |
| Power | 72 W |
| Max Current | 1.0 A |
| Impeller Speed | 3,735 RPM (max) |
| Motor Protection Rating | IP54 |
| Terminal Box Rating | IP44 |
| Complete Unit Rating | IPX4 |
| Weight | 17.0 lbs |
| Dimensions | 27.17 x 11.02 x 12.01 in |
| Operating Temperature | -22 to 104 °F |
| Voltage | 120V, 60 Hz |
| Motor | EC, one-phase |
| Speed Control | Stepless 0-10V (MTP 21 compatible) |
| Thermal Protection | TEC cut-out |
| Insulation Class | F |
| Casing | Sound insulated galvanized sheet steel |
| Impeller | Mixed flow, motor in the hub |
| Warranty | 3 years |
| Origin | Made in Germany |