Blowers & Centrifugal Fans
Double Inlet Backward Curved Impeller — 250 Series
Backward curved impeller design delivering high static pressure with lower noise levels, ideal for demanding industrial applications.

Catalogue Specifications
Models and Technical Data
Catalogue values are shown in their published units. Final selection and operating-point suitability should be confirmed with SEM engineering.
| Type | I/P Supply | Amps (A) | Watts (W) | RPM | Airflow CMH | Airflow CFM | Static PR (mm-wc) | dBA | CAP µf | Amb. Temp °C | Weight Kg |
|---|---|---|---|---|---|---|---|---|---|---|---|
| SDB 250 BC S2 | 230V, 1Ø, 50Hz | 2 | 450 | 2750 | 1600 | 941 | 85 | 85 | 12.5 | 60 | 15 |
| SDB 250 BC T2 | 415V, 3Ø, 50Hz | 0.75 | 400 | 2750 | 1600 | 941 | 85 | 85 | — | 60 | 15 |
Tolerance ±5% on Specified values
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