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Basic Info
The Blauberg BR-B280D-EC-F05 is a 280 mm DC backward centrifugal fan designed for efficient, controllable airflow in demanding ventilation and equipment-cooling systems.
| Model | BR-B280D-EC-F05 | Rated Voltage | 110 VDC |
|---|---|---|---|
| Rated Speed | 2650 RPM | Input Power | 490 W |
| Input Current | 4.46 A | Sound Level | 88 dB(A) |
| Dimensions | 281 × 281 × 173.7 mm | Operating Temperature | -25 to +60 °C |
Technical Description
This backward-curved centrifugal fan combines a high-efficiency EC motor with 0-10 VDC or PWM speed control. Its metal impeller rotates clockwise when viewed toward the rotor. Continuous-duty construction, ball bearings and IP44 protection support reliable industrial operation.
| Impeller Material | metal | Rotation | Clockwise, viewed toward rotor |
|---|---|---|---|
| Protection Class | IP44 | Insulation Class | Class F |
| Duty | S1 continuous | Bearing | Ball bearing |
| Control | 0-10 VDC or PWM speed control | Feedback | FG speed signal |
| Cable Length | 500 ±20 mm | Connection | 10-wire |
| Airflow | Approx. 3200 m³/h | Static Pressure | Approx. 1300 Pa |
Product Application
Suitable for compact air-moving, thermal-management and ventilation equipment where stable pressure and variable-speed control are required.
| 1 | Charging Column | 9 | Equipment Cooling Project |
| 2 | Kitchen Smoke Exhaust System | 10 | Ventilation Unit Project |
| 3 | FFU Project | 11 | AHU Project |
| 4 | Computer Room Cooling | 12 | Air Purifier Project |
| 5 | Rail Transit Air-Conditioning | 13 | Heat Exchanger Project |
| 6 | Electrical Appliances | 14 | Telecom Container Project |
| 7 | FanGrid Project | 15 | Data Center Cooling Project |
| 8 | Ventilation Equipment Project | 16 | Industrial Cooling System |
Air Performance
The performance curve shows a maximum airflow of approximately 3200 m³/h and a maximum static pressure of approximately 1300 Pa. Actual operating points depend on system resistance.
Overall Dimensions
The fan envelope is approximately 281 × 281 × 173.7 mm. Refer to the drawing for mounting-hole locations, inlet geometry, cable routing and dimensional tolerances.
Electrical Connection
Ten-wire connection: PE protective earth; U1 L; U2 N; U3 NC; U4 COM; U5 RSA; U6 RSB; U7 0-10 VDC/PWM control; U8 FG speed feedback; U9 +10 V; and U10 GND. Follow the supplied electrical diagram and verify the rated 110 VDC power source before energizing.
Download
BR-B280D-EC-F05-Technical-Specification.pdf
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