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Blauberg BD-B175B-EC-00 is a 175 mm DC backward curved centrifugal fan designed for 24 VDC operation. It uses a PA+GF impeller, clockwise rotation viewed toward the rotor, IP55 protection and 0-10 VDC/PWM speed control with FG feedback.
Basic Info
| Model No. | BD-B175B-EC-00 | Product Type | DC Backward Curved Centrifugal Fan |
| Nominal Voltage | 24 VDC | Voltage Range | 19-29 VDC |
| Nominal Speed | 4400 ±5% RPM | Maximum Input Power | 85 W |
| Maximum Input Current | 3.6 A | Sound Level | 72 dB(A) |
| Ambient Temperature | -25 to +60 °C | Fan Size | 175 × 175 × 68.5 mm |
| Protection Rating | IP55 | Insulation Class | Class B |
Technical Description
| Impeller Material | PA+GF | Number of Blades | 7 |
| Airflow Direction | All Around | Rotation | Clockwise, viewed toward rotor |
| Motor Bearing | Ball bearing | Operation Mode | S1 |
| Speed Control | 0-10 VDC / PWM | Signal Output | FG, 2 pulses per revolution |
| Motor Protection | Locked rotor, thermal, over/undervoltage, overcurrent and soft start | Cable Length | 500 ±20 mm |
| Installation Position | Any | Conformity | CCC, CE and RoHS |
Product Application
| 1 | Charging Column | 9 | Equipments Cooling Project |
| 2 | Kitchen smoke exhaust system | 10 | Ventilation Unit Project |
| 3 | FFU Project | 11 | AHU(Air Handing Unit)Project |
| 4 | Computer room cooling | 12 | Air Purifier Project |
| 5 | Air-conditioned fan for rail transit carriers | 13 | Heater Exchanger Project |
| 6 | Electrical appliances | 14 | Telecom Container Project |
| 7 | FanGrid Project | 15 | Data Center Cooling Project |
| 8 | Ventilation Equipments Project | 16 |
Air Performance
Curve range shown in the specification: airflow Q 0-700 m³/h; static pressure P 0-800 Pa.
Air performance is measured according to AMCA 210 / GB 1236, installation category A. Values are valid under the specified measuring conditions and may vary with installation; deviations from the standard configuration must be checked on the installed unit.
Overal Dimmensions
Fan size: 175 × 175 × 68.5 mm. The outline drawing shows a 68.5 ±1 mm axial depth, 500 ±20 mm cable length, an inlet ring accessory and M4 mounting with a maximum screw-in depth of 5 mm.
Electrical Connection
U1: positive power supply (+24 VDC); U2: GND; U3: 0-10 V/PWM speed-control input; U4: FG tachometer output, 2 pulses per revolution.
The Vfg supply and pull-up resistor are connected by the customer: Vfg = 3.3-30 VDC; R ≥ 1000 × Vfg Ω.
Download
BD-B175B-EC-00 Technical Specification
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