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The Blauberg BN-B175B-EC-00 is a 175 mm high-voltage DC backward centrifugal fan driven by an efficient external-rotor EC motor. Its 310 VDC supply, strong pressure capability and adjustable speed input suit demanding ventilation and equipment-cooling systems.
Basic Info
| Model | BN-B175B-EC-00 | Impeller Diameter | 175 mm |
| Rated Voltage | 310 VDC | Rated Speed | 4000 RPM |
| Rated Power | 85 W | Rated Current | 0.3 A |
| Sound Pressure Level | 72 dB(A) | Operating Temperature | -25°C to +60°C |
| Dimensions | 175 × 175 × 68.5 mm | Ingress Protection | IP55 |
| Insulation Class | Class B | Duty Type | S1 |
Technical Description
The fan uses a plastic backward-curved impeller and rotates clockwise when viewed toward the rotor. Plastic spraying, ball bearings, IP55 protection, Class B insulation and S1 continuous duty support dependable operation from -25°C to +60°C.
Built-in locked-rotor, thermal and high/low-voltage protection improve reliability. The fan includes 500 ±20 mm leads, operates at 5–90% RH, and complies with CCC and RoHS requirements.
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
Performance range: airflow 0–800 m³/h and static pressure 0–700 Pa. Test conditions follow AMCA 210 / GB 1236, category A, with free inlet and free outlet.
Overal Dimmensions
Electrical Connection
Connect the 310 VDC supply and protective earth as shown. Use U4 for 0–10 V or PWM speed control; U5 provides the FG tachometer output.
| Terminal | Connection | Signal | Description |
| U1 | +310 VDC | Power | Positive supply |
| U2 | GND | Power | Ground |
| PE | Protective earth | Safety | Protective grounding |
| U4 | 0–10 V / PWM | Control | Speed control input |
| U5 | FG | Output | Tachometer signal |
Download
BN-B175B-EC-00 Technical Specification
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