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Blauberg BE-B133B-EC-03 is a 133 mm DC backward centrifugal fan for 48 VDC operation. It combines an external-rotor DC motor, a plastic impeller, clockwise rotation viewed toward the rotor, IP55 protection, 0-10 V/PWM speed control and FG speed feedback.
Basic Info
| Model No. | BE-B133B-EC-03 | Product Type | DC Backward Centrifugal Fan |
| Rated Voltage | 48 VDC | Rated Speed | 3800 RPM |
| Maximum Input Power | 30 W | Maximum Input Current | 0.63 A |
| Sound Level | 63 dBA | Ambient Temperature | -25 to +60 °C |
| Dimensions | 133 × 133 × 63 mm | Protection Rating | IP55 |
| Insulation Class | Class B | Operation Mode | S1 |
Technical Description
| Impeller Material | Plastic | Direction of Rotation | Clockwise, seen on rotor |
| Rotor Surface | Plastic spraying | Bearing Type | Ball bearing |
| Motor Protection | Locked rotor, thermal, under/overvoltage, overcurrent and soft start | Cable Length | 500 ±20 mm |
| RoHS | All materials comply with RoHS | Humidity | 5% to 90% RH |
| Motor Type | External rotor DC motor | Impeller Deviation | Axial ≤0.5 mm; radial ≤0.5 mm |
| Speed Control | 0-10 V / PWM | Signal Output | FG, 2 pulses per revolution |
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 0-300 m³/h; static pressure ΔP 0-500 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
Overall dimensions: 133 × 133 × 63 mm. The outline drawing shows a 63 ±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 (+48 VDC); U2: GND; U3: 0-10 V/PWM speed-control input; U4: FG speed-output signal, 2 pulses per revolution.
The Vfg supply and pull-up resistor are connected by the customer: Vfg = 3-30 VDC; R ≥ 1000 × Vfg Ω.
Download
BE-B133B-EC-03 Technical Specification
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