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Blauberg BD-B133A-EC-00 is a 133 mm DC backward curved centrifugal fan designed for 24 VDC operation. It uses a seven-blade PA+GF impeller and supports 0-10 VDC or PWM speed control with FG speed feedback.
Basic Info
| Model No. | BD-B133A-EC-00 | Airflow Direction | All Around |
| Product Type | DC Backward Curved Centrifugal Fan | Nominal Voltage | 24 VDC |
| Nominal Voltage Range | 19-29 VDC | Nominal Speed | 4300 ±5% RPM |
| Maximum Input Power | 51 W | Maximum Input Current | 2.1 A |
| Sound Level | 71 dB(A) | Operating Temperature | -25 to +60 °C |
| Protection Rating | IP55 | Insulation Class | Class B |
Technical Description
| Dimension: | 133 × 133 × 110 mm | Mode of operation: | S1 |
| Materials Impeller: | PA+GF | Number of Blades: | 7 |
| Motor Type: | EC072DC24V085W | Motor Bearing: | Ball bearing |
| Direction of rotation: | Clockwise, viewed toward rotor | Installation Position: | Any |
| Speed Control: | 0-10 VDC / PWM | PWM Input: | 1-10 kHz; 10 VDC ±5% recommended |
| Voltage Control: | Start >1.0 VDC; stop <0.5 VDC | PWM Control: | Start >10%; stop <5% |
| Signal Output: | FG, 2 pulses per revolution | Cable: | PVC, 2×AWG18 + 2×AWG24, 500 ±20 mm |
| Protection Functions: | Locked-rotor, thermal, over-voltage, under-voltage, overcurrent and soft-start protection | Storage Conditions: | -40 to +80 °C; 5%-95% RH |
| Dielectric Strength: | 500 VAC, 50 Hz, 1 min; leakage ≤10 mA | Compliance: | CCC, CE, 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 0-450 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
Fan size: 133 × 133 × 110 mm. The outline drawing shows an outer diameter of Ø133 mm, a 110 ±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 red: positive power supply (+24 VDC); U2 blue: GND; U3 yellow: 0-10 V/PWM control input (SELV); U4 white: tach/FG output, 2 pulses per revolution (SELV).
For FG output, use Vfg 3.3-30 VDC and pull-up resistor R ≥ 1000 × Vfg Ω. Voltage control starts above 1.0 VDC and stops below 0.5 VDC. PWM uses 1-10 kHz with recommended 10 VDC ±5% amplitude, starts above 10% duty and stops below 5% duty.
Download
BD-B133A-EC-00 Product Specification
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