Description
The Delta THB1248B-A is a high-performance DC axial fan engineered for demanding industrial and server cooling applications requiring elevated static pressure and airflow. Operating at a nominal 48VDC, this 120mm cooling solution integrates a precision-wound DC brushless motor with a durable ball bearing system to ensure operational longevity and reduced thermal impedance under continuous loads. The unit features an optimized impeller design that maximizes aerodynamic efficiency while maintaining structural rigidity at high rotational speeds. Equipped with a 4-wire PWM interface, the THB1248B-A allows for precise speed modulation, enabling dynamic thermal management strategies that balance cooling performance with energy consumption in high-density electronic enclosures.
Model Number: THB1248B-A
Brand: Delta Electronics
Product Type: DC Axial Fan
Rated Voltage: 48VDC
Voltage Range: 36.0 – 60.0 VDC
Rated Current: 0.75 A
Power: 36.0 W
Rated Speed: 4800 RPM
Bearing Type: Ball Bearing
Max. Air Flow: 183.2 CFM (311.2 m³/h / 5.18 m³/min)
Max. Static Pressure: 18.5 mmH₂O (181.4 Pa / 0.73 inH₂O)
Dimensions: 120x120x25mm
Weight: 280 g
Life Expectancy: 70000 hrs at 40°C
Speed Control: PWM
Signal Output: Tachometer (Frequency Generator)
Ingress Protection: IP54
Insulation Class: Class A
Noise Level: 58.5 dB(A)
Housing Material: PBT Plastic (UL94V-0)
Blade Material: PBT Plastic (UL94V-0)
Termination: 4-Wire Lead
Operating Temperature: -10°C to +70°C
Storage Temperature: -40°C to +75°C
Mounting Orientation: Any
Motor Protection: Locked Rotor Protection; Reverse Polarity Protection
The THB1248B-A is specifically configured for high-impedance environments such as telecommunications cabinets, 48V DC server racks, and industrial automation power supplies where consistent airflow is critical. Its slim 25mm profile allows for integration into space-constrained chassis without sacrificing the pressure capabilities typically found in thicker fans. The THB1248B-A is also utilized in forced-air cooling for renewable energy inverters and high-capacity network switches, ensuring component stability during peak operational cycles.
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Additional information
| Shipping Weight | 1 kg |
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