Description
The NMB 04028DA-24R-AUF-2 is an extremely high-performance 24V DC axial cooling fan measuring 40mm x 40mm x 28mm. Operating at a rated current of 0.26A (6.24W), this fan is engineered for critical thermal management in highly dense electronic equipment. It achieves a remarkable rotational speed of 18000 RPM, delivering 26.0 CFM of airflow with a high static pressure (though exact static pressure for this specific current is not universally listed, it’s characteristic of high-performance 40x28mm fans, often in the range of 2.0-2.5 inch-H2O). Its noise level is approximately 55.0 dBA, reflecting its powerful output. The fan is equipped with ball bearings for a long operational life of 70,000 hours at 40°C. Connectivity is via 4-wire leads, which include a pulse sensor for speed monitoring and a PWM input for precise speed control. Integrated features also include auto-restart and polarity protection, ensuring robust and controlled performance in demanding cooling scenarios.
Model Number: 04028DA-24R-AUF-2
Manufacturer: NMB Technologies Corporation
Type: DC Axial Cooling Fan
Dimensions: 40mm x 40mm x 28mm
Rated Voltage: 24V DC
Operating Voltage: 14.4V to 26.4V DC
Rated Current: 0.26A
Rated Power: 6.24W
Speed: 18000 RPM
Airflow: 26.0 CFM / 0.74 m³/min
Static Pressure: Approximately 2.0-2.5 inch-H2O (500-620 Pa) (Exact value for 0.26A variant not universally specified, but characteristic of DA series)
Noise Level: 55.0 dBA
Connector: 4-Wire Leads
Bearing Type: Ball Bearing
Life Expectancy: 70,000 hours at 40°C
Operating Temperature: -10°C to 70°C
Frame Material: Plastic
Impeller Material: Plastic
Features: PWM Control, Pulse Sensor, Auto Restart, Polarity Protection
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