Description
The NMB 12038VA-48R-EL-01 is an ultra-high-output industrial DC axial fan, identified by its “12038” size code, specifically engineered for extreme thermal management in 48V infrastructure. This 120 x 120 x 38 mm unit features a precision dual ball bearing system and a specialized 5-blade high-velocity impeller designed for maximum air displacement. Operating at 48 VDC with a heavy-duty current draw of 0.90 A (43.20 W), it delivers a super-high rotational speed of 5500 RPM, producing a massive 200.30 CFM of airflow. The 3-wire configuration includes a dedicated Speed Sensor (FG) signal for real-time monitoring. Built with a brushless DC motor and advanced electronic protection, this fan is a critical cooling component for enterprise-grade power rectifiers, high-capacity industrial inverters, and outdoor telecommunications cabinets requiring extreme heat dissipation under high static pressure.
12038VA-48R-EL-01 Fan Parameters
Manufacturer: NMB (MinebeaMitsumi)
Model Number: 12038VA-48R-EL-01
Industry Size Code: 12038
Type: DC axial fan
Bearing Type: Dual Ball Bearing
Nominal Voltage: 48 VDC
Voltage Range: 28.0 – 56.0 VDC
Starting Voltage: 28.0 VDC
Dimensions: 120 x 120 x 38 mm
[Electrical Data]
Input Power: 43.20 W
Nominal Current: 0.90 A
Max. Current: 1.10 A
Nominal Speed: 5500 RPM (Tolerance ±10%)
Motor Design: Brushless DC Motor, 4-pole
Signal Output: FG (Frequency Generator/Tachometer)
Motor Protection: Auto Restart, Polarity Protection, Locked Rotor Protection
Insulation Resistance: 10M ohm at 500 VDC
Dielectric Strength: 700 VAC for 1 minute
Termination: 3-Lead wires (UL1007, AWG#24, Red/Black/White)
[Performance & Acoustics]
Max. Air Flow: 200.30 CFM (340.31 m³/h / 5.67 m³/min)
Max. Static Pressure: 28.50 mmH₂O (279.49 Pa / 1.12 inH₂O)
Sound Pressure Level: 62.0 dB(A) (Measured at 1 meter)
Number of Blades: 5
Direction of Rotation: Counter-clockwise (viewed toward impeller)
Airflow Direction: Intake over struts
[Materials & Construction]
Frame Material: Thermoplastic PBT (UL94V-0)
Impeller Material: Thermoplastic PBT (UL94V-0)
Installation Position: Any
Degree of Protection: IP54
[Reliability & Safety Standards]
Min. Ambient Temperature: -10 °C
Max. Ambient Temperature: 70 °C
Life Expectancy (L10): 70,000 hours at 40 °C
Standard Compliance: IEC 60950-1, EN 61000-6-1/3
Approval Agency: UL, CSA, VDE, CE, RoHS
Application
The NMB 12038VA-48R-EL-01 axial fan is used in 48V DC power supply systems, telecommunications base stations, outdoor network cabinets, high-capacity industrial inverters, and server rack cooling modules.
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