Description
The NMB 12038VA-24P-FU is an industrial-grade, heavy-duty 24V DC axial cooling fan engineered for intensive thermal dissipation in high-density power electronics. Featuring dual precision ball bearings and an integrated 4-wire interface, this unit provides high static pressure airflow combined with real-time tachometer feedback and pulse-width modulation (PWM) speed regulation.
TECHNICAL SPECIFICATIONS
Manufacturer: NMB-MAT (MinebeaMitsumi)
Model: 12038VA-24P-FU
Frame Dimensions: 120 mm x 120 mm x 38 mm (Mounting Hole Spacing: 104.8 mm ± 0.3 mm, Hole Diameter: Ø 4.3 mm)
Rated Voltage: 24 V DC
Operating Voltage Range: 18.0 V DC to 27.6 V DC
Rated Current: 0.89 A
Rated Input Power: 21.36 W
Rotational Speed: 4,000 RPM ± 10%
Airflow Rate: 5.40 m³/min (190.7 CFM)
Static Pressure: 175 Pa (0.70 in H2O)
Acoustic Noise: 54.0 dBA
Bearing System: Dual Precision Ball Bearings
Termination Type: 4-Wire Leads with Terminated Connector (+24V, GND, Tachometer/FG, PWM Input)
Motor Protection: Locked Rotor Protection with Auto-Restart and Polarity Protection
Housing Material: Reinforced PBT Plastic (UL 94V-0 Flame Retardant)
Impeller Material: Reinforced PBT Plastic (UL 94V-0 Flame Retardant)
Operating Temperature Range: -10 °C to +70 °C
Storage Temperature Range: -40 °C to +75 °C
Insulation Resistance: 10 MΩ or higher at 500 V DC
Life Expectancy (L10): 70,000 Hours at 40 °C continuous duty
Weight: 370 g
Compliance: RoHS, CE, UL Recognized Component
INDUSTRIAL APPLICATION AND SYSTEM INTEGRATION
This model is specifically engineered to resolve localized thermal saturation in variable frequency drives (VFDs), industrial servo inverters, uninterruptible power supplies (UPS), and telecom rectifiers. Its high static pressure capability overcomes resistance in dense heatsink extrusions, preventing thermal tripping of IGBT switches under peak electrical loads. The 4-pin closed-loop architecture allows host PLCs and inverter control boards to adjust RPM dynamically and trigger automatic failsafe protocols upon tachometer deviation.
OEM ENGINEERING AND PROCUREMENT
Technical Compatibility: Direct drop-in replacement for industrial inverters and automation control cabinets requiring high-pressure 120 mm x 38 mm cooling profiles.
Original Engineering: Manufactured to strict OEM tolerances to ensure low vibration harmonics and extended continuous lifecycle performance.
Lead Time and Fulfillment: Available for industrial MRO supply chains with streamlined logistics. Contact engineering support for bulk order lead time, buffer stock options, and interface pinout verification.











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