11938KA-24M-EL NMB original fan

Name: 11938KA-24M-EL NMB original fan
Brand: NMB
SKU: 950063869554
Availability: InStock
Rating: 5 (4 reviews)

$7.43

SKU: 950063869554 Brand: NMB

Description
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Description

The NMB-MAT 11938KA-24M-EL is a high-performance 120mm axial cooling fan engineered for precision thermal management in industrial and enterprise-grade hardware. This model operates at a nominal 24 VDC with a current draw of 0.46 A, delivering an optimized balance of high static pressure and efficient airflow for critical cooling requirements.

Technical Specifications:
Manufacturer: NMB-MAT (MinebeaMitsumi)
Model Number: 11938KA-24M-EL
Dimensions: 120 x 120 x 38 mm
Rated Voltage: 24 VDC
Operating Voltage Range: 10.0 – 27.6 VDC
Rated Current: 0.46 A
Bearing Type: Dual Ball Bearing
Interface: 4-Wire (PWM Speed Control and Tachometer Signal)

Engineering and Reliability:
Equipped with a precision-engineered dual ball bearing system, the 11938KA-24M-EL is designed for continuous 24/7 operation in demanding environments. This bearing architecture ensures a significantly higher Mean Time Between Failure (MTBF) compared to standard sleeve bearing alternatives, maintaining stability even at elevated operating temperatures. The 4-wire configuration supports Pulse Width Modulation (PWM), allowing for dynamic speed adjustment based on real-time thermal loads, which minimizes acoustic noise and reduces total system energy consumption.

Industrial Applications:
This component is a critical cooling solution for high-density server enclosures, variable frequency drives (VFDs), and power supply units. Its 38mm depth is specifically designed to generate the static pressure necessary to move air through restrictive heat sinks and dense internal circuitry, making it an essential spare part for maintaining the thermal integrity of industrial automation and telecommunications infrastructure.

Procurement and Logistics:
Original engineering quality ensures seamless integration and drop-in replacement for existing systems. We provide reliable lead times and global shipping options, including SF Express, to support urgent maintenance and repair operations. Bulk quantity discounts are available for large-scale industrial procurement.

11938KA-24M-EL NMB original fan

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Fans Maintenance and upkeep

1. The use environment should always be kept clean and tidy, the surface of the fan should be kept clean, there should be no sundries in the inlet and outlet air outlets, and the dust and other sundries in the fan and pipes should be cleaned regularly;

2. The fan can only operate under the condition that it is completely normal, and at the same time, it is necessary to ensure that the capacity of the power supply facilities is sufficient and the voltage is stable.

3. During the operation of the fan, if it is found that the fan has abnormal sound, the motor is seriously heated, the shell is live, the switch trips, and cannot be started, it should be stopped immediately for inspection. In order to ensure safety, maintenance is not allowed during the operation of the fan, and a test run should be carried out for about five minutes after the overhaul to confirm that there is no abnormal phenomenon before starting the operation;

4. The fan should be stored in a dry environment to avoid moisture on the motor. When the fan is stored in the open air, there should be defensive measures. In the process of storage and handling, the fan should be prevented from bumping to avoid damage to the fan.

FAQ

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