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Square 120mm black frame fan 38mm thick three wires visible

Fans

Fans 4715KL-05W-B39 24V 0.4A 12038 case fan

SKU CH-V4E7-J1F6Y

24V 120 mm case fan with double ball bearing, 3300 RPM, 190 m³/h airflow and 47 dB noise

  • 24 V DC input with 10–27.6 V operating range
  • 3300 RPM motor speed delivers 190 m³/h airflow
  • 6 W power draw at 0.4 A current
  • Double ball bearing rated 50 000 hours L10 life at 25 °C
  • 47 dB noise level in –10 to 70 °C range

Industrial Cooling Fan

The NMB 4715KL-05W-B39 is a 120 mm by 38 mm axial fan built for industrial and embedded systems that require 24 V DC power. It suits equipment racks, medical devices, rail vehicles and new-energy platforms where a maintenance-free double ball bearing is specified.

Airflow and Operating Limits

The fan moves 190 cubic metres per hour at 3300 RPM while developing 83 Pa of static pressure. It operates reliably from 10 V to 27.6 V and across a temperature range of -10 °C to 70 °C, so headroom exists for voltage variance but airflow is fixed at the rated speed.

Acoustics and Power Draw

At the rated 9.6 W input the noise index is 47 dB, a level suited to server rooms rather than quiet desktops. The Class E insulation and VO-grade flame-retardant PBT frame meet industrial safety standards, and the 300 mm lead simplifies wiring in tight cabinets.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $31.99
Pricier than about 78% of the 8,339 comparable items (median $19.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Will the 24 V 12038 fan run from the same 12 V header I use for my older 120 mm fans?

The fan is rated for 24 V DC with an operating range of 10 V to 27.6 V, so a 12 V header will not supply enough voltage for reliable operation.

How can I confirm the 3300 RPM fan is spinning correctly after installation?

Listen for the 47 dB noise level and check that airflow matches the 190 m³/h rating; the tachometer wire on the three‑line connector will report 3300 RPM to the motherboard or fan controller.

What comes in the box and what must I source separately for the 4715KL‑05W‑B39?

The fan ships with a 300 mm three‑wire lead; you will need a 24 V power source or compatible fan header and mounting screws, which are not included.

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