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Square black plastic frame fan with three wires visible

Fans

Fans 1608KL-05W-B69Size 24V 0.13A 7500RPM case fan

SKU CH-6NPY-M3755 MPN 1608KL-05W-B69Size

24 V 40 mm case fan runs at 7500 RPM, moves 8.4 CFM at 25.5 dBA, and is rated for 50 000 hours

  • Reliable cooling with 7500 RPM airflow
  • Low 25.5 dBA noise for quiet operation
  • Long 50000 hour service life reduces replacements
  • Three-wire signal alarm enables speed monitoring
  • Compact 40 mm frame fits tight spaces

Compact 24V cooling fan

The NMB 1608KL-05W-B69 is a 40 mm square axial fan designed for 24 V DC systems. It draws 0.13 A and runs at 7500 RPM, making it suitable for tight industrial enclosures, medical devices or rail-vehicle electronics.

Three-wire signal alarm

A three-wire lead provides power, ground and a speed-alarm signal so the host can detect stall or slow-down immediately. The 20 mm frame depth fits standard 40 mm mounting holes without extra brackets.

25.5 dBA airflow limit

At 8.4 CFM the fan delivers modest airflow with 42.2 Pa static pressure, so it cools small heatsinks but cannot move air through dense meshes or long ducts. The 50 000 hour rated life assumes operation within the -20 to 75 °C ambient range.

Highlights

  • Reliable cooling with 7500 RPM airflow
  • Low 25.5 dBA noise for quiet operation
  • Long 50000 hour service life reduces replacements
  • Three-wire signal alarm enables speed monitoring
  • Compact 40 mm frame fits tight spaces

Specifications

No published specifications for this item yet.

Questions about this item

What signal type does the three-wire connector provide?

The third wire carries a tachometer or alarm signal so the host can monitor the 7500 RPM speed.

What are the exact mounting dimensions?

The frame measures 40 by 40 mm with a 20 mm thickness and weighs 25 g.

How is the fan wired for 24 V operation?

Connect the red lead to 24 V, the black lead to ground, and the third wire to the monitoring input; reversing polarity will prevent the fan from starting.

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