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Square black 120mm case fan with 38mm depth and two wires

Fans

Fans CNDC24B7 24V 0.2A 4.8W 12038 case fan

SKU CH-M13N-1N689 MPN CNDC24B7

A 24 V, 0.2 A axial case fan with double ball bearings measuring 120×120×38 mm

  • Reliable cooling for industrial inverters with Japanese servo build quality
  • Efficient 4.8W DC24V operation draws just 0.2A current
  • Long-life double ball bearings reduce maintenance in continuous use
  • Compact 120*120*38MM frame fits standard 12038 mounting holes
  • Versatile two-wire design simplifies integration across medical, rail and energy systems

What it is

The Fans CNDC24B7 is a 120 by 120 by 38 millimetre axial case fan built around a Japanese servo motor. It runs on 24 volt DC power and draws zero point two amps for a rated consumption of four point eight watts. The two wire connection and double ball bearing suit industrial and embedded cooling tasks.

Critical spec

Operation requires a 24 volt DC source; the fan will not start or run correctly on 12 volt or 5 volt rails. The fixed current draw of zero point two amps means the power supply must deliver at least four point eight watts on the 24 volt line. Builders using standard PC 12 volt headers cannot use this unit without a separate voltage converter.

Sustained behaviour

Double ball bearings maintain consistent rotation during continuous duty in medical, rail, drive inverter and new energy vehicle environments. The servo grade motor keeps speed stable under long thermal loads without the wear pattern seen in sleeve bearing designs. Airflow remains steady as long as the 24 volt supply is stable.

Highlights

  • Reliable cooling for industrial inverters with Japanese servo build quality
  • Efficient 4.8W DC24V operation draws just 0.2A current
  • Long-life double ball bearings reduce maintenance in continuous use
  • Compact 120*120*38MM frame fits standard 12038 mounting holes
  • Versatile two-wire design simplifies integration across medical, rail and energy systems

Specifications

No published specifications for this item yet.

Questions about this item

What does the 4.8W power rating mean for a system running this fan?

The fan draws 0.20 A at 24 V, so it adds 4.8 W of load to the 24 V rail and requires a supply that can deliver that current continuously.

How does the 2-wire interface limit speed control options?

With only two wires the fan runs at full speed whenever 24 V is present; there is no PWM or tachometer signal for variable-speed control.

Will the 120 mm by 120 mm by 38 mm frame fit a standard 120 mm mounting pattern?

Yes, the 120 mm square footprint matches common 120 mm case-fan holes, but the 38 mm thickness is deeper than typical 25 mm fans, so check clearance behind the mounting surface.

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