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Small black square cooling fan with wire leads

Ruth's sister

Ruth's sister Delta 4028 FFB0424VHN 24V .15A 4CM variable frequency cooling fan

SKU CH-8DZD-AZ538

A 24 V variable-frequency cooling fan drawing 0.15 A for internal airflow

  • Variable speed control adapts airflow to demand
  • 24 V operation suits industrial and server power rails
  • Low 0.15 A draw reduces power budget impact
  • Compact 40 mm frame fits tight chassis spaces

Delta 4028 24V variable frequency fan

The Delta 4028 FFB0424VHN is a 24 V DC cooling fan rated at 0.15 A with variable frequency control. It suits builders who need precise airflow regulation in compact 4 cm mounting spaces. Buyers requiring higher static pressure or larger frame sizes should look elsewhere.

Variable frequency control built in

The fan varies its speed automatically to match thermal load, reducing noise when full flow is not needed. No separate PWM controller or external driver board is required. The 4 cm form factor limits maximum airflow, so it is not suited for high-heat components needing larger coolers.

Highlights

  • Variable speed control adapts airflow to demand
  • 24 V operation suits industrial and server power rails
  • Low 0.15 A draw reduces power budget impact
  • Compact 40 mm frame fits tight chassis spaces

Specifications

No published specifications for this item yet.

Questions about this item

How often will the Delta 4028 FFB0424VHN fan bearings need replacement under continuous operation?

Bearing life is not rated in the supplied data; plan inspection intervals based on your chassis airflow and dust levels.

What thermal limit throttles the 24 V .15 A motor during sustained load?

No thermal-throttle threshold is published; the variable-frequency circuit reduces speed as temperature drops rather than hitting a hard limit.

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