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Square 90mm axial fan with black frame and blades

Fans

Fans AA9251MS-AWSize 110V 0.15A 90 x 90 x 25mm case fan

SKU CH-C3J2-SC938 MPN AA9251MS-AWSize

An axial cooling fan for 110 V AC systems measuring 90 x 90 x 25 mm and drawing 0.15 A

  • Cools medical and rail systems reliably
  • 110-120V AC suits industrial power supplies
  • Axial flow moves air across dense heatsinks
  • 90 x 90 x 25mm frame fits standard mounts
  • New ADDA build quality for continuous duty

Compact 90 mm AC axial fan

This 90 x 90 x 25 mm axial fan runs on 110–120 V mains power and draws 0.15 A. It is built for industrial and commercial equipment such as medical devices, rail vehicles, drives, hotel systems, cleaning machines, electronic enclosures, new-energy vehicles and supermarket units. The fan is not intended for standard PC case cooling because it requires AC mains voltage instead of a 12 V DC header. Buyers who need a low-voltage PWM or DC fan for a motherboard should look elsewhere.

Direct wire installation

The unit has no Molex, 3-pin or 4-pin connector; the leads must be wired into an AC circuit with proper insulation and strain relief. Installation therefore requires basic electrical wiring skill and adherence to local mains-voltage safety codes. A common mistake is connecting the fan to a PC fan header, which will damage the header and leave the fan inoperative. Another issue is mounting the 25 mm thick frame in a chassis that only accepts 15 mm or 20 mm fans.

110–120 V AC operation limits

Because the fan operates directly from 110–120 V AC, it cannot be speed-controlled by a motherboard PWM signal or a typical DC fan controller. Speed is fixed by line frequency and voltage, so airflow and noise stay constant. The fan also lacks a tachometer output, so the host system cannot monitor its rotation. These constraints make it unsuitable for builds that rely on software fan curves or thermal feedback loops.

Ciri-ciri utama

  • Cools medical and rail systems reliably
  • 110-120V AC suits industrial power supplies
  • Axial flow moves air across dense heatsinks
  • 90 x 90 x 25mm frame fits standard mounts
  • New ADDA build quality for continuous duty

Spesifikasi

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Soalan tentang produk ini

How do I verify the AA9251MS-AW fan is running correctly after connecting it to 110V?

Confirm the fan spins smoothly and draws approximately 0.15A at 110-120V; listen for quiet axial-flow operation without vibration or unusual noise.

What is included with the AA9251MS-AW and what must I source separately?

The package contains the ADDA AA9251MS-AW axial fan unit only; mounting screws, power cable and any required connectors are not included and must be purchased separately.

Which AA9251MS-AW version should I select for a 90 x 90 x 25 mm mounting space?

Choose the AA9251MS-AW model rated 110-120V 0.15A; its 90 x 90 x 25 mm frame matches that exact cut-out and the voltage suits standard mains-powered cooling applications.

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