

The EEC0251B1-0000-G99 is SUNON's 12 VDC, 120 × 120 × 25 mm DC axial fan option for telecom cabinets, base stations, and network equipment. Up to 183.8 m³/h is its most prominent listed performance figure. The recorded power demand should guide noise-control planning. Confirm environmental protection for the ordered version.
| Rated Voltage(V) | 12 |
|---|---|
| Size(mm) | 120x120x25mm |
| Max.Air Flow(m³/h) | 183.8 |
| Max.Pressure(Pa) | 69.7 |
| Input Power(W) | 5.4 |
| Speed(rpm) | 3100 |
| Noise(db) | 44.5 |
Designed for industrial equipment, the SUNON EEC0251B1-0000-G99 provides DC brushless axial fan cooling in a format suited to equipment integration. It helps limit local heat buildup during operation.
The brushless DC motor architecture supports efficient electronic commutation and stable rotational performance for compact equipment cooling. A smooth inlet and outlet transition reduces avoidable turbulence, helping preserve useful cooling capacity and manage installed sound.
Design approval for EEC0251B1-0000-G99 should cover cable routing together with prototype trials in equipment qualification. This creates a practical link between thermal validation, purchasing documentation and future servicing. Use a representative assembly rather than an unrestricted bench setup.
Its documented 12 VDC rating and up to 183.8 m³/h is its most prominent listed performance figure. allow comparison with the required duty point without assuming unlisted options.
The worksheet lists 44.5 dB. Installation distance, airflow resistance, and enclosure acoustics can change the measured result.
The worksheet lists up to 183.8 m³/h. Verify the operating point against system resistance.
Keep the airflow path clear, secure the frame without distortion, and follow the exact wiring diagram and voltage rating.
Review its 120 × 120 × 25 mm size, 183.8 m³/h airflow, 69.7 Pa pressure, system resistance, and available mounting space.
The workbook marks the product as RoHS compliant. Confirm UL, TUV, VDE, or other project-specific approvals for the exact suffix.

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