IndustrialPPC 24V 1

IndustrialPPC NF-F12 and NF-A14 24V PWM Fans Review

  1. Introduction, Packaging and Specs
  2. Test setup and Results (NF-F12 24V)
  3. Test setup and Results (NF-A14 24V)
  4. Conclusion
  5. Online Purchase Links

Disclosure: This review unit is supplied by Noctua

The new IndustrialPPC NF-F12 and NF-A14 fans are 24V DC operated though they can operate at 12v which PC systems typically provide. The tradeoff is that it will operate at reduced RPMs. How could you get a 24v power on a desktop system when typical power supplies don’t supply anything more than 12v? One of the better options is to use a 12/24v fan and pump controller, like a Koolance CTR-SPD1224M 12v/24v Pump/ Fan controller. After researching in multiple tech forums, one of the common suggestion is either to use +12v and -5v together thus providing 17v or +12v and -12v together for 24v.

I did ask Noctua for a second opinion because these suggestions are from age old forum discussions and not many were able to make an assuring confirmation. The company folks did give a disclaimer though swapping –12v in the place of Ground could work, it may cause a problem with the PWM and RPM signal transmission since ‘ground’ is replaced with the ‘-12v’ line- while watching the max amperage on the same. As one would expect, using a converter is a safer option.

These aren’t the only 24v DC fans with PWM keeping PCs in mind. NMB, Delta, Mechatronics and few others are known for making 24v high-speed fans between 40mm to 127mm and 140mm- even without the connectors. But these fans can run on 12v (and assured by Noctua) but at lower speeds. It goes without saying that running 12v fans at 24v may not be a good idea.

But what really separates these with others is that IndustrialPPC still uses its tried and tested SS02 bearing, plus the rigid build quality. Mind you, these are not meant to be cheap. These fans have wide applications and are also IP67 rated

Applications are many. Such as large UPS that need active heat dissipation. Typically, they use 24v DC fans which are temperature controlled. Bass amplifiers use 24v DC fans as well. Large servers and NAS meant for heavy work in large enterprise most likely are using 24v DC fans. Applications are many, and having a silent or near silent operations good for certain tasks is a great option to consider.

IndustrialPPC fan linups

Do bass amplifiers even have four pin fan controllers? Even if they don’t, Noctua does have a non-PWM variant of these fans. IndustrialPPC lineups have six fans each for both 120mm and 140mm fan sizes, including the 2,000 RPM non-PWM 3-pin headers.

  • FAN SpecificationNF-F12 -24V-2000 IP67 PWMNF-F12 -24V-3000 IP67 PWM
    Size120x120X25 mm
    Connector4-Pin PWM
    BearingSSO2
    Blade GeometryHeptaperf™
    Frame TechnologyFocusedFlow™
    Rotational Speed (+/- 10%)2000 RPM3000 RPM
    Min. Rotational Speed (PWM, +/-20%)450 RPM750 RPM
    Rotational Speed @ 12V (+/- 10%)1050 RPM1600 RPM
    Airflow121.8 m³/h186.7 m³/h
    Acoustical Noise29.7 dB(A)43.5 dB(A)
    Static Pressure3.94 mm H₂O7.63 mm H₂O
    Max. Input Power1.68 W4.32 W
    Max. Input Current0.07 A0.18 A
    Voltage24 V
    MTBF> 150.000 h
    Scope of Delivery
    • Fan
    • 4 Fan Screws
    Warranty6 years
    Ingress ProtectionIP67
    MaterialFibre-glass reinforced polyamide
    Motor typeThree-phase
  • FAN SpecificationNF-A14 -24V-2000 IP67 PWMNF-A14 -24V-3000 IP67 PWM
    Size140x140x25 mm
    Connector4-Pin PWM
    BearingSSO2
    Blade GeometryA-Series with Flow Acceleration Channels
    Frame TechnologyAAO
    Rotational Speed (+/- 10%)2000 RPM3000 RPM
    Min. Rotational Speed (PWM, +/-20%)500 RPM800 RPM
    Rotational Speed @ 12V (+/- 10%)1100 RPM1800 RPM
    Airflow182.5 m³/h269.3 m³/h
    Acoustical Noise31.5 dB(A)41.3 dB(A)
    Static Pressure4.18 mm H₂O10.52 mm H₂O
    Max. Input Power2.4 W7.92 W
    Max. Input Current0.1 A0.33 A
    Voltage24 V
    MTBF> 150,000 h
    Scope of Delivery
    • Fan
    • 4 Fan Screws
    Warranty6 years
    Ingress ProtectionIP67
    MaterialFibre-glass reinforced polyamide
    Motor typeThree-phase

Note that these fans use three-phase motors. Noctua says that its three-phase motor design will be smooth even when running at high speeds and also help to reduce vibrations and be energy efficient. The fan feels solid compared to OEM-type fan bundles since they are made of fibreglass reinforced polyamide. These are IP67 rated, which means that these fans are dust proof and protection from immersion between 15cm and 1 metre.

Just likes its standard Noctua counterparts, the IndustrialPPC 24v variants have different blade designs but they are of same design when compared with the standard Noctua NF-12 and the NF-A14 that is pre-bundled with the Noctua NH-U12S and the NH-C14S. The NF-F12 fans are seven-blade design, with each having a sharp end on both sides of each blade. The NF-A14 fans are seven-blade design but with curved edges with three curved lines on each blade. Both fans have the 2,000 and 3,000 RPM designs. The packaging contents are nothing more than the fan with the rubber grommets on the mounts and four screws.

CPU fans being dustproof rated is always a good point, but water immersion? Under what situation will a PC fan be immersed?

Maybe not for the purpose of immersion. Maybe it will be useful for those who would like to have a system submerged in mineral oil? Or maybe it will be a piece of mind for those who run their own liquid cooling setup and bit anxious of the worst case scenario. Even AIO liquid coolers are known to leak. Another reason I could think is for extreme overclockers who use fans during LN2 session- and avoid any possibility of damage on the fans due to liquid formed during condensation (assuming it does happen within the fan’s motors- if not on the blades. While chances of this may not happen in humid countries, one may have to wonder the benefits of this in cold countries.

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