Designed for industrial applications, the NF-A14 IndustrialPPC (PPC stands for Protected Performance Cooling) is a more robust, fast rotating version of the award-winning retail model. Thanks to the excellent aerodynamic efficiency of the NF-A14 design as well as a new three-phase motor, the IndustrialPPC versions with their higher speed offer real high-performance cooling, but has a moderate noise development and power consumption compared to similarly fast rotating fans. With its fiberglass-reinforced polyamide construction as well as extended water and dust protection, the NF-A14 industrial PPC is also suitable for use in demanding environments. At the same time, the high-quality SSO2 warehouse guarantees an MTTF of over 150,000 hours. Complemented by the reliability familiar from Noctua, the NF-A14 IndustrialPPC is a perfect choice for particularly challenging applications requiring superior cooling performance and maximum operational reliability.Award-winning NF-A14 designWith more than 100 recommendations and awards from the international trade press, the NF-A14 has become a reference in the field of high-quality 140mm fans. Its outstanding efficiency has already convinced tens of thousands of customers around the world.3000rpm IndustrialPPC versionThe NF-A14 IndustrialPPC-3000 offers extremely high output and static pressure with the maximum speed doubled compared to the 1500rpm Retail version. Together with the robust polyamide construction as well as the extended protection features of the industralPPC line, this makes the fan a perfect choice for demanding industrial applications.Three-phase motor designWhile most axial fans use single-phase motors with four anchors, Noctua's industrial PPC models use a three-phase design with six anchors that provides smoother transitions between the anchors, enabling even greater smoothness, even lower vibrations and even better energy efficiency.Leading energy efficiencyThe standard version of the NF-A14 is already one of the most energy-efficient 1500rpm 140mm fans on the market. Nevertheless, the industrial PPC version with its three-phase motor at 2000rpm comparison speed offers a further 10% lower power consumption.Fiber glass reinforced polyamide constructionBoth the impeller and the frame of Noctuas IndustrialPPC fans are made entirely of fiberglass-reinforced polyamide. This makes the fan even more robust and break-proof than Noctuas made of standard models made of fiberglass-reinforced PBT.Certified IP52 water and dust protectionThanks to a special paint finish of the motor and the PCB, the NF-A14 industrial PPC conforms to protection class IP52. This means that the fan is not only extremely dust-resistant, but also withstands dripping water at a rate of 3mm rain per minute.Flow Acceleration ChannelsThe impeller of the NF-A14 is equipped with so-called flow acceleration channels on the suction side. By accelerating the airflow in the critical outer regions of the fan blades, suction-side eddy solutions are reduced, resulting in higher efficiency and a lower turbulence-related noise emission.AAO frame systemNoctuas AAO (Advanced Acoustic Optimization) frames have integrated vibration buffers, a stepped inlet design and an internal surface microstructure (Inner Surface Microstructures) that enable even better performance/noise efficiency.Quilted inlet designThe stepped inlet area of the Stepped Inlet Design creates more turbulence in the supply. This facilitates the transition from laminar flow to turbulent flow, which is better attached to the frame (flow attachment) and thus increases the suction capacity of the fan, especially with a limited suction area.Inner Surface MicrostructuresThe inner surface microstructure (Inner Surface Microstructures) creates a boundary layer through which the tips of the fan blades move. This reduces the current separation from the suction side of the blade tips, resulting in a significant reduction of the rotating tone and an increase in the pressure and air flow efficiency.Integrated anti-vibration padsThe anti-vibration pads made of extra-soft silicone reduce the transmission of minimal vibrations and are also compatible with all commercially available mounting systems and fan clamps used in CPU coolers.SSO2 bearingsThe fan is equipped with the further optimized second generation of Noctua's proven SSO bearing system. With SSO2 the rear magnet sits closer to the fan axis and thus causes an even better stabilization, which leads to a further improved precision and durability.Metal bearing shellIn order to guarantee the greatest possible degree of manufacturing precision, minimum tolerances and excellent long-term stability, a CNC machined bearing shell made of brass is used.PWM IC WITH SCDThe fan supports fully automatic speed control via PWM and uses Noctua's specially designed NE-FD2 chip for this purpose. This new PWM IC integrates Noctuas Smooth Commutation Drive (SCD) technology, which minimizes PWM switching noise