Award-winning NF-A14 design

Having received more than 100 awards and recommendations from the international press, Noctua's NF-A14 has become a proven premium choice for 140mm cooling needs. Its renowned efficiency has convinced tens of thousands of customers worldwide.

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3000rpm industrialPPC version

Running twice as fast as the 1500rpm retail version, the NF-A14 industrialPPC-3000 provides extreme airflow and pressure performance. Combined with the industrialPPC series' robust polyamide construction and advanced protection features, the fan is ideal for challenging industrial applications.

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24V SP version

The industrialPPC 24V SP models use Noctua's new NE-FD5 high-performance single-phase PWM motor driver IC. Thanks to its excellent commutation efficiency, the NE-FD5 enables the SP versions to achieve exactly the same performance as previous models with three-phase motors.

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Lower speed and noise levels in 12V PC environments

While the industrialPPC 24V model has been designed with 24V industrial applications in mind, it runs at a maximum speed of around 1100rpm in 12V PC environments. It can be slowed down further via PWM, thus combining industrialPPC features and design with Noctua's signature quietness.

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NE-FD5 PWM IC with SCD

The fan uses Noctua's custom-designed NE-FD5 PWM IC for 24V single-phase motors to support fully automatic PWM speed control. The NE-FD5 provides excellent energy efficiency and integrates Noctua's proprietary Smooth Commutation Drive (SCD) technology, suppressing PWM switching noise and thus making the fan quieter at lower speeds.

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High electrical robustness

Meeting stringent requirements for burst and surge protection, the 24V SP version's high electrical robustness permits the fan to be used in automotive projects and in other harsh environments with transients from electric motors and other inductive switching loads.

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Inrush current suppression

The fan's voltage-stabilised inrush current suppression provides a smooth power-up and dramatically reduces power line transients that otherwise could affect other electronic components connected to the power line. This makes the fan safe to use in sensitive electronic environments.

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Certified IP67 water- and dust protection

The motor and PCB of the IP67 version are entirely cast in a special, highly heat-conductive resin that combines thoroughgoing protection and effective motor heat dissipation. Complying with the ingress protection rating IP67, this fan is fully dust-tight and completely waterproof up to 1m water depth.

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Fibreglass reinforced polyamide construction

Both the impeller and the frame of Noctua's industrialPPC fans are made entirely from fibre-glass reinforced polyamide. This material can withstand temperatures up to 140°C, making the fans even more robust and break-proof than Noctua's standard fibre-glass reinforced PBT fans.

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Flow Acceleration Channels

The NF-A14 impeller features suction side Flow Acceleration Channels. By speeding up the airflow at the crucial outer blade regions, this measure reduces suction side flow separation and thus leads to better efficiency and lower vortex noise.

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AAO frame

Noctua's AAO (Advanced Acoustic Optimisation) frames feature integrated anti-vibration pads and Noctua's proprietary Stepped Inlet Design and Inner Surface Microstructures, which further refine the fan's performance/noise efficiency.

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Stepped Inlet Design

Noctua's Stepped Inlet Design adds turbulence to the influx to facilitate the transition from laminar flow to turbulent flow, which reduces tonal intake noise, improves flow attachment and increases suction capacity, especially in space-restricted environments.

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Inner Surface Microstructures

With the tips of the fan blades ploughing through the boundary layer created by the Inner Surface Microstructures, flow separation from the suction side of the blades is significantly suppressed, which results in reduced blade passing noise and improved airflow and pressure efficiency.

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Integrated anti-vibration pads

Integrated anti-vibration pads made from extra-soft silicone minimise the transmission of minute vibrations while maintaining full compatibility with all standard screws and other mounting systems.

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SSO2 Bearing

The NF-A14 industrialPPC features the further optimised second generation of Noctua's renowned, time-tested SSO bearing. With SSO2, the rear magnet is placed closer to the axis for better stabilisation, precision and durability.

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SSO2 Bearing

The NF-A14 industrialPPC features the further optimised second generation of Noctua's renowned, time-tested SSO bearing. With SSO2, the rear magnet is placed closer to the axis for better stabilisation, precision and durability.

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6-year manufacturer's warranty

Noctua fans are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the NF-A14 industrialPPC features an MTTF rating of over 150.000 hours and a full 6-year manufacturer's warranty.

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Acoustical noise: 41.3 dB(A)
Airflow: 269.3 m3/h
Bearing: SSO2
Connector & pin-configuration: 4-pin PWM
Ingress protection: IP67
Mounting hole spacing: 124.5 x 124.5 mm
MTTF: >150.000 hours
NF-A14-24-3-SP-IP67-PWM
Noctua NF-A14 140mm Industrial PPC IP67 3000RPM 4-Pin PWM Fan
Operating voltage: 24V
Rotational speed (+/- 10%): 3000 RPM
Size: 140x140x25 mm
Static pressure: 6
58 mm H2O
Voltage PWM signal: 5V