NF-A4x10 24V PWM

40x10mm, 24V premium fan

Slim 40x10mm size

Ideal replacement for noisy or broken 4cm fans

Quiet cooling performance

Outstanding airflow and pressure at minimum noise levels

24V PWM version

Ideal upgrade fan for 3D printing and other 24V applications

24V version, not for use in PCs.
Key specifications
Size (Form factor)
40 x 40 x 10 mm
Speed range
0 – 5000 rpm
Airflow (max.)
8.9 m³/h (5.24 CFM)
Acoustical noise (max.)
19.6 dB(A)
Static pressure (max.)
1.95 mm H₂O
Rated voltage
24 V
Connector
4-pin
Colour
Brown
Warranty
6 years
Scope of delivery
  • NA-AC9 4-pin molex to 2-pin adaptor cable
  • OmniJoin™ adaptor set
  • NA-EC1 30cm extension cable
  • NA-RC8 Low-Noise Adaptor (L.N.A.)
  • 4x NA-AV3 anti-vibration mounts
  • Fan screws

Extended specifications

Mechanical specifications
Dimensions without anti-vibration pads
40 x 40 x 11 mm
Dimensions with anti-vibration pads
40 x 40 x 12 mm
Mounting hole spacing(s)
32 x 32 mm
Weight
15 g
Material frame
PBT GF30
Material impeller
PBT GF30
Material anti-vibration pads
Silicone rubber
Bearing
SSO2
Rotational direction
Counter-clockwise
Frame colour
Beige
Impeller colour
Brown
Anti-vibration pads colour
Brown
Connector type
A2543-4PIN (or equal)
Cable length
200 mm
Cable length with extension cable (included)
500 mm
Wire
28 AWG
Sleeving
Fibreglass silicone mesh
Included adaptors
OmniJoin™, 2-pin JST-XHP-2 2.5mm
Performance specifications
Rotational speed (max.)
5000 rpm
Rotational speed @ 20% PWM
1050 rpm
Rotational speed @ 0% PWM
0 rpm
Acoustical noise (max.)
19.6 dB(A)
Airflow (max.)
8.9 m³/h (5.24 CFM)
Static pressure (max.)
1.95 mm H₂O
Electrical specifications
Motor type (phases)
Single phase
Poles
4
Slots
4
Driver IC
NE-FD5
Rated voltage
24 V
Starting voltage
14 V
Max. operating voltage
26.4 V
Pin configuration
Diagram showing the pin configuration for Noctua 24V fans. The 3-pin fan has yellow (RPM speed signal), red (+24V), and black (ground) wires. The 4-pin PWM fan has blue (PWM signal), green (RPM speed signal), yellow (+24V), and black (ground) wires.
Pin 1
Black: Ground (GND)
Pin 2
Yellow: Voltage (Vcc)
Pin 3
Green: RPM Signal
Pin 4
Blue: PWM Signal
Input power (max)
1.08 W
Input current (max)
0.045 A
Safety, compliance & environmental specifications
Safety standards
EN62368-1
EMC standards
EN55032, EN55035
UL
CE
UKCA
TÜV
Production Standards
ISO 9001 & ISO 14001
Flammability
UL 94 V-0
REACH
RoHS
CMRT
EMRT
Ingress protection
IP50
Operating temperature
-10°C to +70°C
Operating humidity
15 – 90 %
Storage temperature
-20°C to +75°C
Storage humidity
15 – 90 %
MTTF
> 150,000 h
Locked rotor protection
Auto power off after locked at rated voltage for 1 sec. After auto power off, the circuit attempts to restart in 2 to 6 sec.
Polarity protection
Open circuit when Vcc & GND are exchanged. Circuit won't be burned within 5 sec when Vcc & GND are exchanged.
Over voltage protection
Over current protection
Insulation resistance
10 MΩ / between unshielded wire and frame at 500 VDC/min
Dielectric strength
5 mA max. / measured between lead wire (+) and frame at 500 VAC/min
Logistical specifications
Packaging dimensions
143 x 110 x 18 mm
Packaging weight (including product)
73 g
EAN
9010018100679
UPC
841501110672
Packaging unit
36 pcs
Packaging unit dimensions
450 x 240 x 140 mm
Packaging unit weight
3 kg