Discontinued
NF-B9 PWM
92x25mm fan
Proven NF-B9 design
Tens of thousands swear by the classic NF-B9
SSO Bearing
Time-tested SSO-Bearing for exceptional long-term stability
4-pin PWM version
For automatic speed control
Key specifications
Size (Form factor) | 92 x 92 x 25 mm |
Speed range | 0 – 1600 rpm |
Airflow (max.) | 64.3 m³/h (37.85 CFM) |
Acoustical noise (max.) | 17.6 dB(A) |
Static pressure (max.) | 1.61 mm H₂O |
Rated voltage | 12 V |
Connector | 4-pin |
Colour | Brown |
Warranty | 6 years |
Scope of delivery
- NA-RC7 Low-Noise Adaptor (L.N.A.)
- NA-YC1 4-pin PWM splitter cable
- NA-EC1 30cm extension cable
- 4x NA-AV1 anti-vibration mounts
- 4x fan screws
Extended specifications
Mechanical specifications
Dimensions without anti-vibration pads | 92 x 92 x 25 mm |
Frame shape | Square |
Mounting hole spacing(s) | 82.5 x 82.5 mm |
Weight | 80 g |
Material frame | PBT GF30 |
Material impeller | PBT GF30 |
Bearing | SSO |
Rotational direction | Counter-clockwise |
Frame colour | Beige |
Impeller colour | Brown |
Connector type | A2543-4PIN (or equal) |
Cable length | 400 mm |
Wire | 26 AWG |
Sleeving | Fibreglass silicone mesh |
Performance specifications
Rotational speed (max.) | 1600 rpm |
Rotational speed with LNA (max.) | 1300 rpm |
Rotational speed @ 20% PWM | 400 rpm |
Rotational speed @ 0% PWM | 0 rpm |
Acoustical noise (max.) | 17.6 dB(A) |
Airflow (max.) | 64.3 m³/h (37.85 CFM) |
Airflow with LNA (max.) | 52.6 m³/h (30.96 CFM) |
Static pressure (max.) | 1.61 mm H₂O |
Static pressure with LNA (max.) | 1.09 mm H₂O |
Electrical specifications
Motor type (phases) | Single phase |
Poles | 4 |
Slots | 4 |
Driver IC | NE-FD1 |
Rated voltage | 12 V |
Starting voltage | 7 V |
Max. operating voltage | 13.2 V |
Pin configuration |  |
Pin 1 | Black: Ground (GND) |
Pin 2 | Yellow: Voltage (Vcc) |
Pin 3 | Green: RPM Signal |
Pin 4 | Blue: PWM Signal |
Safety, compliance & environmental specifications
Safety standards | EN62368-1 |
EMC standards | EN55032, EN55035 |
UL | |
CE | |
UKCA | |
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 % |
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 | 210 x 150 x 34 mm |
Packaging weight (including product) | 250 g |
EAN | 4716123314738 |
UPC | 842431014085 |
Packaging unit | 40 pcs |
Packaging unit dimensions | 390 x 380 x 360 mm |
Packaging unit weight | 10.52 kg |