Discontinued
NF-S12B ULN
120x25mm fan
Classic 12cm airflow-focused design
Designed for efficient case ventilation
SSO Bearing
Time-tested SSO-Bearing for exceptional long-term stability
3-pin ULN version
Provides 700/500rpm speed settings via Low-Noise Adaptors
Key specifications
Size (Form factor) | 120 x 120 x 25 mm (square) |
Speed range | 0 – 700 rpm |
Airflow (max.) | 56.9 m³/h (33.49 CFM) |
Acoustical noise (max.) | 6.8 dB(A) |
Static pressure (max.) | 0.44 mm H₂O |
Rated voltage | 12 V |
Connector | 3-pin |
Colour | Brown |
Warranty | 6 years |
Scope of delivery
- NA-RC4 Ultra-Low-Noise Adaptor (U.L.N.A.)
- 4x NA-AV1 anti-vibration mounts
- NA-AC0 adaptor cable
- 4x fan screws
Extended specifications
Mechanical specifications
Dimensions without anti-vibration pads | 120 x 120 x 25 mm |
Frame shape | Square |
Mounting hole spacing(s) | 105 x 105 mm |
Bearing | SSO |
Rotational direction | Counter-clockwise |
Frame colour | Beige |
Impeller colour | Brown |
Cable length | 400 mm |
Sleeving | Fibreglass silicone mesh |
Included adaptors | P-ATA (Molex) |
Performance specifications
Rotational speed (max.) | 700 rpm |
Rotational speed with ULNA (max.) | 500 rpm |
Acoustical noise (max.) | 6.8 dB(A) |
Acoustical noise with ULNA (max.) | 5 dB(A) |
Airflow (max.) | 56.9 m³/h (33.49 CFM) |
Airflow with ULNA (max.) | 38.2 m³/h (22.48 CFM) |
Static pressure (max.) | 0.44 mm H₂O |
Static pressure with ULNA (max.) | 0.23 mm H₂O |
Electrical specifications
Motor type (phases) | Single phase |
Poles | 4 |
Slots | 4 |
Rated voltage | 12 V |
Max. operating voltage | 13.2 V |
Pin configuration |  |
Pin 1 | Black: Ground (GND) |
Pin 2 | Red: Voltage (Vcc) |
Pin 3 | Yellow: RPM Signal |
Input power (max) | 0.6 W |
Input current (max) | 0.05 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
EAN | 4716123313311 |
Packaging unit | 40 pcs |