FOCUS ON EC FAN ONLY
The PF3N120B2EH 120mm EC Forward Curved Centrifugal Fan is a high-efficiency air supply device intended for low to medium static pressure systems in cleanrooms, electronic equipment cooling, intelligent fresh air systems, air purification equipment, and precision air conditioning. Its forward-curved impeller design satisfies the combined objectives of "thin, low-noise, and fast-response" in smart homes and industrial ventilation by enabling quick airflow establishment and uniform distribution inside constrained locations. Compared to conventional AC asynchronous motors, it achieves an operating efficiency of over 90% by cleverly integrating EC motor technology (electronically commutated brushless DC motor) with an AC input interface. This results in a 30% to 50% reduction in energy consumption, with especially notable energy-saving benefits under partial load conditions.
For more than 15 years, PMB has concentrated on EC/DC motor and fan technologies. Our customization services cover a wide range of dimensions: lead wire length, connector type, and FG speed feedback signal configuration can all be tailored to achieve seamless integration with your control system; impeller length and mounting flange design can be adjusted according to equipment enclosure dimensions; speed control curves and 0-10V/PWM control parameters can be optimized according to particular thermal load characteristics. PBM's technical sales team will offer you complete engineering support from sample confirmation to mass production delivery, combining the dependability of standard products with the flexibility of customized products, whether you are creating precision air conditioning (computer room air conditioning) units, air purification equipment, intelligent fresh air systems, or medical cleanroom ventilation equipment.
General Characters
|
1-1 |
Rated Voltage |
230 VAC |
|
1-2 |
Frequency |
50/60 Hz |
|
1-3 |
Operating Voltage |
184~270 VAC |
|
1-4 |
Rated Speed | 2488 RPM |
|
1-5 |
Input Current |
0.53 A |
|
1-6 |
Input Power |
61 W |
|
1-7 |
Air Flow |
158.90 CFM / 270 M³/H |
|
1-8 |
Static Pressure |
1.32 inH₂O / 330 Pa |
|
1-9 |
Acoustical Noise |
65 dB(A) |
|
1-10 |
Life Expectancy |
50,000 Hours (L10) At 40℃ room, humidity 15%~65%RH. |
|
1-11 |
Insulation Class |
Class B |
|
1-13 |
Motor Protection |
Locked rotor protection Polarity protection Automatic restart capability |
|
1-14 |
Speed Control |
Control input 0~10VDC / PWM |
|
1-15 |
Protection Type |
IP44 |
|
1-17 |
Signal Output |
FG (Frequency Generator) |
Mechanical Characters
|
2-1 |
Dimension |
Ø120 mm X 98 mm (see dimension drawing) |
|
2-2 |
Material of Impeller |
Galvanized metal shell |
|
2-3 |
Number of Blades |
34 |
|
2-4 |
Bearing System |
NMB ball bearing |
|
2-5 |
Lead Wire |
AC (AWG20#), DC (AWG22 #) |
Environmental Characters
|
3-1 |
Operating Temperature |
-25℃ to 60℃ |
|
3-2 |
Storage Temperature |
-40℃ to 75℃ |
|
3-3 |
Operating Humidity |
5% to 90% RH |
|
3-4 |
Storage Humidity |
5% to 95% RH |
Performance Curve
Testing Condition:
Input Voltage----Operating voltage (230VAC/50Hz)
Temperature-----Room temperature
Humidity---------65%RH
Outline Drawing
Note:
1.Connection line: AC(3×AWG20#)，DC(4×AWG22#)
2.AC: Brown=Live Line，Blue=Null Line，Green & Yellow=Protecting Earthing;
3.DC: Red=Voltage Output +10VDC, Yellow=0-10VDC/PWM, White=FG, Blue=GND;
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