FOCUS ON EC FAN ONLY
PBM FOCUS ON EC FAN ONLY. Certificate: CE,UL,ROHS; Supply Ability: 100,000 pcs per year; MOQ: 1~100 pcs based on EXW price; 100 pcs above based on FOB price.
280mm EC Dual Inlet Blower made especially for air purification and HVAC systems is the PD3N280B4EM. Supply and return air modules in AHUs (Air Handling Units), indoor-outdoor air exchange and heat recovery units in fresh air ventilation systems, and airflow drive systems for high-efficiency filtration units in commercial/industrial air purification equipment all benefit from the dual-inlet design, which also successfully lowers operating noise, balances airflow distribution, and increases the unit is energy efficiency ratio. The fan easily satisfies the demanding ventilation requirements of commercial and industrial applications by utilizing the large-diameter dual-inlet impeller's massive airflow and high static pressure to provide stable and dependable airflow dynamics across a variety of HVAC and air purification systems. This design lowers air resistance and guarantees consistent airflow distribution inside the volute. It produces far more airflow, more even distribution, and less vibration than single-inlet fans running at the same speed. The NMB ball bearing system guarantees maintenance-free operation during extended continuous operation, greatly lowering the lifecycle operational and maintenance costs of HVAC equipment fleets when paired with integrated motor protection features like stall protection, polarity protection, and automatic restart.
On request, we provide OEM customization services that include improved protection ratings (up to IP55), corrosion-resistant surface treatments, compatibility with silencer/filter box accessories, and adjustable outlet angles (0°, 90°, 180°, and left-hand and right-hand rotation options). PBM is your one-stop shop for HVAC and air purification airflow solutions, not simply a maker of fans.
General Characters
|
1-1 |
Rated Voltage |
380 VAC |
|
1-2 |
Frequency |
50/60 Hz |
|
1-3 |
Operating Voltage |
304~456 VAC |
|
1-4 |
Rated Speed | 800 RPM |
|
1-5 |
Input Current |
1.1 A |
|
1-6 |
Input Power |
600 W |
|
1-7 |
Air Flow |
2412.85 CFM / 4100 M³/H |
|
1-8 |
Static Pressure |
3.56 inH₂O / 890 Pa |
|
1-9 |
Acoustical Noise |
72 dB(A) |
|
1-10 |
Life Expectancy |
50,000 Hours (L10) At 40℃ room, humidity 15%~65%RH. |
|
1-11 |
Insulation Class |
Class F |
|
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 |
416 mm X 455 mm X 340 mm (see dimension drawing) |
|
2-2 |
Material of Impeller |
Galvanized metal shell |
|
2-3 |
Number of Blades |
38 |
|
2-4 |
Bearing System |
NMB ball bearing |
|
2-5 |
Lead Wire |
AC (AWG18 #), 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 (380VAC/50Hz)
Temperature-----Room temperature
Humidity---------65%RH
Outline Drawing
Note:
1.Connection line: AC(3×AWG18#)，DC(4×AWG22#)
2.AC: Brown=L1(R)，Blue=L2(S)，Black=L3(T)，Green & Yellow=Protecting Earthing;
3.DC: Red=Voltage Output +10VDC, Yellow=0-10VDC/PWM, White=FG, Blue=GND;
If you have any interest in our products,please feel free to contact us & we are ready to serve you
By continuing to use the site you agree to our privacy policy Terms and Conditions.
