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.
220mm DC Backward Curved centrifugal fan made especially for Air Handling Unit(AHU) in Ventilation and Purification applications. This DC fan maintains great efficiency over a broad working range thanks to its 11-blade backward-curved design and high-efficiency DC brushless motor. Because the majority of pressure accumulation takes place inside the impeller, it reduces energy loss in the subsequent volute structure and produces a much higher aerodynamic efficiency than conventional forward-curved fans, making it especially appropriate for air handling units that must overcome high system resistance. It greatly lowers the long-term energy expenses of air handling equipment by 30% to 50% as compared to conventional AC asynchronous motors under all working situations. The backward-curved blade design reduces eddy current losses during airflow discharge at medium-high static pressure settings of 699 Pa, leading to smoother overall performance.
AHUs, cleanrooms, FFUs (fan-filter units), and other applications can benefit from this line of backward-curved centrifugal fans. When necessary, we may offer OEM customization services, such as silencer/filter box accessory adaptations, corrosion-resistant surface treatments, and protection level improvements (up to IP55). PBM offers airflow solutions for your air handling systems in addition to manufacturing fans.
General Characters
|
1-1 |
Rated Voltage |
24 VDC |
|
1-2 |
Operating Voltage |
16~28 VDC |
|
1-3 |
Rated Speed |
3150 RPM |
|
1-4 |
Input Current |
4.8 A |
|
1-5 |
Input Power |
115.2 W |
|
1-6 |
Air Flow |
620.87 CFM / 1055 M³/H |
|
1-7 |
Static Pressure |
2.80 inH₂O / 699 Pa |
|
1-8 |
Acoustical Noise |
76 dB(A) |
|
1-9 |
Life Expectancy |
50,000 Hours (L10) At 40℃ room, humidity 15%~65%RH. |
|
1-10 |
Insulation Class |
Class B |
|
1-11 |
Motor Protection |
Locked rotor protection Polarity protection Automatic restart capability |
|
1-13 |
Speed Control |
Control input 0~10VDC / PWM |
|
1-14 |
Protection Type |
IP44 |
|
1-15 |
Signal Output |
FG (Frequency Generator) |
Mechanical Characters
|
2-1 |
Dimension |
Ø220 mm X 71 mm (see dimension drawing) |
|
2-2 |
Material of Impeller |
PA6+GF |
|
2-3 |
Number of Blades |
7 |
|
2-4 |
Bearing System |
NMB ball bearing |
|
2-5 |
Lead Wire |
DC (AWG20 #) |
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 (24VDC)
Temperature-----Room temperature
Humidity---------65%RH
Outline Drawing
Note:
1.Connection line:DC(4×AWG20#)
2.DC: Red=Voltage Intput 24VDC, Yellow=0-10VDC/PWM, White=FG, Blue=GND;
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