PBM Motor and Fan (Suzhou) Co., Ltd. is one of the most reliable manufacturers and suppliers of 520mm ec-dc backward curved centrifugal fan pb3n520b4ep in China. With abundant experience, we are committed to providing high quality customized products with competitive price. If you're going to buy bulk premium 520mm ec-dc backward curved centrifugal fan pb3n520b4ep, welcome to get pricelist from our factory.
Powered by advanced EC motor technology, the fan provides significant energy savings compared with traditional AC motor solutions while maintaining precise speed control through 0-10VDC input. With a maximum airflow of 13213 m³/h and maximum static pressure of 1650 Pa, the PB3N520B4EP is suitable for AHU systems, ventilation equipment, air purification units, and other commercial and industrial air handling applications.
Designed with a metal impeller, 7 optimized blades, and a durable ball bearing system, this centrifugal fan ensures stable operation, low maintenance requirements, and long service life up to 50,000 hours (L10). The IP54 protection rating and multiple electrical protection functions provide reliable performance even in challenging operating environments.
PBM provides complete ventilation solutions with professional engineering support, covering product selection, technical consultation, sample validation, and mass production. Choose the PB3N520B4EP for an energy-efficient, high-performance backward curved centrifugal fan solution that meets modern HVAC and industrial ventilation requirements.
General Characters
|
1-1 |
Rated Voltage |
3～380 VAC |
|
1-2 |
Frequency |
50/60 Hz |
|
1-3 |
Operating Voltage |
380~460 VAC |
|
1-4 |
Rated Speed |
2200 RPM |
|
1-5 |
Input Current |
8.10 A |
|
1-6 |
Input Power |
4000 W |
|
1-7 |
Air Flow |
13213 M³/H |
|
1-8 |
Static Pressure |
1650 Pa |
|
1-9 |
Acoustical Noise |
85 dB(A) |
|
1-10 |
Life Expectance |
50,000 Hours(L10) At 40℃ room, humidity 15%~65%RH. |
|
1-11 |
Insulation Class |
Class F |
|
1-12 |
Motor Protection |
Locked rotor protection Polarity protection Automatic restart capability |
|
1-13 |
Speed Control |
Control input 0~10VDC |
|
1-14 |
Protection Type |
IEC 60529 IP54 |
|
1-15 |
Signal Output |
/ |
Mechanical Characters
|
2-1 |
Dimension |
510 mm X 510 mm X 371 mm (see dimension drawing) |
|
2-2 |
Material of Impeller |
Metal |
|
2-3 |
Number of Blades |
7 |
|
2-4 |
Bearing System |
Ball bearing |
|
2-5 |
Lead Wire |
/ |
Environmental Characters
|
3-1 |
Operating Temperature |
-20℃ to 55℃ |
|
3-2 |
Storage Temperature |
-40℃ to 70℃ |
|
3-3 |
Operating Humidity |
5% to 95% RH |
|
3-4 |
Storage Humidity |
0% to 95% RH |
Performance Curve
Testing Condition:
Input Voltage-----Operating voltage
Temperature-----Room temperature
Humidity---------65%RH
Standard---------AMCA 210
The air flow rate specified in the specification sheet is measured on PBM measurement equipment. The actual installed air flow rate may vary with changes in installation conditions.
In case of deviation from the standard air flow rate, the parameters must be verified on the installed equipment.
Outline Drawing
Note:
1.Connection line(L=1200±20):
2.AC: Brown=L1,Black=L2,Blue=L3,Green&Yellow=Protecting Earthing;
3.DC: Red=Voltage Output +10VDC, Orange=0-10VDC, Black=GND, Brown=FG.
4.Accessory part:Inlet ring IR-520,not include in the standard scope of delivery.
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