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.
The PB3N355B48H 355mm EC-DC Backward Curved Centrifugal Fan is specifically designed for air handling units (AHU) and modular air conditioning systems, including industrial-grade fresh air systems, large commercial air conditioning units, and cleanroom supply fan units.
Powered by advanced brushless DC (BLDC) / EC motor technology, this backward curved centrifugal fan features a linear current-torque and voltage-speed relationship. Compared to traditional AC induction motors, the EC motor delivers 30%–50% energy savings across all operating conditions. For large-scale ventilation equipment and data center cooling systems, this translates into significantly lower long-term energy costs — making it an ideal low power consumption fan for continuous-duty applications.
As a solution provider specializing in DC/EC motor and fan technologies for over 15 years, PBM ensures that the PB3N355B48H 355mm EC-DC Backward Curved Centrifugal Fan strictly complies with international safety standards, including CE, UL, and RoHS certifications. From demand analysis and model selection to prototype testing and mass production delivery, our technical team provides full engineering support throughout the entire project lifecycle.
Upgrade your HVAC system with the PB3N355B48H — where high static pressure meets ultra-low power consumption.
General Characters
|
1-1 |
Rated Voltage |
48 VDC |
|
1-2 |
Operating Voltage |
36~57 VDC |
|
1-3 |
Rated Speed |
1580 RPM |
|
1-4 |
Input Current |
3.4 A |
|
1-5 |
Input Power |
163 W |
|
1-6 |
Air Flow |
1530.10 CFM / 2600 M³/H |
|
1-7 |
Static Pressure |
1.95 inH2O / 487 Pa |
|
1-8 |
Acoustical Noise |
69 dB(A) |
|
1-9 |
Life Expectance |
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 |
Ø355 mm X 171.5 mm (see dimension drawing) |
|
2-2 |
Material of Impeller |
Aluminium Sheet |
|
2-3 |
Number of Blades |
6 |
|
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 (48VDC)
Temperature-----Room temperature
Humidity---------65%RH
Outline Drawing
Note:
1.Connection line:DC(4×AWG20#)
2.DC: Red=Voltage Intput 48VDC, Yellow=0-10VDC/PWM, White=FG, Blue=GND;
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