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 PB3N450B4E-ZW5 450mm IP55 EC-AC Backward Curved Centrifugal Fan is specifically engineered for large air handling units (AHU) covering central air conditioning systems, industrial plant ventilation, and commercial building air exchange, as well as industrial ventilation systems (factory exhaust, material drying air supply), data center cooling systems, and energy recovery ventilation systems (ERV/HRV) — delivering high-efficiency AC-driven performance in heavy-duty industrial ventilation scenarios requiring ultra-high airflow with waterproof and dustproof protection.
With over 15 years of expertise in EC/AC motor and fan technologies, PBM ensures that our centrifugal fans strictly comply with CE, UL, and RoHS international safety standards. From demand analysis and model selection to prototype testing and mass production delivery, our technical team provides complete engineering support. Customization services are available across multiple dimensions.
Choose the PB3N450B4E-ZW5 for a high static pressure, low noise, IP55 EC-AC backward curved centrifugal fan for your most demanding large AHU, industrial, data center, and ERV/HRV applications.
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 | 1800 RPM |
|
1-5 |
Input Current |
1.5 A |
|
1-6 |
Input Power |
1000 W |
|
1-7 |
Air Flow |
4237.20 CFM / 7200 M³/H |
|
1-8 |
Static Pressure |
2.80 inH2O / 700 Pa |
|
1-9 |
Acoustical Noise |
83 dB(A) |
|
1-10 |
Life Expectance |
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 |
IP55 |
|
1-17 |
Signal Output |
FG (Frequency Generator) |
Mechanical Characters
|
2-1 |
Dimension |
Ø455 mm X 304 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 |
AC (AWG18#)，DC (AWG24#) |
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(6×AWG18#)，DC(6×AWG24#)
2.AC: Brown=L1(R)，Blue=L2(S)，Black=L3(T)，Green & Yellow=Protecting Earthing,White=NC，Gray=COM;
3.DC: Red=Voltage Output +10VDC, Yellow=0-10VDC/PWM, Blue=GND, White=Tach output, Brown=RSA,Gray=RSB ;
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