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 PB3N450B2E-ZW5 450mm IP55 EC-AC Backward Curved Centrifugal Fan (Φ450×304mm) is specifically engineered for air handling units (AHU), energy recovery ventilation systems (ERV/HRV), cleanroom systems, and data center cooling — delivering fully sealed, high-efficiency, energy-saving performance in heavy-duty industrial ventilation scenarios requiring ultra-high airflow with waterproof and dustproof protection.
Rated at 230V AC with 1,550 RPM speed, this backward curved centrifugal fan delivers an industry-leading 6,900 m³/h of ultra-high airflow and 650 Pa of high static pressure, ensuring stable and reliable operation in the most demanding environments.
Powered by EC motor (electronically commutated brushless motor) technology — built on the brushless DC motor platform with electronic commutation — this fan achieves precise and highly efficient energy conversion, delivering significant energy savings compared to traditional AC induction motors across all operating conditions.
With over 15 years of expertise in EC/AC motor and fan technologies, PBM provides complete engineering support from demand analysis and model selection to prototype testing and mass production delivery. Customization services are available across multiple dimensions.
Choose the PB3N450B2E-ZW5 for a high static pressure, low noise, IP55 EC-AC backward curved centrifugal fan for your most demanding AHU, ERV/HRV, cleanroom, and data center applications.
General Characters
|
1-1 |
Rated Voltage |
230 VAC |
|
1-2 |
Frequency |
50/60 Hz |
|
1-3 |
Operating Voltage |
184~270 VAC |
|
1-4 |
Rated Speed | 1550 RPM |
|
1-5 |
Input Current |
3.2 A |
|
1-6 |
Input Power |
700 W |
|
1-7 |
Air Flow |
4060.65 CFM / 6900 M³/H |
|
1-8 |
Static Pressure |
2.60 inH2O / 650 Pa |
|
1-9 |
Acoustical Noise |
80 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 (230VAC/50Hz)
Temperature-----Room temperature
Humidity---------65%RH
Outline Drawing
Note:
1.Connection line: AC(5×AWG18#)，DC(6×AWG24#)
2.AC: Brown=Live Line，Black=Null Line，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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