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 PB3N250B2E-TZ0 250mm IP55 EC-AC Backward Curved Centrifugal Fan (Φ250×99mm) is specifically engineered for air handling units (AHU), fan filter units (FFU), fresh air ventilation equipment, and cleanroom systems — delivering fully sealed, high-efficiency, energy-saving performance in demanding industrial ventilation scenarios requiring ultra-high static pressure with waterproof and dustproof protection.
Rated at 230V AC with 2,750 RPM speed, this backward curved centrifugal fan delivers an industry-leading 1,500 m³/h of ultra-high airflow and a top-tier 915 Pa of static pressure, ensuring stable and reliable operation in the most critical environments.
Powered by EC motor (electronically commutated brushless motor) technology, this fan delivers 30%–50% energy savings compared to traditional AC induction motors across all operating conditions, with input power of just 170 W and current of 1.2 A — fully compliant with ErP 2015 energy efficiency directive requirements.
With over 15 years of expertise in EC/AC motor and fan technologies, PBM ensures that our backward curved centrifugal fans strictly comply with CE, UL, and RoHS international safety standards. With an annual supply capacity of 100,000 units and EXW MOQ as low as 1–100 pcs (FOB pricing available for orders above 100 pcs), we are ready to support your business. Custom OEM services are available upon request — welcome to visit our factory in China.
Choose the PB3N250B2E-TZ0 for a high static pressure, low noise, IP55 EC-AC backward curved centrifugal fan for your most demanding AHU, FFU, and cleanroom 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 | 2750 RPM |
|
1-5 |
Input Current |
1.2 A |
|
1-6 |
Input Power |
170 W |
|
1-7 |
Air Flow |
882.75CFM / 1500 M³/H |
|
1-8 |
Static Pressure |
3.66 inH2O / 915 Pa |
|
1-9 |
Acoustical Noise |
71 dB(A) |
|
1-10 |
Life Expectance |
50,000 Hours(L10) At 40℃ room, humidity 15%~65%RH. |
|
1-11 |
Insulation Class |
Class B |
|
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 |
Ø250 mm X 99 mm (see dimension drawing) |
|
2-2 |
Material of Impeller |
PA66+GF |
|
2-3 |
Number of Blades |
7 |
|
2-4 |
Bearing System |
NMB ball bearing |
|
2-5 |
Lead Wire |
AC (AWG20#)，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(3×AWG20#)，DC(4×AWG24#)
2.AC: Brown=Live Line，Blue=Null Line，Green & Yellow=Protecting Earthing;
3.DC: Red=Voltage Output +10VDC, Yellow=0-10VDC/PWM, White=FG, Blue=GND;
If you have any interest in our products,please feel free to contact us & we are ready to serve you
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