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 PB3N250B48-RZ0 Φ250×99mm IP55 EC-DC Backward Curved Centrifugal Fan is designed for air handling units (AHU) , fan filter units (FFU) , cleanroom systems , and fresh air ventilation equipment — delivering 1170 m³/h airflow and 630 Pa static pressure at 48V DC and 2000 RPM with safety extra-low voltage (SELV) and energy-efficient output in demanding ventilation scenarios requiring high static pressure with waterproof and dustproof protection.
Powered by advanced brushless DC motor technology, this backward curved centrifugal fan delivers 30%–50% energy savings compared to traditional AC induction motors, with only 86.4 W input power and 1.8 A current draw.
With over 15 years of expertise in EC/DC motor and fan technologies, PBM manufactures backward curved centrifugal fans that strictly comply with CE, UL, and RoHS international safety standards, with full OEM and ODM services available.
Choose the PB3N250B48-RZ0 for a high static pressure, low noise, IP55 EC-DC backward curved centrifugal fan for your most demanding AHU, FFU, cleanroom, and fresh air applications.
General Characters
|
1-1 |
Rated Voltage |
48 VDC |
|
1-2 |
Operating Voltage |
36~57 VDC |
|
1-3 |
Rated Speed |
2000 RPM |
|
1-4 |
Input Current |
1.8 A |
|
1-5 |
Input Power |
86.4W |
|
1-6 |
Air Flow |
688.55 CFM / 1170 M³/H |
|
1-7 |
Static Pressure |
2.52 inH2O / 630 Pa |
|
1-8 |
Acoustical Noise |
68 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 |
IP55 |
|
1-15 |
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 |
Red, Blue(AWG18#)；Yellow, White(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 (48VDC)
Temperature-----Room temperature
Humidity---------65%RH
Outline Drawing
Note:
1.Connection line: Red, Blue(AWG18#)；Yellow, White(AWG24#)
2.DC: Red=Voltage Intput 48VDC, 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
By continuing to use the site you agree to our privacy policy Terms and Conditions.
