PBM Motor and Fan (Suzhou) Co., Ltd. is one of the most reliable manufacturers and suppliers of 250mm ec-dc waterproof ip55 backward curved centrifugal fan pb3n250b48-rz0 in China. With abundant experience, we are committed to providing high quality customized products with competitive price. If you're going to buy bulk premium 250mm ec-dc waterproof ip55 backward curved centrifugal fan pb3n250b48-rz0, welcome to get pricelist from our factory.
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;
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