PBM Motor and Fan (Suzhou) Co., Ltd. is one of the most reliable manufacturers and suppliers of 280mm ec-ac backward curved centrifugal fan pb3n280b2eh 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 280mm ec-ac backward curved centrifugal fan pb3n280b2eh, welcome to get pricelist from our factory.
Upgrades to protection levels, customized wire designs, customized communication protocols, and unique installation structures are just a few of the customizable services that PMB provides. PBM assists telecommunications operators, equipment integrators, and outdoor infrastructure clients in achieving more effective, dependable, and energy-efficient thermal management for contemporary communication infrastructure with its outstanding EC backward-curved centrifugal fan technology.
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 | 2760 RPM |
|
1-5 |
Input Current |
1.75 A |
|
1-6 |
Input Power |
390 W |
|
1-7 |
Air Flow |
1647.80 CFM / 2800 M³/H |
|
1-8 |
Static Pressure |
3.58 inH₂O / 895 Pa |
|
1-9 |
Acoustical Noise |
80 dB(A) |
|
1-10 |
Life Expectancy |
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 |
IP44 |
|
1-17 |
Signal Output |
FG (Frequency Generator) |
Mechanical Characters
|
2-1 |
Dimension |
Ø280 mm X 173 mm (see dimension drawing) |
|
2-2 |
Material of Impeller |
Galvanized metal shell |
|
2-3 |
Number of Blades |
11 |
|
2-4 |
Bearing System |
NMB ball bearing |
|
2-5 |
Lead Wire |
AC (AWG18 #), DC (AWG22 #) |
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×AWG18#),DC(4×AWG22#)
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;
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