
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.
280mm IP55 EC Backward Curved Centrifugal Fan PB3N280B2E-YZ5 was created especially for Precision DC Air Conditioners used in IT and Electronic Industry. It offers considerable energy savings over conventional AC asynchronous motors because to its high-efficiency EC motor, which is based on a brushless DC motor and uses electronic commutation technology to enable accurate and efficient energy conversion. It easily overcomes the cumulative resistance of high-efficiency filters, dense coil arrays, and long-distance air supply ducts in precision air conditioning systems with its ultra-high static pressure output of up to 1600 Pa, guaranteeing steady airflow output even in high static pressure situations. For meeting the demanding air supply needs of different precision air conditioning systems, it is the perfect core power source.
PMB specializes in the development and production of superior EC/DC fans and intelligent airflow solutions, supporting products like precision air conditioners for computer rooms, constant temperature and humidity chambers for laboratories, and constant temperature and humidity precision air conditioners. There is support for OEM customization services.
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 | 3300 RPM |
|
1-5 |
Input Current |
3.1 A |
|
1-6 |
Input Power |
700 W |
|
1-7 |
Air Flow |
2189.22 CFM / 3720 M³/H |
|
1-8 |
Static Pressure |
6.4 inH₂O / 1600 Pa |
|
1-9 |
Acoustical Noise |
85 dB(A) |
|
1-10 |
Life Expectancy |
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 |
Ø283 mm X 225.5 mm (see dimension drawing) |
|
2-2 |
Material of Impeller |
Aluminium sheet |
|
2-3 |
Number of Blades |
8 |
|
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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