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.
280mm DC backward centrifugal fan made especially for dissipating heat in energy storage systems and new energy battery cabinets is the PB3N280B48M. With a high static pressure of 680 Pa and a high airflow of up to 1680 m³/h, powered by 48V DC, it can easily overcome the resistance of the tiny airflow channels between battery clusters and dust filters, guaranteeing a consistent cell temperature. IP44 protection adjusts to the complicated environment of energy storage containers, and the total device uses about 150W with noise levels below 75 dB(A). It is the perfect heat dissipation option for industrial and commercial energy storage, base station backup power, and other situations because it supports 0-10V/PWM speed regulation, can modify airflow as needed in conjunction with a BMS system, and combines energy efficiency with a long lifespan (50,000 hours).
General Characters
|
1-1 |
Rated Voltage |
48 VDC |
|
1-2 |
Operating Voltage |
36~57 VDC |
|
1-3 |
Rated Speed |
2600 RPM |
|
1-4 |
Input Current |
4.8 A |
|
1-5 |
Input Power |
230.4 W |
|
1-6 |
Air Flow |
1213 CFM / 1930 M³/H |
|
1-7 |
Static Pressure |
4.12 inH₂O / 740 Pa |
|
1-8 |
Acoustical Noise |
74 dB(A) |
|
1-9 |
Life Expectancy |
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 |
IP44 |
|
1-15 |
Signal Output |
FG (Frequency Generator) |
Mechanical Characters
|
2-1 |
Dimension |
Ø280 mm X 99 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 |
DC (AWG20 #) |
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:DC(4×AWG20#)
2.DC: Red=Voltage Intput 48VDC, Yellow=0-10VDC/PWM, White=FG, Blue=GND;
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