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 PB3N133B48-RB0 133mm IP55 EC-DC Backward Curved Centrifugal Fan (Φ133×110mm) is specifically engineered for HVAC systems, air purification equipment, telecom and power cabinet cooling, and building ventilation — delivering fully sealed, safety extra-low voltage (SELV) high-efficiency, energy-saving performance in demanding ventilation scenarios requiring high static pressure with IP55 full-sealed protection.
Rated at 48V DC with 5,000 RPM speed, this backward curved centrifugal fan delivers 420 m³/h of stable airflow and an ultra-high static pressure of 750 Pa, ensuring reliable operation in critical environments.
With Class B insulation providing ample electrical safety margin for motor windings under high-temperature operation, this fan operates across a wide temperature range of -25°C to 60°C (storage: -40°C to 75°C) and a broad humidity range of 5% to 95% RH — making it capable of handling demanding conditions from cold climates to high-temperature industrial environments.
General Characters
|
1-1 |
Rated Voltage |
48 VDC |
|
1-2 |
Operating Voltage |
36~57 VDC |
|
1-3 |
Rated Speed |
5000 RPM |
|
1-4 |
Input Current |
1.05 A |
|
1-5 |
Input Power |
50 W |
|
1-6 |
Air Flow |
247.17 CFM / 420 M³/H |
|
1-7 |
Static Pressure |
3.00 inH2O / 750 Pa |
|
1-8 |
Acoustical Noise |
71 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 |
Ø133 mm X 110 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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