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 PB3N190B24-RZ0 190mm IP55 EC-DC Backward Curved Centrifugal Fan is a high-efficiency DC cooling solution specifically engineered for outdoor electrical enclosure cooling and telecom cabinet cooling. Rated at 24V DC with a wide operating voltage range of 16 to 28V DC and powered by advanced brushless DC motor technology, this backward curved centrifugal fan delivers an impressive 710 m³/h (417.84 CFM) of airflow and an ultra-high static pressure of 840 Pa (3.36 inH2O) at 3,500 RPM. The entire unit achieves an IP55 protection rating — fully dust-tight (preventing dust ingress) and resistant to sustained low-pressure water jets — ensuring reliable long-term operation in exposed environments such as rooftop equipment rooms, outdoor enclosures, and humid basements. This makes the PB3N190B24-RZ0 especially suitable for ventilation and purification applications as well as outdoor equipment applications that require tolerance to rain, dust, and moisture.
As a solution provider specializing in DC/EC motor and fan technologies for over 15 years, PBM supports the entire industrial ventilation development process — from demand analysis and model selection to prototype testing and mass production delivery — with complete engineering support throughout the entire project lifecycle. Customization services are available across multiple dimensions, including ingress protection (IP) rating upgrades, corrosion-resistant impeller treatment, customized lead wire specifications, and speed control parameter optimization.
Choose the PB3N190B24-RZ0 for a high static pressure, low noise, and energy-saving IP55 backward curved centrifugal fan that powers your most demanding outdoor and industrial cooling applications.
General Characters
|
1-1 |
Rated Voltage |
24 VDC |
|
1-2 |
Operating Voltage |
16~28 VDC |
|
1-3 |
Rated Speed |
3500 RPM |
|
1-4 |
Input Current |
3.6 A |
|
1-5 |
Input Power |
85 W |
|
1-6 |
Air Flow |
417.84 CFM / 710 M³/H |
|
1-7 |
Static Pressure |
3.36 inH2O / 840 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 |
Ø190 mm X 68.5 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 (24VDC)
Temperature-----Room temperature
Humidity---------65%RH
Outline Drawing
Note:
1.Connection line: Red, Blue(AWG18#)；Yellow, White(AWG24#)
2.DC: Red=Voltage Intput 24VDC, Yellow=0-10VDC/PWM, White=FG, Blue=GND;
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