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 PB3N190B2E-SZ0 190mm IP55 EC-AC Backward Curved Centrifugal Fan is a high-efficiency AC-driven cooling solution specifically engineered for ultra-high static pressure compact ventilation scenarios requiring waterproof and dustproof protection, such as outdoor telecom base station cabinet cooling and telecommunication equipment cooling including 5G base station outdoor cabinets, microwave communication equipment, and optical transmission equipment — delivering continuous and reliable equipment cooling in high-humidity, high-dust outdoor environments.
Powered by EC motor (electronically commutated brushless motor) technology — built on the brushless DC motor platform with electronic commutation — this backward curved centrifugal fan achieves precise and highly efficient energy conversion with motor efficiency reaching 80% to 90%. Compared to traditional AC induction motors, the EC motor delivers 30%–50% energy savings across all operating conditions, significantly reducing long-term cooling energy costs for outdoor enclosures and industrial equipment. The fan supports 0–10V DC / PWM dual-mode stepless speed control input for flexible system integration.
With over 15 years of expertise in EC/AC motor and fan technologies, PBM is a trusted solution provider offering fully ODM and OEM services. From demand analysis and model selection to prototype testing and mass production delivery, our technical team provides complete engineering support throughout the entire project lifecycle.
Choose the PB3N190B2E-SZ0 for a high static pressure, low noise, and energy-saving IP55 EC-AC backward curved centrifugal fan that powers your most demanding outdoor telecom and 5G equipment cooling applications.
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 | 3800 RPM |
|
1-5 |
Input Current |
0.8 A |
|
1-6 |
Input Power |
110 W |
|
1-7 |
Air Flow |
476.69 CFM / 810 M³/H |
|
1-8 |
Static Pressure |
3.40 inH2O / 850 Pa |
|
1-9 |
Acoustical Noise |
71 dB(A) |
|
1-10 |
Life Expectance |
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 |
IP55 |
|
1-17 |
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 |
AC (AWG20#)，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(3×AWG20#)，DC(4×AWG24#)
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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