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 PB3N280B2E-MZ0 280mm IP55 EC-AC Backward Curved Centrifugal Fan is an ultra-high static pressure fan platform specifically engineered for precision air conditioning systems including computer room air conditioners (CRAC) for IT and electronics industries, precision air conditioners for data centers, and server rack-level cooling systems. 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 over 90%. Compared to traditional AC induction motors, the EC motor delivers 30%–50% energy savings across all operating conditions, significantly reducing long-term energy costs for critical cooling applications.
With over 15 years of expertise in EC/AC motor and fan technologies, PBM offers fully customized solutions across multiple dimensions. Throughout the whole project lifecycle, our technical team offers comprehensive engineering assistance, from demand research and model selection to prototype testing and mass production delivery. In harsh conditions requiring water jet resistance and dust protection, the IP55 protection grade guarantees dependable performance.
Choose the PB3N280B2E-MZ0 for a high static pressure, low noise, and energy-saving IP55 EC-AC backward curved centrifugal fan that drives your most essential precision 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 | 2600 RPM |
|
1-5 |
Input Current |
1.5 A |
|
1-6 |
Input Power |
210 W |
|
1-7 |
Air Flow |
1177.00 CFM / 2000 M³/H |
|
1-8 |
Static Pressure |
3.20 inH2O / 800 Pa |
|
1-9 |
Acoustical Noise |
70 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 |
Ø281 mm X 119 mm (see dimension drawing) |
|
2-2 |
Material of Impeller |
Cold rolled steel sheet |
|
2-3 |
Number of Blades |
11 |
|
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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