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 PK3N250B2EH is a 250mm EC Centrifugal Fan with Support Bracket made especially for high-end integrated equipment and commercial exhaust systems, such as air curtain systems, large-space ventilation units, commercial range hoods, centralized exhaust systems for restaurant kitchens, industrial exhaust devices, and ERV (Exhaust Ventilation Refrigerant Units). Compared to traditional AC fans, it achieves 30%–50% efficiency thanks to a high-efficiency EC motor with integrated rectifier and inverter modules that is directly powered by 230V AC mains.
PBM's main values are precise manufacture and upscale, non-standard customizing. For mid-to-high-end engineering projects with constant aesthetic criteria, the black PK3N250B2EH has been independently optimized. The blackened metal exterior coating used throughout the device provides benefits including resistance to rust, corrosion, and white wiping streaks. PBM may offer mass customization of the black outside to satisfy the demands of commercial and exhaust equipment makers (core exterior design solutions can be flexibly extended into in-depth ODM procedures).
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 |
3550 RPM |
|
1-5 |
Input Current |
1.72 A |
|
1-6 |
Input Power |
387 W |
|
1-7 |
Air Flow |
1212.31 CFM / 2060 M³/H |
|
1-8 |
Static Pressure |
4.12 inH₂O / 1030 Pa |
|
1-9 |
Acoustical Noise |
80 dB(A) |
|
1-10 |
Life Expectancy |
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 |
IP44 |
|
1-17 |
Signal Output |
FG (Frequency Generator) |
Mechanical Characters
|
2-1 |
Dimension |
300mm X 300mm X 179mm (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 |
AC (AWG18 #), DC (AWG22 #) |
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×AWG18#)，DC(4×AWG22#)
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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