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.
PK3N250B2E-SZ0 is a 250mm EC bracket fan made especially for agricultural ventilation systems and environmental dust removal. It can be used in a variety of industrial, agricultural, and forestry ventilation facilities, such as central dust collection systems, industrial dust collection units, grain dryer ventilation systems, grain storage ventilation, mushroom cultivation ventilation, exhaust air purification for livestock and poultry farming, and exhaust gas treatment systems. Because of its IP55 waterproof classification, which entirely protects it from dust, solid particles, and rainfall, the unit is ideal for exposed situations like grain silo roofs and outdoor dust extraction ducts. The terminal static pressure design of the backward-curved fan is perfect for maintaining proper negative pressure at collection locations through ductwork when employed as the power unit in central dust collection systems. This ensures collection efficiency well over 95% with minimum fine dust leakage. The system's environmental compliance certification benefits greatly from this.
PBM offers strong OEM and ODM mass production assistance for environmental dust removal and contemporary agricultural ventilation systems. It specializes in the R&D and production of premium EC/DC fans and intelligent airflow solutions.
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 | 2350 RPM |
|
1-5 |
Input Current |
0.85 A |
|
1-6 |
Input Power |
115 W |
|
1-7 |
Air Flow |
735.63 CFM / 1250 M³/H |
|
1-8 |
Static Pressure |
2.40 inH₂O / 600 Pa |
|
1-9 |
Acoustical Noise |
68 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 |
IP55 |
|
1-17 |
Signal Output |
FG (Frequency Generator) |
Mechanical Characters
|
2-1 |
Dimension |
300 mm X 300mm X 127.8mm (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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