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.
310mm DC Backward Curved Centrifugal Fan made especially for Air Doors and Air Curtains is the PB3N310B24M. When compared to conventional AC asynchronous motors, it delivers 30%–50% energy savings thanks to its high-efficiency DC brushless motor. Its minimal waste heat feature ensures that the insulating performance of the air curtain is not impaired and actually achieves energy savings by preventing the fan's own heat from further heating the interior environment. The technology of EC motors is entirely compatible. After the door is opened, it swiftly establishes a jet airflow strong enough to resist the pressure differential between interior and outside, significantly increasing the air curtain device's initial efficacy. It is also energy-efficient and has a quick reaction time.
PBM specializes in the development and production of superior EC/DC fans and intelligent airflow solutions that support commercial air curtain machines, industrial door air curtains, cold storage air curtain systems, and different air damper control devices. When necessary, we may offer OEM customization services.
General Characters
|
1-1 |
Rated Voltage |
24 VDC |
|
1-2 |
Operating Voltage |
16~28 VDC |
|
1-3 |
Rated Speed |
1750 RPM |
|
1-4 |
Input Current |
5.6 A |
|
1-5 |
Input Power |
134.4 W |
|
1-6 |
Air Flow |
1206.43 CFM / 2050 M³/H |
|
1-7 |
Static Pressure |
1.96 inH₂O / 490 Pa |
|
1-8 |
Acoustical Noise |
67 dB(A) |
|
1-9 |
Life Expectancy |
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 |
IP44 |
|
1-15 |
Signal Output |
FG (Frequency Generator) |
Mechanical Characters
|
2-1 |
Dimension |
Ø 310 mm X 120 mm (see dimension drawing) |
|
2-2 |
Material of Impeller |
Aluminium Sheet |
|
2-3 |
Number of Blades |
6 |
|
2-4 |
Bearing System |
NMB ball bearing |
|
2-5 |
Lead Wire |
DC (AWG20 #) |
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:DC(4×AWG20#)
2.DC: Red=Voltage Intput 24VDC, Yellow=0-10VDC/PWM, White=FG, Blue=GND;
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