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 PB3N250B24-RZ0 250mm IP55 EC-DC Backward Curved Centrifugal Fan is specifically engineered for medical rehabilitation and physiotherapy equipment cooling systems, including rehabilitation therapy devices and physical therapy equipment that require long-term continuous operation. With 630 Pa high static pressure, this fan reliably overcomes resistance from multi-layer heatsink arrays and filter screens inside the equipment, ensuring core components operate within optimal temperature ranges.
Designed for demanding industrial ventilation scenarios requiring high static pressure, low noise, and waterproof and dustproof protection, this backward curved centrifugal fan delivers fully sealed, high-efficiency, energy-saving performance.
Powered by advanced brushless DC (BLDC) / EC motor technology, this fan delivers 30%–50% energy savings compared to traditional AC fans of the same size across all operating conditions, with input power of just 86.4 W and current of 3.6 A.
With over 15 years of expertise in DC/EC motor and fan technologies, PBM provides more than just standard fan assemblies — we offer complete industrial ventilation solutions throughout the entire R&D process. Customization services are available. For more information, please contact us via email.
Choose the PB3N250B24-RZ0 for a high static pressure, low noise, IP55 EC-DC backward curved centrifugal fan for your most demanding medical equipment cooling applications.
General Characters
|
1-1 |
Rated Voltage |
24 VDC |
|
1-2 |
Operating Voltage |
16~28 VDC |
|
1-3 |
Rated Speed |
2000 RPM |
|
1-4 |
Input Current |
3.6 A |
|
1-5 |
Input Power |
86.4 W |
|
1-6 |
Air Flow |
688.55 CFM / 1170 M³/H |
|
1-7 |
Static Pressure |
2.52 inH2O / 630 Pa |
|
1-8 |
Acoustical Noise |
68 dB(A) |
|
1-9 |
Life Expectance |
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 |
IP55 |
|
1-15 |
Signal Output |
FG (Frequency Generator) |
Mechanical Characters
|
2-1 |
Dimension |
Ø250 mm X 99 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 |
Red, Blue(AWG18#)；Yellow, White(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 (24VDC)
Temperature-----Room temperature
Humidity---------65%RH
Outline Drawing
Note:
1.Connection line: Red, Blue(AWG18#)； Yellow, White(AWG24#)
2.DC: Red=Voltage Intput 24VDC, Yellow=0-10VDC/PWM, White=FG, Blue=GND;
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