• Ofan Electric Co., Ltd
    Mark Aramli
    OFAN' products are so reliable ,good quality,This is much more durable High-end product
  • Ofan Electric Co., Ltd
    Jimmy K.y.yap
    OFAN advanced design,good supervision of production , good package
  • Ofan Electric Co., Ltd
    Andry Andika
    OFAN' Pay attention to details,good production line,durable
Contact Person : Walter Chen
Phone Number : +86-13760806200
WhatsApp : +8613760806200

Multi Blades Dc Ventilation Fan , Brushless Motors Industrial Cooling Fans

Place of Origin China
Brand Name OFAN
Certification CE,UL,3C
Model Number LD220N-48D3-00
Minimum Order Quantity 1
Price $10~30/pcs
Packaging Details 65*65*70
Delivery Time 5-8 word days
Payment Terms L/C, T/T
Supply Ability 10000pcs20days

Contact me for free samples and coupons.

WhatsApp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

Product Details
Rated Voltage 48V Rated Speed 2800RPM
Air Flow 972m³/h Power 77W
Current 1.6A Operation Voltage 36-56V
High Light

brushless dc fan


dc centrifugal blower

Leave a Message
Product Description

Intead Of EBM 190mm DC Centrifugal Fan With Eshaust Ventilation PA66


Power Rated
Part NO. VDC VDC A W RPM m³/h CFM mmH2O dBA
LD220N-48D3-00 48 36~56 1.5 72 3000 972 573 41.5 70
LD220N-24D3-00 24 16~28 3.3 79 3000 972 573 36.8 65









There is no support for forward curved multi-blades centrifugal fan from 133mm-250mm. Other model have the support. And there is no current collector for backward curved impeller centrifugal fan. You need to inform us if you want the support or current collector for fan model, clarify the fan model, specification, air volume and static pressure before placing an order. Forward curved multi-blades centrifugal fan and back curved impeller centrifugal fan, please take note on the air direction


Although OFAN, the market leader in EC technology, is a China company, EC has nothing to do with the European Community! In this case, EC stands for Electronically Commutated which basically means it is a fan with a brushless DC motor


Brushless DC motors have been around for many years but there has always been the need for a separate DC power supply. In applications using only an AC supply this introduced added cost and complexity. Then, in 2003, ebm-papst brought out an EC fan with integrated electronics which could be connected directly to an AC mains supply. In addition to performing the commutation, the electronics convert AC to DC and control the fan speed by regulating the power to the motor.


EC motor features reverse polarity protection, locked rotor protection and soft start.

No additional protection such as contactors are required.

Can be pre-configured to suit specific sensors and applications, and are supplied standard with 0-10V control input.

A full range of sensors are available including differential pressure, humidity, temperature, air velocity and pollutant



1.How do I know which model I should choose

Please tell us the fans pressure and ofan and size of fans’ diameter you need. We will study and suggest you the right model.

2. Can we buy a sample for testing?

Sure, you are welcomed to buy a sample before mass order.

3. if the fans doesn't work well, what shall I do ?

If happens within one year, we will take in charge of the maintenance, or send you a new machine freely.


Air performance curves

Our performance curves are tested in test camber according to DIN 24163 and refer to an air density of 1.2kg/M3. Testing conducted with inlet cone in airflow direction A, without protection guard



Multi Blades Dc Ventilation Fan , Brushless Motors Industrial Cooling Fans 0