• 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

2150RPM EC Centrifugal Fans For Roof Ventilation Fan 280MM

Place of Origin China
Brand Name OFAN
Certification CE ROHS
Model Number LD280C-230D3-01
Minimum Order Quantity 1pcs
Price negotiation
Packaging Details 45*45*24
Delivery Time 5-8 work days
Payment Terms L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability 10000PCS

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Product Details
Power 170W Rated Speed 2150RPM
Air Flow 1900m³/h Nominal Voltage 230V
Type LD280C-230D3-01 Current Draw 1.2A
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2150RPM EC Centrifugal Fans


1900m3/h EC Centrifugal Fans


1.2A centrifugal blower fan

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Product Description

Speed 2150RPM EC Centrifugal Fans For Roof Ventilation Fan 280MM



Nomual voltage






Power imput


Curreng draw


Sound pressurelevel


LD280C-230D3-01 230 50/60 2150 170 1.2 60





Power factor correction(PFC): Passive and active(IEC61000-3-2)


Soft start, adjustable acceleration, CVT


Design operating temperature range: -30~60 degrees of minimum selection(The device in accordance with -40~85 degrees)


Protection: over voltage, over temperature, over current, phase loss detection, communication failures.


The basic interface: 0-10V/PWM, RS485/Modbus, 4-20Ma


The basic parameters of field programmable: Maximum speed, minimum speed, maximum power,


Let’s assume a laminar flow workstation requiring 13200m³/h at 450Pa. This requires 4 off Ø315 backward curved fans.


Now let us assume that this workstation operates for 50 weeks of the year and for 8 hours per day at full speed. During non working hours to


maintain the work area, the fans are run at roughly half the airflow.

AC fan 2800hrs @ 4 x 1.41kW = 5.64kW 15,792 kWh
5600hrs @ 4 x 0.62kW = 2.48kW 13,888 kWh
Total A 29,680 kWh
EC fan 2800 hrs @ 4 x 1.04kW = 4.16kW 11,648 kWh
5600 hrs @ 4 x 0.27kW = 1.08kW 6,048 kWh
Total B 17,696 kWh
A minus B 11,984kWh saved with the EC fan


aster/Slave : This system is used when several fans are used together within a single application. The main fan (Master) is individually pressure


controlled. The other fans (slaves) are then speed controlled by the Master fan : Slave Fans are always at the speed of the master fan (Rosenberg Versions only).

Safe-common necessity of company and customers


Excellent –worker and product


Efficiency-worker and produc

1. Why choose OFAN not others?

a. OFAN is a real manufacturer within 10000 sqm workshop for fans R&D, production.
b.The best engineer team in China, chief engineer was trained in Japan.
c.The best electric components imported from world top three suppliers.
d.OEM production available.

2.  How about delivery time?

a. Sample order below 10 pieces, we could make dispatch within 10 days.
b. Within four production lines we could supply 1000 fans each day.

3. What kind of payments do you support?

T/T, L/C, other kind of payment please contact with us

4. What's the MOQ?

1 piece sample fan. We believe our fan quality must satisfy customer.





2150RPM EC Centrifugal Fans For Roof Ventilation Fan 280MM 0