Ofan Electric Co., Ltd |
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Resemble Ebm-past 133mm DC Centrifugal Fan With Fresh Air System Eqjipment Cooling
Listed Model | Rated Voltage | Operation Voltage | Rated Current | Power | Rated Speed | Air Flow | Air Flow | Air pressure | Noise Level |
Part NO. | VDC | VDC | A | W | RPM | m³/h | CFM | mmH2O | dBA |
LD133N-48D3-00 | 48 | 36~56 | 1.3 | 62.4 | 4500 | 420 | 210 | 41.5 | 70 |
LD133N-48D3-01 | 48 | 36~56 | 0.8 | 38.4 | 4000 | 360 | 185 | 36.8 | 65 |
LD133N-24D3-0 | 24 | 16~28 | 1.6 | 38.4 | 4000 | 360 | 185 | 36.8 | 65 |
EC Motor – Principle
With an EC motor the electronic circuitry stands in lieu of the
traditional mechanical commutation meaning the right amount is
being supplied in the right direction at exactly the right time
providing precise motor control.
Permanent-magnet brushless DC motor within the rotor
The stator is driven by electronic switches (which replace the
Carbon brushes), controlled by a microcontroller.
Electronic system (hall effect sensor or software is used to
recognize the rotor position)
AC operated (230Volts Single phase or 380/480Volts 3phase, 50/60Hz)
Energy savings with EC fans
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
Why choose us?
1. We belongs to the factory, so price we can give is based on
factory cost, not trading cost.
2. We are sole International sales of the factory, we can help to
control and protect the market of clients.
3. We integrates different kinds of products for air management.
4. We are independent of factory. This make us standing in the
position of client instead of factories. It will solve your problem
of communication with factory.