Product Introduction
Energy efficiency is a major advantage of EC centrifugal fans utilizing PWM control. The EC motor operates with high electrical efficiency across both full-load and partial-load conditions. PWM control allows the fan to operate only at the speed required by the system, eliminating unnecessary power consumption and reducing operating costs.
By eliminating mechanical losses associated with belt drives or external controllers, EC Energy Efficient Centrifugal Fan reduce overall system complexity and improve reliability. Lower power consumption also results in reduced heat generation, contributing to longer motor lifespan and lower cooling requirements. For applications where energy efficiency, operational flexibility, and smart control are critical, EC centrifugal fans with backward curved impellers provide a future-ready ventilation solution.

EC Energy Efficient Centrifugal Fan Technical Parameters:
|
Model No. |
Rated |
Operation Voltage |
Frequency |
Rated |
Rated Power |
Rated |
Air Flow |
Air |
Noise |
|
VAC |
VAC |
Hz |
A |
W |
RPM |
m3/h |
Pa |
dBA |
|
|
EN-B225-H064-E115-A01 |
115 |
90~135 |
50/60 |
1.30 |
85 |
2500 |
910 |
315 |
65 |
|
EN-B225-H064-E230-A01 |
230 |
184~274 |
50/60 |
0.65 |
85 |
2500 |
910 |
315 |
65 |
Outline Drawing

Performance Curve

Connection
|
DC Wire |
AC Wire |
||
|
Color |
Function |
Color |
Function |
|
Red |
+10VDC |
Brown |
L |
|
Blue |
GND |
Blue |
N |
|
Yellow |
0~10VDC/PWM |
Green/Yellow |
PE |
|
White |
FG |
||
Noise performance is another important benefit. Smooth speed control, optimized impeller geometry, and balanced construction contribute to low vibration and reduced acoustic emissions. Integrated motor protections, such as thermal monitoring and soft-start functionality, enhance operational safety and extend service life. These features make EC Energy Efficient Centrifugal Fan a dependable choice for applications requiring long-term, continuous operation.

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FAQ
1. How do I choose the right EC centrifugal fan for my application?
Selecting the right EC centrifugal fan depends on airflow, static pressure, and operating conditions. Installation space and control requirements should also be considered. Reviewing the fan performance curve helps ensure proper matching. Correct selection improves efficiency and long-term reliability.
2. What airflow range can EC centrifugal fans cover?
EC centrifugal fans are available across a wide airflow range. Small models are suitable for compact systems, while larger units handle higher airflow demands. Actual airflow depends on system resistance. Performance data should always be referenced.
3. How important is static pressure when selecting an EC fan?
Static pressure is a critical factor in fan selection. It determines the fan's ability to overcome system resistance. Insufficient pressure can lead to reduced airflow. EC centrifugal fans are designed to handle moderate to high static pressure applications.
4. Can EC fans be customized for specific projects?
Yes, EC fans can often be customized to meet specific project requirements. Customization may include voltage, control method, or mounting configuration. OEM and project-based applications commonly require such adjustments. Custom options should be discussed during the design stage.
5. What installation considerations apply to EC centrifugal fans?
Proper installation ensures optimal performance and service life. Adequate clearance for airflow and cooling should be maintained. Electrical connections must follow specified requirements. Incorrect installation can affect efficiency and reliability.
6. Are EC fans suitable for compact or limited spaces?
EC fans are well suited for compact installations. The integrated controller reduces the need for external components. This helps save space in equipment or enclosures. Compact design makes them ideal for OEM and modular systems.



