Product Introduction
The stability and reliability of EC 240v centrifugal fans for EV charger are ensured through rigorous testing procedures before leaving the factory. Each fan undergoes multiple quality inspections including dynamic balance testing, thermal resistance testing, dust and water protection testing, and noise measurement.
The impeller's dynamic balancing ensures minimal vibration during operation, preventing resonance that could affect both equipment and installation environments.
The motor undergoes high-temperature and low-temperature testing, guaranteeing stable operation across the -25°C to 60°C temperature range.
Protection rating tests also verify that the fan can operate reliably in dusty or humid environments, ensuring long-term durability. With a service life exceeding 50,000 hours, the fan is suitable for continuous industrial operation with minimal downtime.

EC 240v centrifugal fan for EV charger 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-B310-H094-E115-C01 |
115 |
90~135 |
50/60 |
4.00 |
450 |
2400 |
3700 |
790 |
75 |
|
EN-B310-H094-E230-C01 |
230 |
184~274 |
50/60 |
2.00 |
450 |
2400 |
3700 |
790 |
75 |
|
EN-B310-H094-E380-C01 |
380 |
310~460 |
50/60 |
1.20 |
450 |
2400 |
3700 |
790 |
75 |
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 |
||
The ECNITY EC backward curved centrifugal fans represent a comprehensive ventilation solution that combines high efficiency, intelligent control, durability, and energy savings.
Thanks to their outstanding performance, flexible adaptability, and extremely low maintenance costs, these fans are widely used in industrial, commercial, medical, agricultural, and residential applications.
The core advantage lies in the high efficiency and intelligent control capabilities of EC motors, combined with the stable airflow performance of backward curved centrifugal fan structures.
This combination not only meets the ventilation requirements of diverse environments but also significantly reduces energy consumption and maintenance costs.
As smart buildings and green manufacturing continue to develop, EC backward curved centrifugal fans will continue to evolve toward greater intelligence, customization, and environmental sustainability, providing more efficient and eco-friendly ventilation solutions for a wide range of industries.

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FAQ
1. What protection features are included in EC centrifugal fans?
EC centrifugal fans typically include built-in protection functions. These may include overload, overvoltage, and thermal protection. The integrated controller helps prevent motor damage. This improves reliability during long-term operation.
2. Can EC fans be used in dust or industrial environments?
EC fans can be used in industrial environments when properly specified. Housing design and protection class should match the application. Filtration and regular inspection may be required. Application conditions should be clearly defined before selection.
3. Can EC fans be used in heat recovery ventilation (HRV) systems?
EC fans are widely used in HRV systems. They support balanced airflow control. High efficiency reduces overall system energy use. Integrated control simplifies system design.
4. Are EC centrifugal fans suitable for commercial buildings?
EC centrifugal fans are suitable for commercial building ventilation. They support variable occupancy and load conditions. Energy efficiency helps reduce operating costs. They are commonly used in offices and public buildings.
5. Can this EC fan be used as a direct replacement for an existing model?
In many cases, EC fans can replace existing AC or older fan models. Performance parameters and mounting dimensions should be compared. Electrical and control compatibility should also be checked. Proper evaluation ensures smooth replacement.



