Product Introduction
One of the major advantages of the ECNITY EC quiet centrifugal fan for semiconductor equipment is their very low maintenance requirements. Because the fan uses a brushless EC motor, there is no need to periodically replace carbon brushes as required in traditional motors. This greatly reduces maintenance workload and operating costs.
The motor bearings use maintenance-free ball bearings, eliminating the need for frequent lubrication.
In addition, the fan structure is relatively simple and uses standardized components. If replacement parts are required, compatible parts can be easily sourced and replaced quickly.
The housing adopts a removable design, allowing easy access for cleaning the impeller and internal surfaces. This prevents dust accumulation from reducing efficiency and extends the overall service life of the equipment.

EC quiet centrifugal fan for semiconductor equipment 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-B280-H078-E115-C01 |
115 |
90~135 |
50/60 |
3.36 |
385 |
2820 |
2820 |
895 |
80 |
|
EN-B280-H078-E230-C01 |
230 |
184~274 |
50/60 |
1.68 |
385 |
2820 |
2820 |
895 |
80 |
|
EN-B280-H078-E380-C01 |
380 |
310~460 |
50/60 |
1.05 |
385 |
2820 |
2820 |
895 |
80 |
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 quiet centrifugal fan for semiconductor equipment achieve international advanced energy efficiency levels and comply with ErP energy efficiency directives. With system efficiencies reaching up to 90%, these fans can reduce energy consumption by more than 50% compared with traditional AC centrifugal fans.
The demand-based airflow design allows the fan to automatically adjust its speed according to real-time ventilation requirements. This eliminates the inefficient "oversized motor with throttling control" approach commonly found in traditional ventilation systems.
In addition, the fan features a power factor above 0.95, reducing electrical grid losses and improving overall energy utilization efficiency. This makes the fan suitable for large-scale deployment in energy-efficient building and industrial systems.

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FAQ
1. How does duct design affect EC fan performance?
Duct design directly influences airflow and pressure loss. Poorly designed ducts can reduce system efficiency. EC fans adjust speed to compensate for changes, but optimal duct design is still important. Proper layout helps achieve stable performance.
2. Can EC fans be used with filters or heat exchangers?
Yes, EC centrifugal fans are commonly used with filters and heat exchangers. These components increase system resistance. EC fans can adapt speed to maintain required airflow. Proper selection ensures stable operation under added load.
3. What is the efficiency advantage of EC motors?
EC motors convert electrical energy more efficiently than traditional AC motors. Efficiency remains high across a wide speed range. This reduces energy losses during partial load operation. It makes EC fans ideal for variable speed applications.
4. Can EC fans operate with external sensors?
Yes, EC fans can operate based on external sensor input. Signals from pressure, temperature, or air quality sensors can control speed. This allows automated and responsive system operation. Integration depends on control system design.
5. 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.



