EC Variable Speed Centrifugal Cooling Fan

EC Variable Speed Centrifugal Cooling Fan

Motor type: BLDC external rotor motor
Impeller Diameter: 225mm
Impeller Material: PA66
Direction of Rotation: CW, see on rotor
Speed Control: 0-10VDC/PWM
Type of Protection: IP44 / IP54
Insulation Class: B
Operation Mode: S1
Bearing: Maintenance-free ball bearing
Ambient Temperature: -25~+60℃
Motor Protection: Locked-Rotor Protection, Reverse Polarity Protection, Thermal Protection, Soft Start
Certificate: CE, LVD, ROHS, ETL
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Description
Technical Parameters

Product Introduction

ECNITY EC variable speed centrifugal cooling fan is a highly adaptable air-moving solution designed for effective heat dissipation in systems where thermal loads fluctuate over time. Unlike fixed-speed cooling fans, variable speed centrifugal fans can dynamically adjust airflow to match real-time cooling requirements, ensuring stable temperature control while minimizing unnecessary energy consumption.

The centrifugal design enables the fan to generate higher static pressure compared to axial cooling fans, making it especially suitable for cooling applications involving heat sinks, electronic enclosures, filters, or compact airflow channels. Air is drawn into the center of the impeller and discharged radially through a scroll housing, allowing the fan to overcome internal resistance and deliver consistent cooling performance.

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EC Variable Speed Centrifugal Cooling Fan Technical Parameters:

 

Model No.

Rated
Voltage

Operation Voltage

Frequency

Rated
Current

Rated Power

Rated
Speed

Air Flow

Air
Pressure

Noise
Level

VAC

VAC

Hz

A

W

RPM

m3/h

Pa

dBA

EN-B225-H063-E115-B01

115

90~135

50/60

2.26

155

3030

1340

705

71

EN-B225-H063-E230-B01

230

184~274

50/60

1.13

155

3030

1340

705

71

 

Outline Drawing

 

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Performance Curve

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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 key advantages of ECNITY variable speed centrifugal cooling fan is its ability to maintain stable airflow under varying resistance conditions. In cooling systems with dense heat sinks, compact ducts, or airflow obstructions, centrifugal fans outperform axial designs by maintaining pressure and airflow consistency. This ensures reliable heat removal even in confined or complex layouts.

Variable speed operation allows the fan to respond quickly to temperature changes. As thermal load increases, the fan speed can be automatically raised to enhance cooling capacity. Conversely, when heat generation decreases, the fan slows down, reducing noise and mechanical wear. This responsive behavior improves overall system stability and cooling efficiency.

 

1Product details

 

Our factory

 

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2Typical Applications

4Package and Transportation

 

FAQ

1. How does EC technology reduce operating costs?

EC technology reduces energy consumption by matching speed to demand. High efficiency at partial load lowers electricity usage. Reduced heat generation minimizes stress on components. This leads to lower operating and maintenance costs.

2.Are EC fans suitable for long duct systems?

EC centrifugal fans can be used in long duct systems with proper selection. Higher static pressure capability helps overcome resistance. Performance curves should be carefully evaluated. Correct sizing ensures sufficient airflow throughout the system.

3. Can EC fans operate under varying load conditions?

EC fans are designed to operate efficiently under varying load conditions. Integrated control electronics adapt motor performance. This ensures stable airflow and pressure. Variable load operation does not significantly affect efficiency.

4. What certifications are commonly associated with EC fans?

EC fans may comply with various international standards depending on the market. Common certifications relate to electrical safety and efficiency. Requirements vary by region and application. Certification details should be confirmed for each project.

5. Are EC fans suitable for automation and smart systems?

EC fans integrate well with automation and smart control systems. They accept standard control signals from sensors or controllers. This enables demand-based operation. Smart integration improves system efficiency and control accuracy.

6. How does mounting orientation affect EC fan performance?

Mounting orientation can influence airflow and cooling. Most EC fans are designed for flexible installation. Manufacturer guidelines should be followed. Proper mounting helps maintain optimal performance.

7. Can EC centrifugal fans be used in modular systems?

EC centrifugal fans are commonly used in modular system designs. Their compact size and integrated control simplify assembly. Modular systems benefit from flexible speed adjustment. This supports scalable and standardized solutions.

 

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