EC Backward Curved EC Motor Fan

EC Backward Curved EC Motor Fan

Motor type: BLDC external rotor motor
Impeller Diameter: 250mm
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 backward curved EC motor fans are known for their smooth operation and balanced airflow. Optimized impeller geometry minimizes turbulence, contributing to lower vibration and noise levels. These characteristics make EC motor fans suitable for noise-sensitive applications while still delivering robust cooling performance in demanding environments.

product-800-800

EC Backward Curved Ec Motor 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-B250-H052-E115-A01

115

90~135

50/60

1.50

90

2500

1200

485

63

EN-B250-H052-E230-A01

230

184~274

50/60

0.75

90

2500

1200

485

63

 

Outline Drawing

 

product-1266-690

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

 

By combining EC backward curved EC motor fan characteristics with EC motor PWM control, the system achieves high static pressure capability alongside intelligent speed regulation. This makes EC centrifugal PWM-controlled fans particularly suitable for ducted ventilation systems where airflow resistance varies dynamically. The precise control offered by PWM ensures consistent ventilation performance while minimizing energy waste, making it a preferred solution for advanced HVAC and industrial ventilation systems.

 

1Product details

 

Our factory

 

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2Typical Applications

4Package and Transportation

 

FAQ

1. What information is required to request an EC fan quotation?

Key information includes airflow, static pressure, voltage, and application. Installation conditions and control requirements are also important. Providing detailed parameters helps ensure accurate selection. This speeds up the quotation process.

2. Are EC centrifugal fans suitable for OEM mass production?

Yes, EC centrifugal fans are widely used in OEM mass production. Their integrated control design reduces external components and wiring. This simplifies assembly and improves consistency. EC fans are suitable for standardized and scalable production lines.

3. What lead time is typical for EC centrifugal fans?

Lead time depends on model, quantity, and customization requirements. Standard models usually have shorter lead times. Customized specifications may require additional production time. Exact delivery time should be confirmed during order placement.

4. Can EC fans be supplied with customized control settings?

Yes, EC fans can often be supplied with customized control parameters. Speed range, control response, or default settings may be adjusted. This is especially useful for OEM and project-based applications. Custom settings should be defined before production.

5. Are EC fans suitable for export to Europe and North America?

EC fans are commonly used in European and North American markets. They are designed to meet regional efficiency and electrical requirements. Voltage and certification options should be confirmed. This makes EC fans suitable for global export projects.

 

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