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EC Backward Centrifugal Fans

Numerous approvals including UL,CE and RoHs

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Speed (RPM)
Sound pres level[dB(A)]
Max. Airflow [m³/h]
Max. Air pressure [Pa]

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Power input
Sound pres
Perm amb
Voltage Type Frequency Max. Airflow
Max. Air pressure
Model {{ item.parameter.model }} Nominal voltage[VAC] {{ item.parameter.nominal_voltage }} Speed (RPM) {{ item.parameter.speed_rpm }} Power input max(W) {{ item.parameter.power_input_max }} Current max(A) {{ item.parameter.current_max }} Sound pres level[dB(A)] {{ item.parameter.sound_pres_level }} Perm amb temp[*c] {{ item.parameter.perm_amb_temp }} Electrical connection {{ item.parameter.electrical_connection }} Voltage Type {{ item.parameter.voltage_type }} Frequency {{ item.parameter.frequency }} Max. Airflow [m³/h] {{ item.parameter.max_airflow }} Max. Air pressure [Pa] {{ item.parameter.max_air_pressure }}
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EC (Electronically Commutated) Backward Centrifugal Fans represent the latest advancement in air moving technology. They integrate EC motors with backward-curved impellers to deliver superior performance, energy efficiency, and controllability.

1.Product Features:

  • EC Motor Technology:

Utilizes brushless DC motors with integrated electronics for precise speed control and efficient operation.

  • Backward-Curved Impellers:

Optimize airflow and pressure generation while minimizing noise and energy consumption.

  • Variable Speed Operation:

Allows for seamless adjustment of fan speed to meet varying airflow requirements, resulting in energy savings and enhanced comfort.

  • Integrated Control Options:

Compatible with various control methods, including PWM (Pulse Width Modulation), 0-10V analog signal, and Modbus communication protocols.

  • Low Maintenance:

Maintenance-free operation with long service life due to the absence of brushes in the motor design.

2.Application Scenarios:

  • HVAC Systems:

Ideal for use in heating, ventilation, and air conditioning systems in commercial buildings, offices, hospitals, and hotels.

  • Data Centers:

Critical for cooling and ventilation in data centers to maintain optimal operating temperatures and airflow for sensitive equipment.

  • Indoor Air Quality (IAQ) Solutions:

Suitable for air filtration, ventilation, and exhaust systems in cleanrooms, laboratories, and manufacturing facilities.

  • Energy Recovery Ventilation (ERV):

Used in ERV systems to recover heat or coolth from exhaust air and transfer it to incoming fresh air, improving energy efficiency and indoor air quality.

3.Company Advantages:

  • Innovation:

Our company is at the forefront of EC fan technology, continuously innovating and refining our products to deliver cutting-edge solutions that exceed customer expectations.

  • Energy Efficiency:

We are committed to sustainability and energy conservation. Our EC backward centrifugal fans offer industry-leading energy efficiency ratings, helping customers reduce their carbon footprint and operating costs.

  • Custom Solutions:

With our in-house engineering expertise and manufacturing capabilities, we can customize EC backward centrifugal fans to meet specific performance requirements and application needs.

  • Technical Support:

Our team of engineers and technical experts provides comprehensive support, including fan selection assistance, system design recommendations, and troubleshooting guidance, to ensure optimal performance and customer satisfaction.


Q: What are the benefits of using EC motors in backward centrifugal fans?

A: EC motors offer variable speed control, high efficiency, and low noise operation compared to traditional AC motors. They also enable energy savings, precise airflow modulation, and integration with building automation systems.

Q: Can EC backward centrifugal fans be retrofitted into existing HVAC systems?

A: Yes, EC backward centrifugal fans are designed to be compatible with retrofit applications. Our engineering team can assist in assessing compatibility, providing installation recommendations, and optimizing system performance.

Q: Are EC backward centrifugal fans suitable for outdoor installations?

A: While EC backward centrifugal fans can be used in outdoor applications, it’s essential to consider environmental factors such as weather protection, corrosion resistance, and motor enclosure ratings to ensure reliable operation and longevity. We offer weatherproof and corrosion-resistant options for outdoor installations.

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