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High Power Density EC Motor with Customizable Speed and IP55 Protection for HVAC & Pump Systems
High Power Density EC Motor with Customizable Speed and IP55 Protection for HVAC & Pump Systems
High Power Density EC Motor with Customizable Speed and IP55 Protection for HVAC & Pump Systems
High Power Density EC Motor with Customizable Speed and IP55 Protection for HVAC & Pump Systems
High Power Density EC Motor with Customizable Speed and IP55 Protection for HVAC & Pump Systems
High Power Density EC Motor with Customizable Speed and IP55 Protection for HVAC & Pump Systems
High Power Density EC Motor with Customizable Speed and IP55 Protection for HVAC & Pump Systems
High Power Density EC Motor with Customizable Speed and IP55 Protection for HVAC & Pump Systems
Specifications
Brand Name :
Terrui
Model Number :
308
Certification :
ISO9001
Place of Origin :
China
Price :
Discuss
Payment Terms :
L/C,D/A,D/P,T/T,Western Union
Speed (RPM) :
320
Input Power (W/HP) :
3300/4.4
Application :
86" Fan
Voltage :
220V / 380V 3‑Phase
Insulation Class :
F / H
Protection Rating :
IP55 (optional IP44‑IP67)
Control :
0‑10V / PWM / Modbus / CANbus
Warranty :
3‑Year electrical warranty
Description
High Power Density EC Motor with Customizable Speed for HVAC & Pump Systems
Product Overview

This EC motor is a high-performance external rotor electronically commutated permanent magnet synchronous motor, specially designed for HVAC, large fans, pump systems and industrial automation. Adopting a direct-drive brushless structure with integrated intelligent drive control, it delivers high torque, compact size, ultra-low noise and long service life. It replaces traditional internal rotor motors with belts or gearboxes, providing stable and efficient power for your equipment.

Core Advantages
  • High Torque & Small Footprint: External rotor structure makes the EC motor the structural center of your equipment with shorter axial length and stronger torque at same power
  • High Efficiency & Cost Reduction: Redesigned electromagnetic circuit and high-fill-factor winding reduce copper consumption and improve efficiency
  • Self-Cooling & High Reliability: Rotor exposed to airflow or liquid flow for self-cooling, maintaining high efficiency at peak load with IP44-IP67 protection
  • Maintenance-Free & Long Lifespan: Brushless and contactless commutation eliminates mechanical wear, reducing maintenance frequency
  • Precise Control & Easy Integration: Native support for PWM, 0-10V, Modbus and CANbus with pre-programmable firmware
Key Features
  • External rotor direct drive with zero mechanical coupling loss
  • Brushless electronic commutation with noise ≤36dBA
  • High power density, lightweight and compact design
  • Integrated intelligent drive for precise control
  • Wide voltage compatibility and multiple communication protocols
  • Strong customization options for shaft extension, mounting flange, and protection level
  • Compliant with international energy efficiency standards
Why Choose Our EC Motor
  • Fully Customized Matching: Deeply customized to your housing, torque curve and communication protocol
  • Full-Scenario Engineering Validation: Tested for high humidity, dust, and temperature fluctuations
  • Ready to Use Out of Box: Pre-calibrated drive parameters and safety limits
  • Quality & Delivery Assurance: ISO9001 certified with strict testing and reliable delivery
  • Superior Energy Savings: Up to 30% efficiency improvement compared to conventional motors
Technical Parameters
Parameter Value
Product Model 308
Speed (RPM) 320
Input Power (W/HP) 3300/4.4
Application 86" Fan
Voltage 220V / 380V 3-Phase
Insulation Class F / H
Protection Rating IP55 (optional IP44-IP67)
Control 0-10V / PWM / Modbus / CANbus
Warranty 3-Year electrical warranty
Frequently Asked Questions
What is the difference between EC motor and ordinary AC motor?
The EC motor is an electronically commutated permanent magnet direct-drive motor, which is brushless, more efficient, quieter, more controllable and longer lasting, with up to 30% energy saving. Ordinary AC motors are mostly induction types that require transmission parts, resulting in higher loss, simpler control and more maintenance.
Is this EC motor customizable?
Yes. Shaft extension, mounting flange, cable outlet, torque curve, communication protocol and protection level (IP44-IP67) can all be customized to fit your equipment structure.
What is the service life and maintenance cycle of the EC motor?
With no brush wear or mechanical abrasion, service life depends mainly on bearings and lubrication, reaching tens of thousands of hours under normal conditions. It is virtually maintenance-free with no brush replacement required.
Can it directly replace the motor in my existing equipment?
Yes. We provide a direct EC motor replacement solution based on your current installation dimensions, power, interfaces and control mode, enabling fast energy-saving upgrades without major modifications.
What applications is the EC motor suitable for?
Large industrial fans, HVAC systems, pump systems, ventilation equipment and industrial automation lines. It is especially ideal for quiet, high-efficiency, maintenance-free and precision-control applications.
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High Power Density EC Motor with Customizable Speed and IP55 Protection for HVAC & Pump Systems

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Product Detail
Brand Name :
Terrui
Model Number :
308
Certification :
ISO9001
Place of Origin :
China
Price :
Discuss
Payment Terms :
L/C,D/A,D/P,T/T,Western Union
Contact Supplier
High Power Density EC Motor with Customizable Speed and IP55 Protection for HVAC & Pump Systems
High Power Density EC Motor with Customizable Speed and IP55 Protection for HVAC & Pump Systems
High Power Density EC Motor with Customizable Speed and IP55 Protection for HVAC & Pump Systems
High Power Density EC Motor with Customizable Speed and IP55 Protection for HVAC & Pump Systems

Shanghai Terrui International Trade Co., Ltd.

Verified Supplier
7 Years
shanghai, shanghai
Since 2002
Business Type :
Manufacturer, Distributor/Wholesaler, Importer, Exporter, Trading Company, Seller
Main Products :
Livestock Ventilation Fans, Livestock Water Tank, Industrial Exhaust Fan
Total Annual :
15000000-20000000
Employee Number :
150~200
Certification Level :
Verified Supplier
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