The HVAC EC Motor for Air Conditioning serves as the heart of modern climate control systems, combining precision engineering with exceptional energy efficiency.
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N48ECI03D13C1S1
Dowell
N48ECI03D13C1S1
Available in 1/3 to 1 HP configurations, this electronically commutated motor delivers consistent performance across residential, commercial, and industrial air conditioning units . Its innovative spoke-type concentrated flux rotor design reduces weight by 28.6% while maintaining efficiency ratings exceeding 80%—far surpassing the performance of traditional AC motors . Dual voltage compatibility (115V and 230V) ensures seamless integration into global HVAC systems without manual rewiring .
Equipped with built-in control algorithms, the motor adjusts speed and torque in real-time to maintain constant airflow despite changes in static pressure—critical for consistent cooling in variable load conditions . This dynamic response eliminates the energy waste associated with fixed-speed motors that operate at full capacity regardless of demand.
Reduced magnetic pull variation in the rotor design minimizes vibration and noise, with operating levels as low as 35 dB(A)—significantly quieter than conventional motors . This makes it ideal for noise-sensitive environments like hotels, hospitals, and residential buildings.
Featuring Class F insulation and IP54 protection, the motor withstands harsh operating conditions, including temperature fluctuations and moisture exposure . It meets ERP 2019/1782 energy efficiency standards and is certified under UL 507 for electrical safety, ensuring regulatory compliance in major markets .
Integrated into rooftop units and indoor air handlers, providing the precise airflow needed for heating and cooling distribution in commercial buildings.
Driving fan systems in heat pump outdoor units, where efficiency and reliability directly impact heating/cooling performance and energy costs.
Delivering controlled airflow in residential and light commercial furnaces, enhancing combustion efficiency and indoor air quality.
Unlike AC motors that require external frequency converters, EC motors integrate electronics for direct speed control, achieving 30-70% energy savings and eliminating humming noises .
With brushless construction and robust bearings, the motor offers a service life of 40,000+ hours—approximately 15 years of typical HVAC operation .
Yes, its compact design and universal mounting compatibility allow direct replacement in most systems, with payback periods averaging 6 months through energy savings .

Available in 1/3 to 1 HP configurations, this electronically commutated motor delivers consistent performance across residential, commercial, and industrial air conditioning units . Its innovative spoke-type concentrated flux rotor design reduces weight by 28.6% while maintaining efficiency ratings exceeding 80%—far surpassing the performance of traditional AC motors . Dual voltage compatibility (115V and 230V) ensures seamless integration into global HVAC systems without manual rewiring .
Equipped with built-in control algorithms, the motor adjusts speed and torque in real-time to maintain constant airflow despite changes in static pressure—critical for consistent cooling in variable load conditions . This dynamic response eliminates the energy waste associated with fixed-speed motors that operate at full capacity regardless of demand.
Reduced magnetic pull variation in the rotor design minimizes vibration and noise, with operating levels as low as 35 dB(A)—significantly quieter than conventional motors . This makes it ideal for noise-sensitive environments like hotels, hospitals, and residential buildings.
Featuring Class F insulation and IP54 protection, the motor withstands harsh operating conditions, including temperature fluctuations and moisture exposure . It meets ERP 2019/1782 energy efficiency standards and is certified under UL 507 for electrical safety, ensuring regulatory compliance in major markets .
Integrated into rooftop units and indoor air handlers, providing the precise airflow needed for heating and cooling distribution in commercial buildings.
Driving fan systems in heat pump outdoor units, where efficiency and reliability directly impact heating/cooling performance and energy costs.
Delivering controlled airflow in residential and light commercial furnaces, enhancing combustion efficiency and indoor air quality.
Unlike AC motors that require external frequency converters, EC motors integrate electronics for direct speed control, achieving 30-70% energy savings and eliminating humming noises .
With brushless construction and robust bearings, the motor offers a service life of 40,000+ hours—approximately 15 years of typical HVAC operation .
Yes, its compact design and universal mounting compatibility allow direct replacement in most systems, with payback periods averaging 6 months through energy savings .

| Model | N48ECI03D13C1S1 |
| Power | 208-230VAC |
| Frequency | 50/60Hz |
| Power | 1/2 hp |
| Max. Speed | 1300rpm |
| Max Current | 3.6-3.8A |
| Insolation Class | B |
| Power cable | |
| Brown | 208-230VAC single phase |
| Blue | |
| Yellow/Green | Ground |
| Signal cable | |
| Yellow | 12 VDC |
| Red | Start/Stop |
| Brown | PWM |
| White | Speed feedback |
| Black | Common |
| Model | N48ECI03D13C1S1 |
| Power | 208-230VAC |
| Frequency | 50/60Hz |
| Power | 1/2 hp |
| Max. Speed | 1300rpm |
| Max Current | 3.6-3.8A |
| Insolation Class | B |
| Power cable | |
| Brown | 208-230VAC single phase |
| Blue | |
| Yellow/Green | Ground |
| Signal cable | |
| Yellow | 12 VDC |
| Red | Start/Stop |
| Brown | PWM |
| White | Speed feedback |
| Black | Common |