Low-Voltage High-Efficiency Three-Phase Induction Motors WE3 & WE4 & WE5 Series

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Low-Voltage High-Efficiency Three-Phase Induction Motors WE3 & WE4 & WE5 Series

1. Product Overview
The WE series high-efficiency three-phase induction motors are newly upgraded high-energy-efficiency motors developed for the global market. The efficiency complies with GB 18613-2020 and meets the efficiency classes from IE3 to IE5 in accordance with IEC 60034-30-1.
Mounting dimensions conform to IEC and national standards, allowing for direct replacement and quick retrofit.
The WE series features an attractive appearance, low losses, low noise, low vibration, high safety and reliability, and easy maintenance.

2. Applications
These motors are mainly used in fans, water pumps, compressors, construction machinery and other equipment.
They are widely applied in fields including ventilation and refrigeration, building services, oil and gas, petrochemicals, coal and coal chemical, metallurgy, electric power and nuclear power, shipbuilding, industrial automation, and more.

3. Standard Specifications

  • Frame size: 63 ~ 355
  • Rated power: 0.12 ~ 375 kW
  • Number of poles: 2P, 4P, 6P, 8P
  • Rated voltage: 380 V
  • Frequency: 50 Hz
  • Efficiency classes: IE3, IE4, IE5
  • Duty cycle: S1
  • Mounting arrangements: B3, B5, B35
  • Insulation class: Class F (ΔT 80 K)

(2) WE4 Electrical Performance
1) Cast iron frame motor – 2P, 50 Hz, Efficiency Class IE4
2) Cast iron frame motor – 4P, 50 Hz, Efficiency Class IE4
3) Cast iron frame motor – 6P, 50 Hz, Efficiency Class IE4
4) Cast iron frame motor – 8P, 50 Hz, Efficiency Class IE4
5) Aluminum frame motor – 2/4/6P, 50 Hz, Efficiency Class IE4

(3) WE3 Electrical Performance
1) Cast iron frame motor – 2P, 50 Hz, Efficiency Class IE3
2) Cast iron frame motor – 4P, 50 Hz, Efficiency Class IE3
3) Cast iron frame motor – 6P, 50 Hz, Efficiency Class IE3
4) Cast iron frame motor – 8P, 50 Hz, Efficiency Class IE3
5) Aluminum frame motor – 2/4/6P, 50 Hz, Efficiency Class IE3

5. Operating Conditions
(1) Ambient air temperature: -20 °C ~ +40 °C
(2) Altitude: not exceeding 1000 m
Corrections for deviations in on-site operating conditions shall be made in accordance with GB/T 755-2008.

(3) Humidity: monthly average maximum relative humidity not exceeding 90%
Motors can be customized according to user environmental requirements.