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YE4 Series Three-Phase Asynchronous Motor
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Electric MotorYE4/GB2 General Purpose Motor – Product Overview
The YE4/GB2 series is a totally enclosed, fan-cooled, squirrel-cage three-phase asynchronous motor manufactured using new materials, advanced processes, and optimized design. It is a high-efficiency, energy-saving motor featuring high starting torque, low noise, and low vibration. With high efficiency, high protection level, ample temperature-rise margin, and safe, reliable operation, it delivers significant energy-saving benefits.
The motor is suitable for driving various mechanical transmission equipment such as machine tools, fans, pumps, compressors, mixers, packaging machinery, and construction machinery. It is widely applied across industries including industrial manufacturing, agriculture, national defense, chemical processing, petroleum, transportation, food, and pharmaceuticals.
YE4/GB2 General Purpose Motor – Technical Features
Standard mounting arrangements in compliance with GB/T 997
Class F insulation system with Class B temperature rise evaluation
Duty type S1; cooling method IC411; enclosure protection up to IP55
Frame sizes 225 and below use sealed bearings; above 225 feature re-lubrication structures
Terminal box located on the top of the frame; left or right outlet available on request
Optional temperature monitoring protection devices and space heaters available as required
YE4/GB2 General Purpose Motor – Technical Specifications
Frame Size: H80 ~ 355
Rated Power: 0.55 kW ~ 450 kW
Number of Poles: 2P / 4P / 6P / 8P
Rated Frequency: 50 Hz
Rated Voltage: 380 V
Energy Efficiency Class: Grade 2 (IE4 / GB2)
Protection Class: IP55
Cooling Method: IC411
Insulation / Temperature Rise: F / B
Operating Conditions:
Ambient temperature: −15°C to +40°C
Relative humidity: ≤ 90% (below 20°C)
Altitude: ≤ 1000 m
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