High Efficiency Three-Phase Induction Motors

LONGWELL high-efficiency three-phase induction motors are engineered for heavy-duty HVAC systems, blowers, pumps, and industrial machinery[cite: 3, 8]. Designed in strict accordance with IEC 60034-30:2008 standards[cite: 29], our motors deliver exceptional continuous operation (S1 Duty) and reliable power transmission across demanding environments[cite: 24, 25].

Core Motor Series

• YE2 / YX3 Series: Premium high-efficiency cast iron asynchronous motors with rated outputs from 0.75kW up to 375kW[cite: 4, 9].
• MS Series: Lightweight, highly efficient aluminium-housing three-phase asynchronous motors[cite: 19].
• YEJ Series: Electromagnetic braking induction motors featuring rapid static braking and high reliability[cite: 22, 23].
• YVF Series: Variable frequency adjustable-speed converter-fed motors for precise process control[cite: 25].
• YCT / YD Series: Electromagnetic clutch adjustable-speed motors[cite: 26] and change-pole multi-speed motors[cite: 27] for dynamic speed requirements.

Technical Specifications & Features

• Rated Voltage: 380V, 400V, 415V, and 525V[cite: 4].
• Frequency: 50Hz and 60Hz compatible[cite: 24].
• Ingress Protection: IP44 / IP55 ratings, ensuring strong protection against dust ingress and water jets[cite: 4, 24].
• Insulation & Cooling: Class B / Class F insulation[cite: 24, 25] with IC411 / IC416 cooling methods[cite: 24, 25].
• Mounting Configurations: Extensive support for B3 (Foot mount), B5 (Flange mount), B35, and V1 arrangements per IEC 60034-7[cite: 16, 30].
• Operating Conditions: Engineered for ambient temperatures between -15°C and 40°C, suitable for altitudes up to 1000 meters[cite: 24, 25].