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Variable Frequency Multi-Speed Three-Phase Asynchronous Motors2026-03-04YD Series Variable Frequency Multi-Speed Three-Phase Asynchronous Motors - Design Principle: Multi-speed via winding pole pair switching- Compliance: IEC standards- Key Benefits: Compact design, low noise, energy-saving- Applications: Step-speed regulation machinery- Technical Specifications:- Frame size: 80–280mm- Power: 0.35–82kW- Voltage: 380V (customizable)- Frequency: 50/60Hz- Protection: IP54/IP55- Insulation: B/F- Duty: S1