750W RS485 Small Frequency Converter — Single-phase Input, Three-phase 220V Output, 0–99.0 Hz Key benefits Converts a single-phase supply to drive three-phase 220V motors, enabling use of three-phase equipment where three-phase power is unavailable. Precise MCU-based motor speed control for consistent performance across speeds. RS485 interface allows integration with PLCs, HMIs, or other automation systems for remote monitoring and control. Compact design suitable for space-limited installations while providing 750W output capacity for small to medium loads. What it does Motor speed controller and inverter (frequency converter) that accepts single-phase input and drives three-phase 220V motors. Output frequency adjustable from 0 to 99.0 Hz to control motor speed and match process requirements. Built-in MCU control enables stable, repeatable speed regulation and integration via RS485. Compatibility and performance Power: 750W (single unit, 1 pc) Communication: RS485 for serial control and monitoring Motor type: Three-phase 220V motors Input: Single-phase mains input Output frequency range: 0–99.0 Hz Control: MCU-based speed control for reliable performance Practical use scenarios Retrofit small manufacturing equipment: Drive a 220V three-phase motor from an existing single-phase supply to modernize conveyors, mixers, or small production lines without changing facility wiring. HVAC and pump control: Provide adjustable speed control for pumps or fans driven by 220V three-phase motors to better match flow and reduce mechanical wear. Workshop and machine tools: Use as a compact speed controller for small machine tools, lathes, or mills that require precise speed adjustment and remote control capability. Why users choose this unit Simple solution to run three-phase 220V motors where only single-phase power is available. RS485 communication and MCU control make it practical for both standalone installations and automated systems. 750W rating covers a wide range of small industrial and commercial applications while offering a broad 0–99.0 Hz frequency range for flexible motor control. Included item 1 pc 750W RS485 small frequency converter (motor speed controller), single-phase input, suitable for driving three-phase 220V motors; output frequency 0–99.0 Hz.