BUY ET439 https://www.utsource.net/itm/p/1571169.html

ET439 is a module manufactured by Fuji Electric. It is a three-phase brushless motor drive module. It is designed for use in industrial applications such as pumps, fans, and compressors. It features a high-performance control circuit, a built-in EMC filter, and a wide range of speed control functions. It also has a built-in overvoltage protection circuit and a built-in overcurrent protection circuit. It is suitable for use in a wide variety of applications, including pumps, fans, compressors, and other industrial equipment. (For reference only)