The CMC-LX motor soft starter is a novel motor starting and protection device that integrates power electronics technology, microprocessors, and automatic control. It enables smooth, step-less starting and stopping of motors, avoiding mechanical and electrical shocks caused by traditional starting methods such as direct starting, star-delta starting, and autotransformer reduced-voltage starting. It also effectively reduces the starting current and power distribution capacity, eliminating the need for capacity expansion investments. Additionally, the CMC-LX soft starter incorporates an internal current transformer, eliminating the need for external installation by users.