Introduction Greeting from Seoul, Korea! Samusco is the company who kept "Researching & Developing" for the Electrical-Application Machinery. We, Samusco had been working to prepare to be the world-leader in the industry while manufacturing the Electrical Practical-Application Machineries. These efforts are not only limited to the existing technology but to lead its world-market through acknowledging the constant challenges. single phase induction Motors, Ac motor, Centrifugal Switches, Capacitor start motor, Motor starting Switch : We develop and manufacture the state of the art starting switches for single phase induction motors. Our innovative and effective solutions have been successfully adopted in numerous residential and commercial machine applications throughout the world. For last several decades single-phase AC motors have utilized mechanical centrifugal switches to disengage auxiliary coil from main coil. Electronic Centrifugal Switch(ECS) is a reliable solid-state switch that would duplicate the functions of the conventional centrifugal switch with additional benefits of the electronic devices.