ABB 7403 is a soft starter controller, part of ABB’s Smart Motor Controller family. It is designed for controlling the starting and stopping of medium-sized three-phase asynchronous motors. It is designed to not just protect the motor, but to improve energy efficiency, reduce downtime, and improve the life of the motor. It features short circuit protection and overload protection, protective measurements against temperature and phase loss, and comes equipped with integrated PLC and HMI (Human Machine Interface) functions. The 7403 is suitable for a wide range of motor applications, such as pumps, fans, compressors, machine tools, cranes, and conveyors.