In this project, a feasibility study was carried out by OptiSigma (www.optisigm.pt) aiming the industrialization and international commercialization of a disruptive and very competitive high-efficiency, high-reliability, ultra-compact, self-powered electronic solid-state device, named InSwitch, for optimized soft-starting, steady-state performance improvement, remote operation & condition monitoring/control and advanced protection of fixed-speed three-phase squirrel-cage induction motors (SCIMs). This device can directly replace and/or compete with electromechanical star-delta starters and electronic soft-starters, being potentially cheaper and much smaller. It is designed to be installed inside the motor terminal box, which is a unique disruptive feature that saves space in the switchboards, halves the number of conductors from the switchboard to the motor, and allows direct motor vibration measurement. The patented self-tuned load-based stator-winding connection-mode change technique allows improving the motor efficiency and power factor improvement at light loads, translating into an energy savings potential of 5-20%.