The paper presents the issues of implementing a relay protection system for induction motors connected at a voltage level of 0.4 kV. The implementation of protection against overload and asymmetrical load, as well as protection against phase-to-ground short circuits of an induction motor, is analyzed, taking into account various possible ways of starting induction motors. The paper also presents the selection and parameterization of a relay protection system for a specific induction motor, based on the use of Compact NSX circuit breakers from Schneider Electric.