NPM800R and NPM800RE handle the protection of medium voltage motors and low voltage high power motors. These multifunction relays analyse the current absorbed by the motor during starting, reacceleration and normal speed phases. They also monitor the proper operation of the circuit breaker and its triggering circuit.

These functions associated with an R type modular unit, thus allow the NPM800R and NPM800RE to be used for quick replacement, by equivalence of function, of the relays in the relay CEE of the series 7000 (mechanical interchangeability.