Above the adjustable threshold DIFF: Idiff>> PSx of the differential current, the P632 will trip without taking into account either the harmonic restraint or the overfluxing stabilization. If the differential current exceeds the adjustable threshold DIFF: Idiff>>> PSx, the restraining current and the saturation discriminator are no longer taken into account either, that is the P632 will trip regardless of the restraining value and the saturation discriminator.