RCBO for final-circuit protection
Type A residual-current detection handles pulsating DC fault currents (rectified half-wave) in addition to sinusoidal AC, so it covers modern electronics, switched-mode power supplies, and variable-speed drives downstream.
Panel integration and DIN-rail fit
The 1P+N width (one module) saves a slot over a separate MCB+RCD pair — useful when fill factor in a consumer unit or sub-distribution board is tight. Rated voltage is single-phase 230 V AC; the neutral pole is switched and protected.