It carries a 6 kA breaking capacity, D-curve tripping characteristic, Type AC residual-current sensing, and a 50 A rated current. The 'Construction line' designation points to a standard residential or light commercial panel fit.
Type AC residual sensing covers sinusoidal AC fault currents — the standard for general-purpose socket circuits and lighting. The 1+N format fits a single-module width on the DIN rail, which matters when packing multiple ways into a consumer unit or sub-distribution board.