It combines earth leakage and overcurrent protection in a single 35 mm wide module, saving panel space over separate RCD and MCB units.
The 10 A rated current with C-curve tripping means the breaker holds steady under normal load but trips instantaneously at 5 to 10 times rated current (50–100 A) — the standard choice for motor circuits, transformers, and lighting with moderate inrush. The C-curve avoids nuisance tripping from brief startup surges that a B-curve would catch. Rated short-circuit breaking capacity Icn is 6 kA per the relevant product standard, while the ultimate breaking capacity Icu reaches 10 kA. The Icn figure governs the breaker's rating under the standard duty cycle; Icu tells you the maximum fault it can clear once and still be functional afterward. If your point-of-supply SCCR exceeds 6 kA, you need to check coordination with the upstream device. The rated insulation voltage of 500 V covers standard 230/400 V TN and TT systems with margin.
The 35 mm width occupies a single modular unit, so it fits existing distribution board layouts without respacing. Terminal type is listed as Bi-Directional Cylinder Lift, which accepts both cable and pin-type conductors. Tightening torque max is 2.8 Nm — a common value for 10 A terminals; use a torque screwdriver to avoid terminal heating under sustained load.