It carries a 63 A rated current at 30 °C with a 30 mA residual-current trip, C characteristic for moderate inrush (motor starts, capacitor banks), and a 6 kA breaking capacity certified to both EN 60898 and IEC 60947-2.
Ratings that matter for fit
Depth is 77 mm, installation depth 70 mm; the extra 7 mm is the front projection. Mounting position is unrestricted, and the supply can enter from top or bottom, which simplifies panel layout. The C-curve trips between 5× and 10× In, so at 63 A that is 315 A to 630 A magnetic release. The 30 mA residual element is instantaneous (no time delay), which makes it unsuitable for circuits with downstream RCDs unless you coordinate selectivity via a time-delayed S-type upstream. The 1 kA surge withstand (8/20 µs) is typical for this class — it will survive most lightning-induced transients on a TN-S system without nuisance tripping.
Halogen-free and silicon-free construction, pollution degree 2, overvoltage category III. The part is designed to EN 60898 and IEC 60947-2, which means it carries the CE mark for the European low-voltage directive. Touch protection is integrated (finger-safe terminals). Typical mechanical endurance is 10 000 switching cycles.