Breaking capacity is 4.5 kA per EN 60898 (the standard for household and similar installations) and 25 kA per IEC 60947-2 (the industrial standard for low-voltage switchgear). That dual rating gives the panel designer flexibility: the lower figure governs domestic compliance, while the higher figure supports industrial coordination studies where fault current at the board may be higher.
Supply can enter from either top or bottom, and the mounting position is unrestricted — it can be installed horizontally or vertically without derating. Humidity tolerance up to 95% is specified, which matters for coastal or high-condensation environments. Halogen-free and silicon-free construction simplifies disposal compliance and avoids corrosion risk in sealed enclosures where outgassing could affect contacts.
The C-curve trips between 5 and 10 times rated current (In = 6 A), so magnetic release occurs between 30 A and 60 A. That suits circuits with transformer inrush or small motor starting currents. The insulation voltage (Ui) is 440 V, and surge voltage resistance is 4 kV, matching typical TN and TT system requirements.