It combines a C-curve MCB (thermal-magnetic trip, 5–10 x In magnetic threshold) with integrated earth-leakage detection at 10 mA sensitivity, so one device handles both short-circuit and ground-fault protection on a single outgoing circuit. That 10 kA rating is the short-circuit current it can safely interrupt under IEC 61009-2-2 — enough for most final subcircuits in a TN earthing system. The 10 mA leakage sensitivity makes it suitable for circuits where a 30 mA device would be too coarse, such as lighting or small loads in wet or high-integrity areas.
IP20 rated for the terminals; IP40 inside a modular enclosure.
