It protects a final subcircuit against both overload/short-circuit (thermal-magnetic trip, C-curve) and earth leakage (100 mA sensitivity). Rated 16 A with a breaking capacity of 6000 A Icn at 220...240 V AC 50 Hz per EN/IEC 61009-2-1, it is sized for lighting, socket-outlet, and small-appliance circuits in commercial or residential distribution boards. Earth-leakage protection is integrated. Sensitivity is 100 mA.
Clip-on mounting to DIN rail (EN 60715). Neutral is on the left; phase on the right. IP20 at the terminals, IP40 inside a modular enclosure.
