It protects a single-phase final subcircuit against overload, short-circuit, and earth leakage, all in one DIN-rail unit. The integrated 30 mA earth-leakage protection meets the sensitivity required for personal protection in standard building and industrial final circuits. Breaking capacity is 4500 A Icn at 220…240 V AC 50 Hz, certified to EN/IEC 61009-2-1. That rating governs the maximum prospective fault current the device can safely interrupt — adequate for most residential, commercial, and light-industrial outgoing circuits where the upstream short-circuit level stays under that threshold.
The 36 mm width (4 × 9 mm pitches) and 85 mm height fit standard modular enclosure grids. Neutral is on the left; phase on the right — wire it with that orientation in mind.