It protects a single outgoing circuit (1P + Ns) against overloads, short-circuits, and earth leakage, all in a single DIN-rail unit. That saves a slot in the panel compared to a separate MCB and RCCB pair, which matters when you're filling a sub-distribution board on a tight schedule.
The breaking capacity is 10 kA Icn at 240 V AC, 50/60 Hz, conforming to IEC 61009-2-2 — adequate for most commercial and light industrial final circuits where the prospective fault current stays under 10 kA. Earth-leakage sensitivity is 10 mA, which is the threshold for additional protection in wet locations or circuits serving socket outlets in bathrooms, kitchens, or outdoor installations. The thermal-magnetic trip unit gives you the classic bimetal + solenoid response: slow for sustained overloads, instant for faults.
Mounts via plug-on connection to a DIN rail, occupying 2 x 9 mm pitches — 18 mm wide, 110 mm tall, 72 mm deep. Neutral is on the left. IP20 finger-safe, IP40 inside a modular enclosure. The toggle control gives clear ON/OFF and fault indication. If you're wiring a sub-distribution board for a plant expansion, this fits the standard DIN-rail footprint without surprises.