The B curve means magnetic tripping occurs at 4 x In ±20%, so it's suited for resistive or general-purpose loads where inrush isn't severe — think lighting, heating, or control transformers.
Breaking capacity is the headline here: 36 kA Icu at 12-60 V AC, 20 kA at 100-133 V AC, and 10 kA at 220-240 V AC per EN/IEC 60947-2. That's a high-interrupting rating for a 1-module MCB — it handles substantial fault currents without cascading upstream. For residential/small-commercial branch circuits, the 6 kA Icn at 230 V per EN/IEC 60898-1 is the more common reference. The 15 kA Icu at 12-60 V DC and 10 kA at 60-72 V DC extend its use into DC distribution panels, telecom, or battery-backed circuits.
Snaps onto DIN rail, 2 x 9 mm pitches (18 mm wide). The thermal-magnetic trip unit is non-interchangeable; the toggle provides local ON/OFF and a trip indicator. IP20 finger-safe — fine inside a panel, not for wet locations.