It breaks 6000 A at 230/400 V AC 50/60 Hz per IEC 60898-1, which means it handles standard residential and light commercial fault levels without cascading upstream.
This part is marked Obsolete by the manufacturer. If you are freezing a new design, look at the current Domae active catalog for a 1P 6A C-curve MCB; the form factor (18 mm width, clip-on DIN rail) is standard across the range, so panel layout should carry over.
Mounts on DIN rail via the clip-on mechanism — 18 mm wide (one modular unit), 81 mm tall, 78.5 mm deep. Tunnel terminals accept 1–25 mm² rigid or 1–16 mm² flexible wire; tighten to 2 N·m. IP20 finger-safe front. Electrical endurance is 20,000 cycles at rated load; mechanical endurance 10,000 cycles.
