The C60H1P20AD is a 1-pole miniature circuit breaker from the Multi9 C60H series, rated 20 A at 40 °C with a D tripping curve. The 15 kA breaking capacity at 230–240 V AC (Icu per IEC 60947-2) tells you it can safely interrupt a fault up to that level without welding the contacts or cascading upstream.
The 18 mm width (2 × 9 mm pitches) means it occupies a single modular slot in a standard distribution board — no special adapter needed. Tunnel-type terminals accept up to 25 mm² rigid or 16 mm² flexible conductors; tighten to 2 N·m. The toggle actuator gives local ON/OFF indication and a contact position indicator confirms isolation status per IEC 60947-2.
