The C60H4P63AD is a 4-pole miniature circuit breaker from the Schneider Multi9 C60H series, rated 63 A at 40 °C with a D tripping curve. The 4-pole version (4P) switches all four poles simultaneously, used on three-phase plus neutral circuits or DC applications where full isolation is required. Breaking capacity is the key safety spec: 10 kA Icn at 230/400 V AC per EN 60898, and higher Icu values per IEC 60947-2 — up to 50 kA at 250 V DC for the 4-pole configuration. The Icn rating (10 kA) is the standard for distribution boards under EN 60898; the Icu ratings (15 kA at 400...415 V AC, 30 kA at 230...240 V AC) apply when the breaker is specified to IEC 60947-2 for industrial panels. The Ics (service breaking capacity) ranges from 5 kA to 15 kA depending on voltage — this is the capacity the breaker can clear and still be reused, not just survive once.
At 72 mm wide (8 x 9 mm pitches), it occupies 8 module spaces in a distribution board or enclosure. Depth is 73 mm, height 81 mm — check gland plate clearance if the enclosure is shallow. The fixed mounting mode means it clips onto the rail and stays put — no DIN-rail adapter or additional bracket needed.
Dual-certified to IEC 60947-2 (industrial) and EN 60898 (domestic/similar) — the IEC 60947-2 rating governs industrial panel use; EN 60898 applies when installed in distribution boards to the residential/commercial standard. Relative humidity tolerance is 95 % at 55 °C. Maximum operating altitude is 2000 m without derating. Earth-leakage protection requires a separate residual current block (not integrated).