It carries a 4.5 kA breaking capacity per EN 60898 and 5 kA per IEC 60947-2, covering residential and infrastructure branch-circuit protection.
The 4.5 kA rating under EN 60898 is the standard for domestic final circuits; the 5 kA under IEC 60947-2 gives a slightly higher fault-clearing margin for industrial panel coordination. Both values are at 400 V AC, so the breaker can be applied in a 230/400 V TN or TT system without derating the interrupting rating. Energy limitation class 3 means the 5SL3625-7 limits let-through energy enough to protect downstream wiring and devices in a typical selective-coordination study. The 25 A C-curve handles motor inrush and lighting loads without nuisance tripping on start-up.
The 72 mm width (4 modular units) matches the standard 18 mm per-pole DIN-rail footprint for 3P+N breakers. Rated for ambient -40 °C to 75 °C, pollution degree 2, overvoltage category III. Halogen-free and silicon-free construction suits environments where outgassing or contamination is a concern (e.g., food processing, clean rooms). Sealable terminals allow tamper-proof locking after commissioning.