The Siemens SENTRON 5SL4625-8 is a 4-pole miniature circuit breaker (3P+N) with a D tripping characteristic, rated 25 A at 400 V AC. Its 10 kA breaking capacity per EN 60898 and IEC 60947-2 covers most residential and light commercial fault levels. The 4-module-width (72 mm) body snaps onto standard DIN rail — no adapter needed for the neutral pole.
D-curve and breaking capacity
D-curve trips between 10× and 20× rated current, so this 25 A breaker holds through motor inrush and transformer energization without nuisance tripping. The 10 kA interrupting rating at 400 V AC is the same under both EN 60898 and IEC 60947-2 — no derating between standards for this variant. Rated impulse withstand voltage matches overvoltage category III, suitable for fixed-installation distribution boards.
Panel fit and environmental limits
Four modular width units (72 mm wide, 76 mm deep, 90 mm tall) occupy a standard DIN-rail slot. Mounting position is unrestricted — horizontal or vertical in the enclosure. IP20 with connected conductors limits it to dry indoor panels; pollution degree 2 (non-conductive deposits only) matches typical residential or commercial distribution boards. Ambient range from -40 °C to 75 °C covers unheated service entrances and rooftop enclosures.