25 A C-curve MCB for three-phase + neutral protection
The Siemens SENTRON 5SL4625-7 is a 4-pole miniature circuit breaker (3P+N) rated 25 A with a C tripping characteristic, designed for 400 V AC multi-phase circuits. At 25 A and 400 V, this 3P+N breaker covers three-phase loads with a switched neutral — common in European distribution boards.
At 72 mm wide (4 modular width units), it occupies four standard 18 mm slots. Sealable design (padlockable toggle) for lockout/tagout.
Rated 10 kA under both EN 60898 (domestic standard) and IEC 60947-2 (industrial standard). That dual rating means it's accepted in residential infrastructure and light industrial sub-distribution alike. Energy limitation class 3 keeps let-through energy low enough for most downstream equipment to survive a fault without damage. The 440 V maximum operating voltage gives headroom on a 400 V nominal supply.