The Siemens SENTRON 5SL6225-6RC is a 2-pole miniature circuit breaker with a B tripping characteristic, rated at 25 A at 30 °C and 415 V AC.
The B-curve trips between 3 and 5 times rated current — 75 A to 125 A for this 25 A unit. The 7.5 kA breaking capacity at 415 V AC (per EN 60898) is the interrupting rating under the standard for household and similar installations; it is not the same as an IEC 60947-2 industrial breaker rating, so verify the prospective fault current at the installation point. Rated for 72 V DC maximum, so it can also serve DC branch circuits within that voltage limit.
Panel integration
The 36 mm width occupies two 18 mm modular spaces. Sealable design allows padlocking in the OFF position for lockout/tagout.