The Siemens 5SL3025-7 is a SENTRON miniature circuit breaker in a compact 1-module-wide (18 mm) package, rated 4.5 kA per EN 60898 at 230 V AC with a C tripping characteristic. The unit is IP20 with conductors connected, overvoltage category III, and accepts supplementary devices for expanded functionality.
The 4.5 kA breaking capacity per EN 60898 covers most domestic and small commercial fault levels; if your installation requires higher SCCR (e.g., 6 kA or 10 kA), step up to the 5SL6 series. The 1P+N design switches the neutral, which is required in many national wiring rules for final circuits. The 18 mm width (1 modular unit) means it occupies one standard DIN-rail slot — critical for panel fill factor when you're packing multiple ways into a consumer unit or sub-distribution board.
Compliance documentation: the part carries IEC/EN 60898-1 and GB/T10963.1 standards.