The Siemens 5SY4513-7CV is a 1P+N miniature circuit breaker with a C13 tripping curve and a 15 kA rated ultimate breaking capacity (Icu) at 230/400 V AC. The C13 curve means the magnetic trip initiates between 5× and 10× In (65 A to 130 A for this 13 A unit), so it handles motor inrush and transformer energization without nuisance tripping while still clearing hard faults fast.
Because it is a current-production part, you can specify it into a BOM freeze without a last-time-buy clock.
The single-module width (roughly 18 mm) keeps fill factor tight — one pole switched, one neutral solid through. The C13 curve suits mixed loads in a final sub-circuit: lighting banks, small motorized valves, control transformers, or receptacle circuits where the load has a moderate starting surge.