Key ratings and what they mean for fit
The Siemens 5SL4604-7CC is a miniature circuit breaker (MCB) from the Basic Devices family, rated 400 V with a 10 kA breaking capacity, 3+N-pole configuration, C-curve trip characteristic, and 4 A rated current. The C-curve means it trips at 5–10 times rated current — standard for mixed resistive-inductive loads like small motors, lighting circuits, and general-purpose branch protection in commercial or light-industrial panels. The 10 kA SCCR at 400 V is enough for most distribution boards downstream of a transformer; verify the prospective fault current at your panel's point of installation stays under that level to maintain coordination.