What it is and what it does
The Siemens 5SL4504-8CC is a 1+N-pole miniature circuit breaker (MCB) with a D tripping characteristic, rated 4 A at 230 V and a 10 kA breaking capacity. The D curve means it tolerates the high inrush currents typical of motor starting or transformer energization without nuisance tripping — the magnetic trip threshold is 10 to 20 times rated current, so it's a fit for inductive loads where a B or C curve would drop out on the first cycle.
Compliance and classification
RoHS compliant since 01-06-13. REACH candidate-list information is available on request. Export control is AL:N / ECCN:N — no special licensing required for standard commercial shipment. The Group Code is P310 and Product Group is 3824, which are Siemens internal classification codes used for catalog sorting and cross-reference lookups.