The Siemens 5SL4650-8CC is a 3+N-pole miniature circuit breaker rated 400 V with a 10 kA breaking capacity, D-curve trip characteristic, and 50 A rated current — a standard DIN-rail device for protecting branch circuits against overload and short-circuit in commercial and industrial panelboards.
The D-curve trips between 10× and 20× In (500 to 1000 A instantaneous), which suits loads with high inrush currents — motor starters, transformers, welding equipment, or large capacitor banks — where a B or C curve would nuisance-trip on startup. The 10 kA breaking capacity at 400 V means it can safely interrupt a fault current up to that level without welding contacts or cascading failure upstream; adequate for most secondary distribution panels where the prospective short-circuit current stays under 10 kA.
Listed as current production (active lifecycle status).
Compliance documentation
RoHS compliant since 01-06-13. REACH Article 33 duty to inform applies: the part contains lead (CAS-No. 7439-92-1) above 0.1% w/w in the candidate list.