The Siemens 5SL4150-6CC is a 1-pole miniature circuit breaker rated 50 A with a B tripping characteristic and a 10 kA breaking capacity at 230/400 V. This is the standard MCB for protecting branch circuits against overload and short circuit in residential and commercial distribution boards — the B curve means it trips at 3–5 times rated current, suited for resistive and general-purpose loads where inrush is moderate.
Integration Note
Snap-on DIN rail mounting per EN 60715. The 1-pole width (1 module = 17.5 mm) fits standard consumer unit or panelboard layouts. Rated for 230/400 V AC — the 10 kA Icn at 400 V means it safely interrupts fault currents up to that level without upstream cascading, provided the prospective short-circuit current at the installation point does not exceed 10 kA. Coordination with upstream SENTRON series S-LVC or NH fuse-links is per Siemens selectivity tables.