The Siemens 5SL6563-7CC is a 1+N-pole miniature circuit breaker rated 63 A with a C-trip curve, breaking capacity of 6 kA at 230 V. It's a current-production Basic Device from the 5SL6 family, meaning it's still a standard catalog line — no last-time-buy scramble needed for this one.
What the ratings mean for the panel
The C-curve (magnetic trip between 5 and 10 times In) is the standard choice for general-purpose distribution and moderate motor inrush — think lighting subcircuits, socket outlets, small pumps. At 63 A it's sized for a main incomer in a small sub-distribution board or a heavy feeder. The 6 kA breaking capacity at 230 V is adequate for most commercial and light industrial installations where the prospective short-circuit current stays under that threshold; if your transformer is close or you're in an industrial plant with high fault levels, check the upstream SCCR coordination. The 1+N-pole configuration switches both line and neutral, with overcurrent protection on the line pole only. That's typical for single-phase final circuits where you want the neutral switched for isolation but don't need a double-pole thermal element.
Sourcing and fit
This is a standard DIN-rail mount MCB — snaps onto a 35 mm rail, occupies two modular spaces (1+N). The 63 A rating and C-curve are printed on the front face, so a quick visual check confirms the BOM match. Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.