What the ratings mean for fit
The Siemens 5SL4620-7CC is a 3+N-pole miniature circuit breaker rated 20 A with a C-trip curve and a 10 kA breaking capacity at 400 V. The C-curve means it trips between 5 and 10 times rated current — suited for moderate inrush from motor starters or lighting banks in commercial and light industrial panels. The 10 kA SCCR at 400 V tells you it can safely interrupt a fault up to that level without upstream damage, provided the panel's prospective short-circuit current stays within that limit. RoHS compliance is confirmed since 01-06-13.