80 A, Curve K, 50 kA — what that means for your panel
The S802S-K80 is an ABB high-performance miniature circuit breaker, 2-pole, rated 80 A continuous at 230 VAC. The Trip Curve K characteristic means it trips between 8 and 12 times rated current on short-circuit — designed for motor and inductive loads where inrush is higher than a resistive load but you still want fast clearing on a hard fault. That SCCR matters when the upstream transformer is big or the available fault current is known to be high — it avoids cascading failure downstream.