S803C-C32 — 32 A C-Curve MCB, 3-Pole, 15 kA
For purely resistive loads or long cable runs, a B-curve would trip faster; for high-inrush transformer or motor feeders, a D-curve would ride through. In a panel where the prospective short-circuit current (PSCC) is known to be 10 kA or less, this gives solid headroom. The DC interrupting rating of 10 kA covers DC bus or battery-backed circuits where the arc extinction is harder than on AC.
