The ABB S203P-C32 is a 3-pole miniature circuit breaker rated 32 A with a Trip Curve C characteristic, designed for DIN-rail mounting in distribution panels and control cabinets. Its 10 kA interrupting capacity at 277 VAC means it can safely clear a fault up to that level without upstream devices needing to intervene — a key coordination point when the panel feeds motor circuits or sensitive loads.
Trip curve and selectivity
Curve C trips magnetically between 5 and 10 times rated current (160–320 A for this 32 A unit). That makes it a standard choice for general-purpose distribution where inrush from small motors, transformers, or lighting ballasts stays below the magnetic threshold. For a panel feeding a mix of resistive and moderate inductive loads, Curve C gives a clean selectivity window downstream of a higher-rated upstream device.