The ABB S802S-UCB32 is a 2-pole high-performance miniature circuit breaker rated at 32 A with Trip Curve B, designed for DIN-rail mounting in control panels and distribution boards. It handles 480 VAC and 250 VDC circuits, with a 50 kA interrupting capacity on both AC and DC sides — meaning it can safely clear a fault up to 50,000 amps without welding contacts or cascading damage upstream.
Trip Curve B means the breaker trips magnetically at 3 to 5 times rated current (96–160 A instantaneously), so it's suited for resistive or lightly inductive loads — lighting banks, heating elements, control transformers — where inrush is low. On the DC side, 50 kA at 250 VDC covers battery banks, UPS outputs, and DC bus feeds in industrial drives.