ABB S202-K4A Two Pole Industrial Circuit Breaker

ABB S202-K4A is a two-pole miniature circuit breaker in ABB’s System Pro M Compact S200 family, delivering a 4 A nominal rating with a Curve K tripping characteristic for protecting small to medium industrial circuits. The unit is designed for DIN-rail mounting and suits 230/400 V AC distributions, rated for 50/60 Hz operation, and capable of interrupting up to 6 kA (Icu) at that voltage. The catalog entry 2CDS252001R0337 identifies this model as a 2P, 4 A, Curve K MCB; some regional listings list a 440 V AC maximum rating. With its 2P configuration, this breaker protects paired conductors in panelboards and control cabinets, providing reliable overload and short-circuit protection for loads with moderate inrush, such as motors, conveyors, or lighting circuits in industrial environments.