ABB S203-K8A is a 3-pole miniature circuit breaker from the S200 family, designed for DIN-rail mounting in industrial control panels. It is rated 8 A with a K-curve inverse-time characteristic and provides a 6 kA short-circuit current rating, UL 1077 recognized. The device is cataloged as 2CDS253001R0407 (S203-K8A) and is intended for 3-phase systems up to 480 V AC. Typical applications include protecting three-phase feeders and motor-control circuits in industrial panels and power-distribution enclosures.
