ABB ST203M-C6 is a three-pole miniature circuit breaker rated at 6 A with a C-curve trip characteristic, designed for 480Y/277 V AC circuits. It offers a 10 kA interrupting capacity and UL 1077 listing, making it suitable for protecting control panels, automation circuits, and other low-voltage industrial applications. In ABB’s catalog lineage, the model is also referenced as S203M-C6 (2CDS273001R0064 / 2CDS273334R0064), reflecting its role as a compact protective device for overcurrent protection in panel boards and related equipment.
