ABB ST203M-D63

The ABB ST203M-D63 is a 3-pole miniature circuit breaker rated for 63 amps, designed to handle loads up to 480Y/277V AC. Part of the ST200M series, this breaker features a D-curve trip characteristic, which makes it well-suited for protecting circuits with moderate inrush currents, such as motors or transformers. It's built to meet UL 1077 and CSA 22.2 standards, ensuring reliable supplemental protection in industrial settings. Distributed by BSP Automation, this model strikes a good balance between compact size and robust performance, making it a solid choice when you need dependable circuit protection without any fuss.