ABB ST203M-C50




The ABB ST203M-C50 is a 3-pole miniature circuit breaker designed to handle 50 amps with a voltage rating of 480Y/277V AC. It features a C-curve trip characteristic, making it ideal for protecting circuits with moderate inrush currents. Rated for an interrupting capacity of 10 kAIC, this breaker provides reliable protection within the ST200M series of supplemental protectors. You might also see it referenced by its alternate number, 016779024840. Distributed by BSP Automation, this breaker is built to meet industry standards including UL 1077 and CSA 22.2 certifications, making it a solid choice to keep your electrical setup safe and sound.
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