ABB ST203M-K0.5

The ABB ST203M-K0.5 is a compact, 3-pole miniature circuit breaker designed for reliable protection of low-current circuits. With a 0.5-amp rating and a K-curve trip characteristic, it’s built to handle up to 480Y/277V AC systems while delivering a solid interrupting capacity of 10 kAIC. This model, part of the ST200M Series, serves as an effective supplemental protector in various industrial setups. You might hear it called a "mini breaker" on the floor, and it meets key safety standards like UL 1077 and CSA 22.2. Distributed by BSP Automation, it offers a trusted option for safeguarding sensitive electrical equipment.