ABB ST203M-C1

The ABB ST203M-C1 is a reliable miniature circuit breaker designed for three-pole applications, rated at 1 amp and suitable for 480Y/277V AC systems. Part of the ST200M series, this breaker features a C-curve trip characteristic and a short-circuit interrupting capacity of 10 kAIC, making it well-suited for protecting supplemental circuits. Known among some pros as a solid “mini breaker,” it meets key safety standards like UL 1077 and CSA 22.2. You can find this dependable device conveniently available through BSP Automation, ensuring easy access for your control panel needs.