ABB ST203M-B10

The ABB ST203M-B10 is a compact 3-pole miniature circuit breaker designed to handle up to 10 amps at 480Y/277V AC. Part of the ST200M series, this device features a B-curve trip characteristic and offers a short-circuit interrupting capacity of 10 kA, making it a solid choice for supplemental protection in various electrical setups. You might hear it referred to as a “mini breaker” on the job. This reliable component meets UL 1077 and CSA 22.2 standards and is available through BSP Automation, ensuring you have access to trusted equipment for your industrial needs.