ABB ST203M-K6

The ABB ST203M-K6 is a 3-pole miniature circuit breaker designed to handle up to 6 amps at 480Y/277V AC. This device features a K-curve trip characteristic, making it well-suited for protecting supplemental circuits with reliable, fast response to overloads and short circuits. Rated with a breaking capacity of 10 kAIC, it ensures solid protection under fault conditions. Part of the ST200M series, this breaker meets UL 1077 and CSA 22.2 standards, giving you confidence in its safety and performance. Distributed by BSP Automation, this compact yet robust breaker is a great pick for those needing dependable supplemental circuit protection — in other words, it’s a solid piece of gear you can count on.