ABB ST203M-K3

The ABB ST203M-K3 is a compact 3-pole miniature circuit breaker designed to handle 3 amps at 480Y/277V AC. Featuring a K-curve trip characteristic and a 10 kA interrupting rating, this breaker offers reliable protection for various electrical circuits. Part of the ST200M Series of supplemental protectors, it meets key safety standards including UL 1077 and CSA 22.2. For those in the know, it’s a solid choice when you need a dependable breaker that packs a punch without taking up much space. Available through BSP Automation, the ST203M-K3 blends performance and durability, making it a go-to for many industrial applications.