ABB ST203M-K40

The ABB ST203M-K40 is a 3-pole miniature circuit breaker designed to handle up to 40 amps at 480Y/277V AC. Part of the ST200M series, this breaker features a K-curve trip characteristic and offers a short-circuit interrupting capacity of 10 kAIC, making it a reliable choice for supplemental protection in various electrical setups. Known by catalog number 016779025007 as well, this compact device is a solid pick for keeping circuits safe and sound. Distributed by BSP Automation, the ST203M-K40 delivers dependable performance without any fuss, making it a straightforward solution for your circuit protection needs.