ABB ST201M-D40

The ABB ST201M-D40 is a reliable miniature circuit breaker designed for single-pole applications, capable of handling up to 40 amps at 480Y/277V AC. Featuring a D-curve trip characteristic and a 10 kA interrupting capacity, this breaker offers solid protection for supplemental circuits. Part of the ST200M series, it complies with UL 1077 and CSA 22.2 standards, ensuring trusted performance in demanding industrial settings. Distributed by BSP Automation, this compact yet tough device helps keep your electrical systems running smoothly and safely—definitely a solid pick when you need dependable circuit protection without any fuss.