ABB ST202M-K3

The ABB ST202M-K3 is a 2-pole miniature circuit breaker designed for reliable protection in electrical systems. Rated at 3 amps and suitable for 480Y/277V AC applications, this breaker features a K-curve trip characteristic, making it well-suited for handling moderate inrush currents without nuisance tripping. It offers a breaking capacity of 10 kAIC, ensuring strong performance under fault conditions. Part of the ST200M series, this device meets UL 1077 and CSA 22.2 standards, so you know it plays it safe. Distributed by BSP Automation, the ST202M-K3 is a solid choice when you need compact and effective supplemental circuit protection. In the trade, some folks might call it a trusty little breaker—or just a “mini breaker” when they’re in a hurry.