The ABB ST201M-B25 is a reliable miniature circuit breaker designed for single-pole applications, rated at 25 amps and suitable for voltages up to 480Y/277V AC. This device features a B-curve trip characteristic, making it ideal for protecting circuits with moderate inrush currents. With a breaking capacity of 10 kAIC, it ensures safe interruption of fault currents, helping to keep your system protected from overloads and short circuits. Part of the ST200M series, this breaker meets key safety standards including UL 1077 and CSA 22.2. Distributed by BSP Automation, the ST201M-B25 is a solid choice when you need dependable circuit protection that’s built to last. In the field, it’s often referred to by its catalog number or simply as the ‘breaker’—a trusty piece of gear to have on hand.