The Schneider Electric Acti9 DT40 A9N21020 is a genuine 1P+N Miniature Circuit Breaker (MCB) designed for reliable electrical circuit protection. This thermal-magnetic circuit breaker features a 2A rated current and a C tripping curve, suitable for general applications. It offers a 4.5kA breaking capacity at 230V AC, conforming to EN/IEC 60898-1 standards. With a compact 36mm width (2 modules) for DIN rail mounting, it includes a contact position indicator and fault current breaking indicator for enhanced safety and ease of use. It has a mechanical durability of 20,000 cycles and an electrical durability of 10,000 cycles.