The NB1-63DC Miniature Circuit Breaker is specifically engineered for direct current (DC) circuits, providing reliable protection against overload and short-circuit faults in critical DC applications. Compliant with IEC/EN 60947-2 standards, this MCB is essential for safeguarding systems in solar photovoltaic (PV) installations, energy storage systems, communication equipment, and other specialized DC power distribution needs. Its robust design ensures enhanced safety and stable operation in demanding environments.