DC circuit breakers are specialized protection devices designed to interrupt direct current flow in case of overloads or short circuits. They’re essential in applications with DC power such as solar PV systems, battery-energy storage, EV charging, and HVDC grids. With the global push toward renewable energy, electrification, and grid modernization, demand for reliable, fast-acting DC breakers is growing steadily. Key challenges include high design complexity, cost, and ensuring safety standards under continuous DC load.