Catalog detailing Schneider Electric's DC circuit breaker product lines including PacT Series, ComPacT NSX, ComPacT INS/INV, and MasterPacT NW. The document covers technical specifications, installation recommendations, dimensions, electrical diagrams, and ordering information for DC applications ranging from 16 to 4000 A. It includes detailed information about photovoltaic applications, marine applications, and enhanced performance versions for various voltage ratings. AI-assisted summary (Full document authored and validated by Schneider Electric experts).