A cable branch box is a compact enclosure designed to safely distribute and branch electrical power from main cables to multiple secondary circuits (up to 35 kV). Commonly used in urban grids, industrial parks, and renewable energy systems, it ensures organized cable management, insulation, and protection against environmental factors. Key features include modular compartments, corrosion-resistant materials (stainless steel or thermoplastic), and IP65-rated sealing for dust/water resistance. Equipped with surge arresters, grounding terminals, and fire-retardant coatings, it enhances safety and minimizes fault risks. Compliant with IEC 61439 standards, modern variants support smart monitoring via IoT sensors for real-time load tracking. Ideal for underground or overhead installations, it optimizes grid reliability, simplifies maintenance, and adapts to expanding power networks.