Fully insulated, fully sealed structure, no insulation distance, reliable guarantee personal safety. The utility model has the advantages of dust prevention, flood resistance, corrosion resistance and no maintenance, and can be used for outdoor and water immersion. The combination is very flexible, the branch line can be up to eight lines, to meet a variety of wiring requirements. Small size, compact structure, simple installation, easy to operate. 200A branch cable connector can be used as a load switch, load plug, and has the characteristics of isolation switch. Short circuit fault indicator can be used to quickly find cable fault. There are a variety of material can choose: ordinary steel, stainless steel, stainless steel military green with green military etc..