Features: High capacity 250A busbars Box with 8mm terminals ensures secure power distribution for RVs, marine vessels, and automotive systems using corrosion resistant copper and stainless steel components. Features color coded housing with PC insulation and oxidation proof coating, providing 12 48V compatibility through 4 reinforced 8mm (5/16") studs for vibration resistant connections. Ideal for DIY enthusiasts upgrading auto sound systems, marine engineers maintaining yacht electrical grids, and owners installing solar power arrays requiring heavy duty current transfer. Performs reliably in saltwater marine environments, off campervan setups, electric vehicle conversions, and industrial equipment requiring 48V power distribution blocks. Pre assembled busbars kit simplifies installation of auxiliary lighting, winches, or inverters while preventing polarities reversal accidents through intuitive color differentiation. Specifications: Material: PC+Copper+Stainless Steel Size: about 54x152x168mm/2.12x5.98x6.61inch Package Includes: 1 set busbars Block note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item.