Basic Parameters2 x busbar distributor block, 250 A bus bar box with 4 x M8 terminal bolts, high performance module, 12 V-48 V DC power distribution block, grounding current for car, RV, boat, yacht (red, black)Max Amperage: 250 Amps 12V DC, Max Voltage: 48V DCBuilt for Safe Nickle plated copper busbar plates offer low resistance, maximum conductivity, and corrosion protection. The nylon nuts connect to two external studs to prevent accidental short circuits. A removable Nylon cover keeps metal components from making contact with anything. The insulated nylon base is flame-retardant.Distribute Power More Efficiently Provides several large gauge connections for running a dedicated ground to the battery and offers more minor gauge connections for lower voltageWide Applications bus bar is an excellent circuit collection wire Harness in the car, RV, yacht, caravan, and ship power system.Package inclusion: 2pcs 4 Post M8 Power Distribution Block Terminal Screw Bus Bar (RedandBlack Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.