Features: Max voltage: 48VDC. Max continuous amperage: 250ADC. Max intermittent: 20A per connection (less than 1 minute). So whether your working on a boat, a car, or an RV, we've got you covered. Low resistance, maximum conductivity and corrosion for 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. Provides several large gauge connections for running a dedicated ground to the battery and offers more minor gauge connections for lower voltage. The bus bar is an excellent circuit collection wire Harness in the car, RV, yacht, caravan, and ship power system. The busbar holds wide cables securely to keep the wires neat. Package Includes: 1x Power Distribution Block Specifications: Material:ABS,Metal Color:Black,Red Type:M8(5/16") Stud,M10(3/8") Stud Maximum voltage: 48V for DC Current rating per stud: 62.5A Rated current of the whole electric block: 250A Auxiliary terminal screw current: 20A Length:Approx.17cm/6.69in Net Weight:210-250g note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.