[ HIGH-QUALITY MATERIAL ]: Each Battery Distribution Block is made of High-quality materials for good electrical conductivity and rugged rust resistance, durability and long-lasting performance, even in harsh marine environments. It is designed to resist rain and dust, air, and seawater. [ VERSATILE VOLTAGE COMPATIBILITY ]: Each Power Distribution Block is designed to handle up to 300A of AC and is compatible with 12V, 24V, and 48V DC , providing flexibility in its use. [ SAFETY PROTECTION ]: The base is made of Nylon-Glass Fiber reinforced (flame-retardant plastic) to protect the safety of equipment and people. [ EASY INSTALLATION ]: The Terminal Block is mounted with screws on the and four mounting holes make the block easier to install in any direction. The removable window allows for unobstructed wiring. [ WIDE APPLICATION ]: It is suitable for cars, RVs, Trucks, Boats, Solar Energy, and other Electrical Equipment, etc. Max Operating Voltage: DC 48V Max Continuous Currents: 300A Terminal Stud Size: 4 x M10 (3 or 8inch) Color: Black and Red Material: Nylonandstainless steel Package Contents: 2 Distribution Block Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.