12V to 48V 250A DC Busbar Distribution Block with 4 M8 Terminal Studs for RV Boats Yachts High Power Module Features： 1、Powerful Function: With 4xM8 bolt terminals for seamless connection, this distribution box is for organizing and protecting electrical systems in vehicles and boats. 2、 Materials: Made of reinforced ABS and nylon base, with stainless steel bolts and nuts for enhanced rust resistance in saltwater or harsh environments. 3、Wide Application: Suitable for RVs, solar panels, cars, trucks, yachts, and boats, this DC power distribution block can efficiently collect and store all cables in your vehicle or vessel. 4、Rated for High Performance: Each bolt has a 62.5A current rating, with a total block current rating of 250A and 20A for the auxiliary terminal screws. Maximum voltage is 48V DC. 5、Compact Design: Measuring 170mm x 33mm x 53mm with an installation hole distance of 147mm, this distribution block offers a simple and modular wiring configuration for a neat and organized electrical system. Specification： Item Type: Busbar Distribution Block Material: ABS, Metal Sizes: Approx. 170mmx33mmx53mm / 6.69inx1.30inx2.09in Mounting Hole Spacing: Approx. 147mm / 5.79in Rated Current: 250A Package List： 2 x?Busbar?Box (Black and Red) 4 x Screw