【OPTIMAL CONDUCTIVITY】12v fuse block has positive & negative poles. Max operating voltage for the terminal block is 32V DC, this fuse box with max 30A per circuit & 100A per panel. 【SAFE MATERIAL】Made of environment friendly PBT material, this boat fuse block meets all the standards of an ideal boat fuse panel. It is mechanically strong, insulated, heat resistant and flame resistant. It hardly lead to break, deformation, combustion or short-circuit. 【LED SAFETY INDICATOR】 Red LED warning light will light up immediately when a blown fuse is detected. It is much safer and easier for you to check and replace the blown fuse without guessing. 【DIY STICKERS】Comes with a multifunctional DIY sticker for convenient examination & repair. You can easily identify which device is wrong, which is definitely suitable for outdoor troubleshooting. 【WIDE APPICATION】This Fuse Box widely used in Cars, Buses, Tankers, Boat,, Yacht,Ships etc.Package includes 1 x 12-Way fuse block with Protection Cover,6 x 20A Fuse,6 x 15A Fuse,6 x 10A Fuse,6 x 5A Fuse,4 x Screw,2 x Sticker. fuse block,12v fuse block,marine fuse block,marine fuse panel,auto fuse block,fuse box,boat fuse panel,fuse blocks 12 volt automotive,12 volt fuse blocks,12v fuse panel,fuse panel,fuse box 12v,fuse blocks 12 volt marine,blue sea fuse block,automotive fuse block,waterproof fuse block,12v terminal block,fuse box labels,fuse box,fuse panel,decorative fuse box covers,fuse box 12v,blue sea fuse block,fuse box automotive,boat fuse panel,fused distribution block,automotive fuse block,auto fuse block,boat battery box,fuse blocks 12 volt marine,sound proof box,panel box,waterproof fuse block,fuse box labels