Amazon: waterproof fuse box: Automotive Online shopping from a great selection at Automotive Store. 6 Way Fuse Block Blade Fuse Box Holder, 6 Circuit Car Ato/Atc Fuse Block Waterproof with 20Pcs Fuse & LED Indicator & Protection Cover for 12V/24V Automotive Truck Boat Marine Bus RV Van Vehicle Fuse Blocks - Automotive - WiringProducts. Ltd. Automotive fuse blocks for power distribution in automotive, marine, motorcycle, RV, and other 12 volt and 24 volt electrical systems. Fuse blocks are available in 2 to 12 circuits. Most of our fuse blocks and fuse panels use the ATC style fuse, but we also carry some that use the AGC fuse, and the higher power AGU and ANL fuses.