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. Some of the blocks come with clear covers. A fuse block can either be independent, where each fused circuit has an input wire and an output wire, or ganged, where power is shared among all the circuits. Independent fuse blocks require two wires to be run for each fuse, one from the power source, and one to the accessory.. A ganged fuse panel requires a heavier power wire to be run to the panel, and a single wire runs out to each accessory in the system.