Blue Sea Systems Waterproof In-Line ATO/ATC Fuse Holder Go to amazon.com Related posts The 6 best inline fuse holder FeatureFor use with ATO or ATC fusesSupplied with 12 AWG pigtails30A Maximum fuse amperageFor use with Blue Sea Systems' ANL Fuse Blocks DescriptionFor use with ATO or ATC fuses Supplied with 12 AWG pigtails 30A Maximum fuse amperage For use with Blue Sea Systems' ANL Fuse Blocks.