Blue Sea ST Blade Fuse Block 6 Circuits with Negative Bus & Cover, 5 Year Warranty Consolidates branch circuits and in-line fuses: Positive distribution bus with #10-32 stud Can be used for 24-hour circuits Models available with or without a cover Cover satisfies ABYC/USCG requirements for insulation, incorporates an easy to open push button latch providing easy access to fuses, storage for two spare fuses, and label recesses that accept Blue Sea Systems Small Format Labels for circuit identification Fuse blocks with covers include 20 write-on circuit labels Tin-plated copper buses and fuse clips Accepts ring or spade type terminals Accepts ATO and ATC fast acting blade fuses Fuses sold separately