***** **********Best Quality Guranteed. *****St blade fuse block - 12 circuits with negative bus and cover*****Positive distribution bus with #10-32 stud*****Can be used for 24-hour circuits*****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*****Accepts ATO and ATC fast acting blade fuses