Blue Sea 5026 12 Circuit Fuse Block with Cover and powerwerx›DC Power Products›Fuses & Circuit ProtectionBlue Sea 5026 12 Circuit Fuse Block with Cover and Negative Bus Quality fuse block accepts standard ATC/ATO fuses. Positive distribution bus with #8-32 stud. 12 circuit design. 100 Amp max per block, 30 Amp max per circuit.Price: 39 ST Blade Fuse Block - Blue Sea Systems Use the Blue Sea Systems Circuit Wizard to select the correct wire size, circuit breaker or fuse type and amperage, and fuse holder. 5026. Consolidates branch circuits and in-line fuses. The 6 or 12 position ST Blade Fuse Block then provides a consolidated location for fuses for each of the electronics.