Blue Sea Systems ST Blade Compact 4 Circuit Fuse BlockBlue Sea Systems' Compact Fuse Blocks provide surface mount circuit protection for ATO/ATC fuses in a compact footprint. Includes a cover and four write-on circuit labels. The insulating cover meets ABYC/USCG insulation requirements. Ignition protected when cover is secure - meets ISO 8846 and SAE J1171 for use in a gasoline engine compartment; Single side design allows wire entry from one side to minimize footprint; Tin-plated copper buses and fuse clips; Accepts ring or snap fork type terminals; Includes 4 write-on circuit labels; Fuses sold seperately ; Specifications:Circuits: 4Maximum Amperage: 100A per block | 30A per circuitMaximum Voltage: 32V DCMounting: #8 Screw (M4)Screw Terminal Type: #8-32 Screws with captive star lock washerTerminal Stud Size: #10-32