Blue Sea Systems ST Blade Fuse Block - 6 Independent Circuits w/ Cover Corrosion resistant, tin-plated copper fuse clips reduce heat and improve the efficiency of the electrical system; Clear insulating cover with label recesses accepts Small Format Labels; Spare fuse holder in cover; Accepts ring terminals; Includes two terminal block jumpers; Specifications: Circuits: 6; Maximum Amperage: 30A per circuit/40A per jumped circuit group; Maximum Voltage: 32V DC; Mounting: #8 Screw (M4); Screw Terminal Type: #8-32 with Captive Star Lockwasher;