Designed for positive or negative DC distribution or collection of AC neutral or safety ground circuits. Constructed of corrosion resistant tin-plated Copper and ABS with a polycarbonate cover. Includes four 5/16" -18 stainless steel stud terminals. Requires four #8 FH fasteners (included). Maximum: 48VDC, 300A; 300VAC, 300A. CE, RoHS compliant.