Harvard MarineOEM Canvas - Covers - Parts - Accessories - ElectricalPlumbing - Trailer Parts - Shrink Wrap Parts & Service - Zincs & More! Blue Sea Systems Boat Marin 9001E E-Series 4 Position Selector Battery Switch 350 Ampere continuous rating for inboard gasoline and diesel engines. One-piece tin-plated copper stud design never loosens over time. Terminal studs accept 38 or M10 ring terminals. Ignition protected and UL Listed. Selector features make-before-break contact design. Color: Red.