9002e e-Series Battery Switch Selector with Alternator Field Disconnect. Features:. Switches isolated battery banks to all loads or combines battery banks to all loads. Includes AFD (Alternator Field Disconnect). Make-before-break contact design allows switching between battery banks without power interruption. Ignition protected""safe for installation aboard gasoline powered boats. Case design allows surface or rear panel mounting. Includes:. AFD (Alternator Field Disconnect). CE Marked. Ignition protected - Safe for installation aboard gasoline powered boats. Case design allows surface or rear panel mounting. Meets American Boat and Yacht Council (ABYC) requirements for battery switches. 3/8"-16 tin-plated copper studs for maximum conductivity and corrosion resistance, accepts 3/8" and M10 ring terminals. 7/8" (22.22mm) stud length to accept multiple cable terminals. Tactile textures indicate knob position by feel only. WARNING: This product can expose you to chemicals including di(2