9002e e-Series Battery Switch Selector with Alternator Field Disconnect Features:Switches isolated battery banks to all loads or combines battery banks to all loadsIncludes AFD (Alternator Field Disconnect)Make-before-break contact design allows switching between battery banks without power interruptionIgnition protected-safe for installation aboard gasoline powered boatsCase design allows surface or rear panel mountingIncludes: AFD (Alternator Field Disconnect)CE MarkedIgnition protected - Safe for installation aboard gasoline powered boatsCase design allows surface or rear panel mountingMeets American Boat and Yacht Council (ABYC) requirements for battery switches3/8-16 tin-plated copper studs for maximum conductivity and corrosion resistance, accepts 3/8 and M10 ring terminals7/8 (22.22mm) stud length to accept multiple cable terminalsTactile textures indicate knob position by feel onlyWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.