Battery Selector Switch with AFDPart No. 2110ADescriptionContinuous Amps: 230Momentary Amps: 345Dimensions: 5"D x 2-3/4"H Product FeaturesAlternator field disconnect (AFD) allows selection of any positions, including "off" without damage to alternator or electrical system. AFD is required on some electrical systems.Heavy duty copper sweep contacts"Make before break" contacts allow selection of all positions except "off" while engine is runningUse with 6, 12, 24 or 36 volt systemsNew design is easy to retrofit into existing hole patternsBuilt-in skirt protects connectionsExclusive flat 360 degree "sweep" contact design provides up to 60% more contact area than other switch designsSurface or rear panel mountingMarine grade constructionOne year warrantyWARNING: 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.