7620Manual Control: NoCoil Voltage: 12V DCCombines battery banks during charging and isolates under discharge 500 Ampere continuous rating suitable for use with large battery banks, starters, alternators, and inverter/chargers Includes ML-Series Remote Control Contura Switch PN 2146Silver alloy contacts provide high reliability 3/8" copper studs, using Blue Sea Systems superior one piece stud technology, suitable for 300 Ampere continuous rating and large cable connections WARNING: 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.