7620. Manual Control No. Coil Voltage 12V DC. Combines 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 2146. Silver 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 Manual Control No. Coil Voltage 12V DC Combines battery banks during charging and isolates under discharge. 500 Ampere continuous rating su Includes ML-Series Remote Control Contura Switch PN 2146. Silver alloy contacts provide high reliabi 3/8 copper studs, using Blue Sea Systems superior one piece stud technology, suitable for 300 Amper