Blue Sea Systems 7620 Ml Series Automatic Charging Relay, 12V - 7620-Bss - 661-7620F1

500 Amp magnetic latching (bi-stable) relay automatically combines batteries during charging and isolates batteries when discharging and when starting engine. Start Isolation (SI) can be configured for temporary isolation of House loads from Engine circuit during engine cranking to protect sensitive electronics. Engine Isolation (EI) can be configured for isolation of two engines while both are running to protect engine electronics and maximize alternator output. Manual override knob provides an added level of safety allowing control with or without power and offering LOCKED OFF capability for servicing. Magnetic Latching (ML) relay draws very low current in the ON stateSenses charging on two battery banksLED output to remotely indicate switch state3/8"-16 tin-plated copper studs for maximum conductivity and corrosion resistance7/8" stud length accepts multiple cable terminalsOne-piece stainless flange nuts ensure safe and secure connectionsLabel recesses for circuit identificationSilver alloy contacts provide high reliability for live switchingIncludes Remote Control Contura Switch (2146)