500A magnetic latching relay automatically combines batteries during charging and isolates batteries when discharging and when starting engine. LED output to remotely indicate switch state - requires optional LED or Remote Control Contura Switch with integrated LED. 3/8"-16 tin-plated copper studs for maximum conductivity and corrosion resistance. One-piece stainless flange nuts ensure safe and secure connections. Silver alloy contacts provide high reliability for live switching. Includes a Remote Control Contura Switch.
