EGIS MOBILE ELECTRIC XD NMEA 2000 Dual - (VSR/Relay), with Knobs - 8P DT NMEA 2000 controllable, while also responding to optional discrete remote controls. Reports switch status, status of manual override knobs, and battery voltage on input terminals to the NMEA 2000 network. Optional manual override knobs allow locking switches ON or OFF for servicing or when control power is lost. Replaces Two Individual High Amp Relays with One Compact NMEA 2000 reporting 500 Amp Module, reducing space significantly, eliminating cost of external link cable connections, eliminating risk of link cable connections vibrating loose, and providing clear, unambiguous awareness of how operate manual controls and what state the manual controls have forced the relay into. Designed to Replicate Common Multi-Battery Switching and Charge Management Functions: Common dual-battery load switching via the outer relays, and a central automatic charging relay to share charge current, are easily implemented. Multiple Automatic Charging Relay (ACR) Into One Device: For 2-3 Battery Systems that require 1 or 2 ACRs, a single two-relay ACR provides a drastic improvement in off-state quiescent current draw and space usage, while reducing unnecessary interconnection cables.