The Egis Mobile Electric Single XD is a 4-position DT relay designed for seamless NMEA 2000 integration in marine electrical systems. This unit provides remote monitoring of switch status and battery voltage while offering flexible manual or digital control options.Key Features: 500A continuous and 1600A cranking capacity per switch. Sealed to IP67/IP6K9K standards for durability in marine environments. Manual control knobs provide clear visual indication of locked-on or locked-off states. Programmable via simple dip switches for flexible installation. Advanced bi-stable solenoid design reduces mounting space and total system weight. Low power consumption with 90-95% less off-state current than standard alternatives. Supports battery charging management to prevent dead start batteries. Compatible with Link and Cross-Link busbars for multi-relay expansion in 2- or 3-battery systems. Each relay features stainless steel cable lug studs and accepts 1/4-20 or M6 hardware for mounting. Manufacturer part number: 9811-4500.