Egis Dual XD NMEA 2000 ACR/ACR Switch with Knobs – 8 Position DT (9821-8330)

Upgrade your boat’s electrical control system with the Egis Dual XD NMEA 2000 ACR/ACR Switch with Knobs – 8 Position DT (9821-8330), a rugged and versatile battery control module designed to streamline multi-battery systems while integrating seamlessly with modern marine networks. Built by Egis Mobile Electric, this heavy-duty switch offers dual Automatic Charging Relay (ACR) functionality and intuitive physical knobs, giving you precise manual and networked control over battery charging and distribution. 

Constructed for harsh marine environments, the Dual XD features a sealed, IP67/IP6K9K-rated enclosure, corrosion-resistant components, and generous mounting options that make installation flexible and reliable. With 500A continuous and 1600A cranking capacity per switch, it supports powerful electrical systems and heavy loads found on larger boats and multi-battery setups. 

This unit integrates directly with NMEA 2000 networks, allowing monitoring and control through compatible multifunction displays or networked systems. Simple DIP-switch programmability gives installers and OEMs the flexibility to tailor function, while the manual knobs provide clear, on-board control of battery states—including manual override and lock-off positions. 

Key Features:

• Dual ACR Configuration: Provides two automatic charging relays for flexible battery charging management.

• Built-In NMEA 2000 Connectivity: Enables switch monitoring and control from your chartplotter or MFD. 

• Heavy-Duty Capacity: 500A continuous / 1600A cranking per relay supports robust marine electrical systems. 

• Manual Knobs: Easy-to-use rotary knobs for direct control and override settings. 

• Rugged Construction: IP67/IP6K9K sealed, high-temperature-rated housing with stainless steel lug studs. 

• Flexible Programming: DIP switches allow custom configuration to match system needs.

• Expandable System: Works with busbars and additional XD relays for larger battery setups. 

• Compact Design: Fits into standard electrical compartments without adding excess weight. 

Ideal for boaters who want intelligent battery switching, seamless network integration, and robust power handling, this ACR/ACR Dual XD switch simplifies complex electrical systems while improving efficiency and control on board.

Features:

• Bullet-proof Construction: Sealed to IP67/IP69K, high-temperature electronics and materials allow mounting anywhere. Stainless steel cable lug studs. Large mounting holes accept 1/4-20 / M6 attachment hardware.

• High Current Support: 500A continuous / 1600A cranking per switch, compatible with all standard marine electrical systems.

• Intuitive Manual Control: Simplifies operation with clear status indicators for manual override, lock-on, and lock-off functions.

• Simple Programmability: Easy dip switch configuration offers extensive flexibility for OEMs and installers.

• Energy Efficient: 90-95% less off-state current compared to similar competitive solutions.

• Seamless NMEA 2000 Integration: Control switches, monitor switch status, and battery voltage through NMEA 2000 network.

• Flexible Control Options: Operate via NMEA 2000 or discrete analog inputs for added versatility.

• Space and Weight Reduction: Advanced bi-stable solenoid design reduces mounting space and overall weight.

• Battery Management: Shares charging between two batteries and isolates batteries when no charge sources are present.
• Expandable System: Supports up to three battery systems with link and cross-link busbars, compatible with standard interconnect accessories