Single Lithium Battery Disconnect Switch NMEA 2000 - Egis 9815-4300B
Modern remote lithium battery disconnect switch with ACR Function - with knob and 4P DTM connector
Advanced Power Management
The Egis 9815-4300B is an advanced, programmable remote lithium battery disconnect switch with ACR functionality, designed for efficient power management in electrical systems. Equipped with a manual rotary knob, it allows for easy operation and configuration. Its rugged, waterproof IP67 / IP6K9K rated design and a 4P DTM connector ensure corrosion protection and dependable performance even in harsh conditions.
Total Continuous Current
500 AMP
Max Cranking Current
1600 AMP
Mechanical Switch Lifetime
1,000,000 Cycles
Voltage Range
8-36V DC
Feature Summary
Applications / Problems This Solves.
Seamless NMEA 2000 Integration
Easy switch control and monitoring via NMEA 2000 compatible multi-function displays.
Lithium Battery System Ready
Designed for modern Lithium battery based electrical system applications that often require higher ON/OFF charge voltage settings over legacy battery chemistries.
Compact & Lightweight Design
Achieves a 35–75% reduction in mounting space and overall product weight through an advanced bi-stable solenoid architecture, optimizing installation efficiency.

Expandable System Architecture
Easily connects to additional XD relays-dual, triple, or single-using Link and Cross-Link busbars to support more complex multi-battery configurations.
Rugged, Sealed Construction
Built to endure harsh environments with IP67/IP6K9K sealing, stainless steel hardware, and high-temperature materials suitable for any mounting location.
Intuitive Programming & Compatibility
Offers simple dip-switch programmability for flexible configuration and plug-and-play compatibility with legacy ML Series bi-stable relays, reducing integration time.

Why Egis 9815-4300B?
Discover the advantages that make a difference.
LED Status Display
Equipped with a front-facing LED for immediate device status visibility and a remote LED output that mirrors on-device signals for easy system monitoring.
Manual Override Control
Features a 3-position knob allowing users to force the relay open or closed and lock it in either condition for enhanced control and maintenance flexibility.
Enhanced Protection & Longevity
Includes a protective cover to prevent accidental shorts and an integrated Gortex vent that regulates internal pressure, eliminating moisture ingress and extending service life.
Stainless Hardware
Utilizes stainless steel studs and self-locking flanged nuts for superior corrosion resistance, ensuring reliable operation even in marine or high-humidity environments.
Made in USA
Manufactured using premium-quality components for lasting performance and reliability.
