Battery Protection: The 300A rating provides instant power cutoff to protect your marine, automotive, or caravan electrical systems. Helps prevent battery depletion during storage while delivering reliable performance for current applications. Adaptable Fit: Designed for 1248V DC circuits with 300A continuous and 1000A intermittent ratings. Offers two deployment options: operate independently or interlock with companion units. Durable Construction: Allaluminum, corrosionproof casing with a chrome exterior for longlasting service. Weathertolerant design suitable for outdoor power setups, urgent systems, and vehicular applications. Provides secure current interruption with dependable durability. Complete Component Package: Includes battery disconnect key, faceplate, two protective rubber terminal insulators, two conductivity 3/8inch copper lugs, and two industrialstrength heatshrink tubes for easy installation. Specifications and Uses: 1248V DC systems; 300A continuous rating; 1000A intermittent rating. Ideal for marine electrical systems, automotive, caravans, outdoor power setups, emergency power systems, and other current installations.