Dependable Battery Safety Engineered for 300A loads, this battery disconnect key provides failsafe protection by cutting off the main battery power. It is well suited for boats and caravans, helping prevent parasitic drain during inactivity and enabling an urgent system shutdown when needed. current capability Rated for 1248V DC with 300A continuous current and 1000A intermittent peak. Durable, weathertolerant construction An allaluminum corrosionproof casing with a chrome exterior delivers longlasting service. The weathertolerant design makes it essential for outdoor power setups, urgent systems, and vehicular applications, providing secure current interruption with enduring durability. Comprehensive installation kit Includes a disconnect key, mounting faceplate, two protective rubber insulators, two 3/8inch copper terminal lugs, and two heat shrink tubes. Everything required for safe, professional battery disconnect key installation. Use scenarios On boats: disconnect the main battery when docked or away from the vessel to prevent parasitic drain and preserve battery health, while retaining rapid shutdown capability. In caravans/RVs: isolate the main battery during storage or before maintenance, reducing drain and ensuring quick power control. In offgrid or outdoor vehicles: provide a reliable, current isolation point for emergency shutdowns and easy integration into larger power systems.