Blue Sea 8508 AC Main + 6 Positions / DC Main + 18 Positions

The Blue Sea 8508 AC Main + 6 Positions / DC Main + 18 Positions is a dual-circuit marine electrical panel engineered for serious boaters who demand reliable power distribution and circuit protection. Built by Blue Sea Systems—the trusted name in marine electrical safety—this integrated AC and DC main switch system eliminates the need for separate panels, saving valuable helm space while maintaining full redundancy and control. Whether you're running a sportfisher, cruiser, or extended-range trawler, this panel handles the complexity of modern marine electrical systems with the straightforward reliability that keeps you safe on the water.

This switching and distribution center combines an AC main breaker with six positions for AC circuits alongside a DC main with eighteen individual DC positions, allowing you to isolate and protect every major load independently. The heavy-duty construction accommodates real-world marine loads—from thruster and hydraulic systems to battery chargers, inverters, and house loads—without voltage sag or nuisance breaker trips. Blue Sea's industrial-grade design uses full-size marine-rated connectors and robust switching contacts rated for continuous service in salt air and high-vibration environments. The configuration gives you granular control: shut down AC independently from DC (useful during generator maintenance or shore-power transitions), isolate problem circuits instantly, and manage power sequencing to protect sensitive electronics and engine systems during startup.

This panel is purpose-built for larger displacement vessels (40+ feet) and any boat running dual-bank battery systems with significant AC generation or inverter capacity. Installers appreciate the modular circuit positions—you can configure exactly what you need without paying for unused spaces—and the clear, durable labeling that survives years of salt spray and UV exposure. Mounting dimensions of 14 x 6 x 22 inches fit standard galley cabinets or engine-room panels, while the 10.25-pound weight requires proper mechanical support and proper gauge wiring from batteries and AC sources. Professional installation is strongly recommended to ensure correct breaker sizing, proper grounding, and compliance with American Boat and Yacht Council (ABYC) standards.