Blue Sea Systems 11003 HD-Series Heavy Duty 3-Pos Selector Battery Switch, 500A

Ensure robust and safe power management aboard your vessel with the Blue Sea Systems 11003 HD-Series Heavy Duty 3-Position Selector Battery Switch. Engineered for demanding marine environments, this switch features an Alternator Field Disconnect (AFD) to protect your alternator from damage during operation. Its heavy-duty design and high current ratings make it ideal for isolating battery banks and managing power to all loads, ensuring reliability and peace of mind on the water. Upgrade your marine electrical system with confidence today.

• Alternator Protection: Integrated Alternator Field Disconnect (AFD) safeguards your alternator from potentially damaging voltage spikes when switching battery banks.
• Marine Safety & Compliance: Ignition protected for safe installation on gasoline-powered boats and meets American Boat and Yacht Council (ABYC) E-11 requirements, UL 1107, UL 1500, ISO 8846, and SAE J1171 standards.
• Versatile Installation: The case design allows for flexible surface or rear panel mounting options to suit various vessel layouts.
• High Current Capacity: Rated for a 500A continuous current at 32V DC, with intermittent ratings of 700A (5 min) and a cranking rating of 1600A (30 sec) for superior performance in heavy-duty applications.
• Robust Connectivity: Accepts two 4/0 AWG (95mm²) battery cables per terminal, ensuring maximum current flow and secure connections for large electrical systems.
• Optimal Conductivity: Features M12 tin-plated copper studs that resist corrosion and provide superior conductivity, accommodating 1/2-inch and M12 ring terminals.
• Uninterrupted Power: "Make-before-break" contact design allows switching between battery banks without power interruption, protecting sensitive electronics.
• Intuitive Operation: Tactile textures on the knob provide clear indication of switch position by feel, even in low light conditions.

WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.