Guest 2110A 4-Position Battery Switch - Marine & Boat Power SelectorThe Guest 2110A 4-Position Battery Switch is a versatile and reliable power selector designed specifically for marine and boat applications. With its advanced features and robust construction, this battery switch ensures efficient and safe power management on your vessel.Product Features: Alternator field disconnect (AFD) allows selection of any positions, including "off" without damage to alternator or electrical system. AFD is required on some electrical systems. Heavy-duty copper sweep contacts for enhanced durability and conductivity. "Make before break" contacts allow selection of all positions except "off" while the engine is running. Compatible with 6, 12, 24, or 36-volt systems, providing flexibility for various power requirements. New design is easy to retrofit into existing hole patterns, minimizing installation efforts. Built-in skirt protects connections, ensuring reliable performance even in challenging marine environments. Exclusive flat 360-degree "sweep" contact design provides up to 60% more contact area than other switch designs, optimizing electrical transfer. Can be surface or rear panel mounted, offering convenient installation options. Constructed with marine-grade materials for excellent durability and corrosion resistance. Backed by a one-year warranty for peace of mind. Specifications: Continuous Amps: 230 Momentary Amps: 345 Dimensions: 5"D x 2-3/4"H 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 Wikipedia.Learn More: Battery Switch - Wikipedia Marine Electrical Systems - Wikipedia