Heavy-Duty Marine Electrical Master Battery Switch, 300A 12V
Heavy-Duty Marine electrical master battery switch with 300A current capacity. Ideal for power-boats and sailing boats. Isolate your marine battery system, cutting off all possibility of battery-induced galvanic corrosion to help prolong the life of propellers, prop-shafts and other metallic fittings which can otherwise suffer from the effects of marine electrolysis if micro-currents are allowed to flow. Including a mater-switch in your marine battery system also give peace of mind, knowing that if there is an electrical malfunction you can isolate everything while you investigate the source of the problem.