1 Piece Battery Selector, 300A Marine Battery Disconnect Switch, Heavy Duty 4 Position Battery Selector for RV Boat

300A battery selector switches isolated battery banks on all loads or combines battery banks on all charges. The inner part of the battery insulator switch is made of silver-plated copper studs, which have good electrical conductivity. The outer part is made of ABS plastic, strong insulation, sturdy and durable. The pre-break contact design allows you to switch between battery banks without interrupting current. Specifications: DC current: 300A; Maximum voltage: 12V-48V DC; 4-position function; Battery 1 and 2; Battery 1; Battery 2; Turn off. The housing design allows for surface mounting, on the front panel or on the back panel. Screws are now included.