Selector 4 Position. Switches isolated battery banks to all loads or combines battery banks to all loads. Includes AFD (Alternator Field Disconnect) Ignition protected—safe for installation aboard gasoline powered boats IP66 waterproof, ISO 8846 and meets ABYC requirements Terminal Stud Size: 3/8" - 16 Continuous rating: 350A, Maximum voltage: 32V DC Dual Circuit. Simultaneously switches two isolated battery banks Ignition protected—safe for installation aboard gasoline powered boats IP66 waterproof, ISO 8846 and meets ABYC requirements Terminal Stud Size: 3/8" - 16 Continuous rating: 350A per circuit, Maximum voltage: 32V DC Dual Circuit Plus. Simultaneously switches two isolated battery banks or combines battery banks to all loads Ignition protected—safe for installation aboard gasoline powered boats IP66 waterproof, ISO 8846 and meets ABYC requirements Terminal Stud Size: 3/8" - 16 Continuous rating: 350A per circuit, Maximum voltage: 32V DC Single Circuit ON-OFF. Switches a single battery to a single load group Ignition protected—safe for installation aboard gasoline powered boats IP66 waterproof, ISO 8846 and meets ABYC requirements Terminal Stud Size: 3/8" - 16 Continuous rating: 350A, Maximum voltage: 48V DC Single Circuit ON-OFF. Switches a single battery to a single load group. Includes AFD (Alternator Field Disconnect) Ignition protected—safe for installation aboard gasoline powered boats IP66 waterproof, ISO 8846 and meets ABYC requirements Terminal Stud Size: 3/8" - 16 Continuous rating: 350A, Maximum voltage: 48V DC Selector 3 Position. Switches a single battery to a single load group. Includes AFD (Alternator Field Disconnect) Ignition protected—safe for installation aboard gasoline powered boats IP66 waterproof, ISO 8846 and meets ABYC requirements Terminal Stud Size: 3/8" - 16 Continuous rating: 350A, Maximum voltage: 32V DC Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store