Features: 1.Dual Circuit: Simultaneously switches two isolated battery banks, circuits of different voltages, positive and negative lines with one simple ON/OFF switch, such as 12 volt and 24 volt. 2.Ignition Protection: Make before break contact design allows switching between battery banks without power interruption. Isolating cover with snap?on sections protects rear contacts 3.Safe Installation: Ideal for marine or RV applications, can be securely mounted in gasoline powered boats. Case design allows surface, front panel, or rear panel mounting. 4.Premium Materials: Red copper silver plated studs with 7/8in (22.22mm) length for maximum conductivity, accepts 3/8in and M10 ring terminals, and the metal materials is marine grade rustproof. 5.Excellent Features: Tactile textures indicate knob position by feel only. Label with international ON OFF legends. Removable knob remains positively retained. ICON label set included for circuit identification. Specification: Item Type: Boat Battery Switch Material: ABS + PC + Red Copper Silver Plated Continuous Working Current: 300A Maximum Working Current: 450A (5min), 675A (30S) Maximum Working Voltage: 32VDC Terminal Size: M10 Protection Level: IP66 Application: Ideal for marine or RV applications PackageList: 1 x Boat Battery Switch