Feature 1Application: Ideal for marine or RV applications, molded in durable ABS, tactile textures indicate knob with international ON OFF marks, and removable key or knob remains positively retained. 2Function: This is a dual circuit plus switch, simultaneously switches two isolated battery banks or combines battery banks to all loads. 3Ignition Protected: Safe for installation aboard gasoline powered boats, case design allows surface, front panel, or rear panel mounting. 4Good Conductivity: Isolating cover with snap on sections protects rear contacts 3/8in16 tin plated copper studs for maximum conductivity, accepts 3/8in/0.95cm and M10 ring terminals 7/8in / 22.22mm. 5Safe to Use: Make before break contact design allows switching between battery banks without power interruption.Item Type:BatterySwitchMaterial: ABS+CopperContinuous Working Current: 300AMaximum Working Current: 450A (5min), 675A (30s)Maximum Working Voltage: 32V DCTerminal Size: M10Inner Stud: Copper Plated With SilverFunction:Makebeforebreakcontactdesignallowsswitchingbetweenbatterybankswithoutpowerinterruption.Application: Ideal for marine or RV applications .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x BatterySwitch