6007200 Blackm-Series Mini Battery Switch SelectorMake before break contact design allows switching between battery banks without power interruptionSelector Switches battery bank 1 or battery bank 2 or both to a single load using one switchFeatures Ignition protected Safe for installation aboard gasoline powered boats Case design allows surface, front panel, or rear panel mounting Isolating cover with snap-on sections protects rear contacts 3/8 16 tin-plated copper studs for maximum conductivity and corrosion resistance, accepts 3/8 and M10 ring terminals 7/8 22.22mm stud length to accept multiple cable terminals Ideal for marine or RV applications All non-corrosive marine grade metals Molded in durable reinforced polycarbonate Tactile textures indicate knob position by feel only Label with international ON/OFF legends Removable key or knob remains positively retained ICON label set included for circuit identification WARNING This product can expose you to chemicals including di 2-ethylhexyl phthalate dehp which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.