Blue Sea Systems E-Series Battery Switches. Switches battery bank 1 or battery bank 2 or battery banks 1 and 2 to all loads using one switch. Up to 350 Amperes Continuous Rating Ignition protected - safe for installation aboard gasoline powered boats. Tactile indicator conveys knob position by feel only. Fits all Perko and Guest low amperage battery switch hole patterns. Case design allows surface or rear panel mounting. Accepts up to 4/0 AWG battery cables. Meets American Boat and Yacht Council (ABYC) requirements for battery switches. Make-before-break contact design on 9001 and 9002 models allows switching between battery banks without power interruption.