5511e - Navico Group Blue Sea E-Series Battery Switch On-Off Dual Circuit Plus

Blue Sea Systems e-Series Dual Circuit Plus™ Battery Switch

• 350 Amps continuous rating for inboard gasoline or diesel engines.
• Tin-plated copper studs for maximum conductivity and corrosion resistance
• Accepts up to 4/0 AWG battery cables
• Studs accepts 3/8" (M10) ring terminals
• 7/8" (22mm) stud length accepts multiple cable terminals
• Blue Sea Systems one-piece terminal stud design never loosens over time
• Fits most Perko and Guest low amperage battery switch hole patterns
• Case design allows surface or rear panel mounting
• Tactile indicator conveys knob position by feel
• Waterproof — rated IP66 from water projected in powerful jets
• Ignition protected—safe for installation aboard gasoline powered boats
• Make-before-break contact design allows switching without power interruption

Simultaneously switches two isolated battery banks or combines battery banks to all loads

The Navico Group Blue Sea E-Series Battery Switch, part number 5511e, is a pushbutton switch designed for managing power distribution in marine or similar 32V DC applications. This dual circuit plus switch allows for the simultaneous switching of two isolated battery banks or the combining of battery banks to all loads, without power interruption due to its make-before-break contact design. It is suitable for systems requiring a continuous rating of 350 Amps, accommodating inboard gasoline or diesel engines. The switch features tin-plated copper studs for conductivity and corrosion resistance, accepting up to 4/0 AWG battery cables with 3/8" (M10) ring terminals. Its IP66 waterproof rating and ignition protection make it safe for installation on gasoline-powered boats. Mounting options include surface or rear panel installation, and it is designed to fit most Perko and Guest low amperage battery switch hole patterns.