Blue Sea Systems

Marine power, done right

Blue Sea Systems

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Dependable electrical for the water

Build a cleaner, safer onboard power system with marine-grade switches, protection, and distribution components that are made to work together.

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Blue Sea 2011 PowerPost Mini High Amperage Cable Connector - 1/4" Stud [2011] (Open Box)
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861 products

861 products

  • Blue Sea 1833 M2 DC Voltmeter [1833] Blue Sea 1833 M2 DC Voltmeter [1833]
    Blue Sea 1833 M2 DC Voltmeter [1833]
    Blue Sea 1833 M2 DC Voltmeter [1833]
    Regular price
    $236.79
    Regular price
    $323.99
    Sale price
    $236.79
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  • Blue Sea 1832 M2 DC Ammeter [1832] Blue Sea 1832 M2 DC Ammeter [1832]
    Blue Sea 1832 M2 DC Ammeter [1832]
    Blue Sea 1832 M2 DC Ammeter [1832]
    Regular price
    $265.79
    Regular price
    $363.99
    Sale price
    $265.79
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  • Blue Sea 1830 M2 DC SoC State of Charge Monitor [1830] Blue Sea 1830 M2 DC SoC State of Charge Monitor [1830]
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  • Blue Sea PowerBar 1000 - 12 5/16" Terminal Studs w/Cover [1993]
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  • Blue Sea PowerBar 1000 - 8 5/16" Terminal Studs w/Cover [1992] Blue Sea PowerBar 1000 - 8 5/16" Terminal Studs w/Cover [1992]
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  • Blue Sea PowerBar 1000 - 12 3/8" Terminal Studs w/Cover [1991] Blue Sea PowerBar 1000 - 12 3/8" Terminal Studs w/Cover [1991]
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  • Blue Sea PowerBar 1000 - 8 3/8" Terminal Studs w/Cover [1990] Blue Sea PowerBar 1000 - 8 3/8" Terminal Studs w/Cover [1990]
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  • Blue Sea Floyd Bell Turbo Series Alarm [1070]
    Blue Sea Floyd Bell Turbo Series Alarm [1070]
    Blue Sea Floyd Bell Turbo Series Alarm [1070]
    Regular price
    $27.79
    Regular price
    $33.99
    Sale price
    $27.79
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  • Blue Sea 12V DC USB Extension [1044]
    Blue Sea 12V DC USB Extension [1044]
    Blue Sea 12V DC USB Extension [1044]
    Regular price
    $30.79
    Regular price
    $37.99
    Sale price
    $30.79
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  • Blue Sea Dual USB Charger - 24V Contura Mount [1039] Blue Sea Dual USB Charger - 24V Contura Mount [1039]
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  • Blue Sea 12V DC Dual USB Charger Socket - White [1016200]
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  • Blue Sea 12V Dash Socket - White [1011200]
    Blue Sea 12V Dash Socket - White [1011200]
    Blue Sea 12V Dash Socket - White [1011200]
    Regular price
    $11.26
    Regular price
    $16.99
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    $11.26
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About Blue Sea Systems

Blue Sea Systems builds marine-grade AC and DC electrical products designed to make boating safer and more reliable. Based in Bellingham, Washington, the brand is known for practical engineering that helps boaters and builders create clean, serviceable electrical systems that hold up in harsh conditions.

Their catalog covers the core building blocks of onboard power, including battery switches, automatic charging relays, fuse blocks, bus bars, circuit breakers, meters, and power distribution panels. Whether you are rigging a small skiff, upgrading a cruising sailboat, or wiring a specialty vehicle, Blue Sea components are made to work together as a complete system.

At Lotz Outdoors we stock Blue Sea Systems because dependable electrical is not optional on the water. If you are chasing a tidy install, easy troubleshooting, and confidence when the weather turns, this is the hardware that helps you get there.

Warranty

Satisfaction guarantee and product-specific warranty coverage

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Blue Sea Systems Customer Service

800-222-7617

For product-specific support, warranty claims, and technical questions, contact the brand directly.