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 8097 AC 6 Position Toggle Circuit Breaker Panel - White Switches [8097]
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  • Blue Sea 8076 AC Main +11 Positions Toggle Circuit Breaker Panel - White Switches [8076]
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  • Blue Sea 8084 AC Main +6 Positions/DC Main +15 Positions Toggle Circuit Breaker Panel - White Switches [8084]
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  • Blue Sea 8086 AC 3 Sources +12 Positions/DC Main +19 Position Toggle Circuit Breaker Panel - White Switches [8086]
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  • Blue Sea 5015 ST Glass Fuse Block w/Negative Bus [5015]
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  • Blue Sea 4126 AC A-Series Circuit Breaker Lockout Slide [4126]
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  • Blue Sea 4100 Toggle Guard [4100]
    Blue Sea 4100 Toggle Guard [4100]
    Blue Sea 4100 Toggle Guard [4100]
    Regular price
    $20.80
    Regular price
    $20.80
    Sale price
    $20.80
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  • Blue Sea 2102 PowerPost Plus Cable Connector - 5/16" Stud [2102]
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  • Blue Sea 2101 PowerPost Plus Cable Connector - 1/4" Stud [2101]
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  • Blue Sea 2406 Terminal Block 20AMP - 6 Circuit [2406]
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  • Blue Sea 2404 Terminal Black 20AMP - 4 Circuit [2404]
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  • Blue Sea 5133 ANL Fuse - 300AMP [5133] Blue Sea 5133 ANL Fuse - 300AMP [5133]
    Blue Sea 5133 ANL Fuse - 300AMP [5133]
    Blue Sea 5133 ANL Fuse - 300AMP [5133]
    Regular price
    $42.79
    Regular price
    $49.99
    Sale price
    $42.79
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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.