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 6008 M-Series Battery Switch 3 Position - Red [6008] Blue Sea 6008 M-Series Battery Switch 3 Position - Red [6008]
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  • Blue Sea Water Resistant USB Accessory Panel - 15A Circuit Breaker, 4x Blank Apertures [4369] Blue Sea Water Resistant USB Accessory Panel - 15A Circuit Breaker, 4x Blank Apertures [4369]
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  • Blue Sea 4368 Water Resistant USB Accessory Panel - 12V Socket, 2x 2.1A Dual USB Chargers, Mini Voltmeter [4368] Blue Sea 4368 Water Resistant USB Accessory Panel - 12V Socket, 2x 2.1A Dual USB Chargers, Mini Voltmeter [4368]
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  • Blue Sea 4325 Circuit Breaker Switch Panel 6 Position - Camo [4325] Blue Sea 4325 Circuit Breaker Switch Panel 6 Position - Camo [4325]
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  • Blue Sea 4324 Circuit Breaker Switch Panel 4 Postion - Camo w/12V Socket  Dual USB [4324]
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  • Blue Sea 4323 Circuit Breaker Switch Panel 4 Position - Camo [4323] Blue Sea 4323 Circuit Breaker Switch Panel 4 Position - Camo [4323]
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  • Blue Sea 4322 Circuit Breaker Switch Panel 6 Position - Gray [4322] Blue Sea 4322 Circuit Breaker Switch Panel 6 Position - Gray [4322]
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  • Blue Sea 4321 Circuit Breaker Switch Panel 4 Position - Gray w/12V Socket  Dual USB [4321] Blue Sea 4321 Circuit Breaker Switch Panel 4 Position - Gray w/12V Socket  Dual USB [4321]
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  • Blue Sea 4320 Circuit Breaker Switch Panel 4 Position - Gray [4320] Blue Sea 4320 Circuit Breaker Switch Panel 4 Position - Gray [4320]
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  • Blue Sea 9160 Paralleling ML Series Link Bus [9160] Blue Sea 9160 Paralleling ML Series Link Bus [9160]
    Blue Sea 9160 Paralleling ML Series Link Bus [9160]
    Blue Sea 9160 Paralleling ML Series Link Bus [9160]
    Regular price
    $18.79
    Regular price
    $22.99
    Sale price
    $18.79
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  • Blue Sea 1850 M2 Vessel Systems Monitor [1850] Blue Sea 1850 M2 Vessel Systems Monitor [1850]
    Blue Sea 1850 M2 Vessel Systems Monitor [1850]
    Blue Sea 1850 M2 Vessel Systems Monitor [1850]
    Regular price
    $380.79
    Regular price
    $520.99
    Sale price
    $380.79
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  • Blue Sea 1046 48V Dual USB Charger Socket Mount [1046] Blue Sea 1046 48V Dual USB Charger Socket Mount [1046]
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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.