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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860 products

860 products

  • Blue Sea 2356100 - Water Resistant 100A Busbar w/Cover [2356100]
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  • Blue Sea 4365 Water Resistant USB Accessory Panel - 15A Circuit Breaker, 12V Socket, 2x 2.1A Dual USB Chargers [4365] Blue Sea 4365 Water Resistant USB Accessory Panel - 15A Circuit Breaker, 12V Socket, 2x 2.1A Dual USB Chargers [4365]
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  • Blue Sea 8275 Water Resistant Contura III Switch - Gray [8275]
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  • Blue Sea 2010 PowerPost High Amperage Cable Connector
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  • Blue Sea 8074 AC Main +8 Positions Toggle Circuit Breaker Panel - White Switches [8074]
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  • Blue Sea 2011 PowerPost Mini High Amperage Cable Connector - 1/4" Stud [2011]
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  • Blue Sea 8264 Traditional Metal DC Panel - 24 Positions
    Blue Sea 8264 Traditional Metal DC Panel - 24 Positions
    Blue Sea 8264 Traditional Metal DC Panel - 24 Positions
    Regular price
    $893.76
    Regular price
    $1,244.99
    Sale price
    $893.76
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  • Blue Sea 8378 DC 18 Position Panel - White
    Blue Sea 8378 DC 18 Position Panel - White
    Blue Sea 8378 DC 18 Position Panel - White
    Regular price
    $1,038.76
    Regular price
    $1,445.99
    Sale price
    $1,038.76
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  • Blue Sea 8384 4 Position Label Backlight Kit
    Blue Sea 8384 4 Position Label Backlight Kit
    Blue Sea 8384 4 Position Label Backlight Kit
    Regular price
    $23.76
    Regular price
    $28.99
    Sale price
    $23.76
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  • Blue Sea 7717100 ML-RBS Remote Battery Switch with Manual Control Auto Release & Deutsch Connector - 24V
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  • Blue Sea 1482 120V AC Rotary 30A OFF + 3 Sources
    Blue Sea 1482 120V AC Rotary 30A OFF + 3 Sources
    Blue Sea 1482 120V AC Rotary 30A OFF + 3 Sources
    Regular price
    $390.76
    Regular price
    $543.99
    Sale price
    $390.76
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  • Blue Sea 3133 - SMS Panel Enclosure w/Main & 3 Branch (12/24V) - 12/24V DC
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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.