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 7765 L-Series Solenoid Switch - 150A - 12/24V DC [7765]
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  • Blue Sea 8120 - 5 Position 12V Panel w/Dual USB  12V Socket [8120]
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  • Blue Sea 5289 AGC Fuse Kit - 41-Piece [5289]
    Blue Sea 5289 AGC Fuse Kit - 41-Piece [5289]
    Blue Sea 5289 AGC Fuse Kit - 41-Piece [5289]
    Regular price
    $34.79
    Regular price
    $39.99
    Sale price
    $34.79
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  • Blue Sea 3124 Small Cable Gland
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  • Blue Sea 3120 - SMS Panel Enclosure w/ELCI Main (50A) and 2 Blanks - 240V [3120]
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  • Blue Sea C-Series ELCI Main Circuit Breaker - 120/240V AC 50A [3104]
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  • Blue Sea A-Series ELCI Main Circuit Breaker - Double Pole 120V AC 30A - Flat Rocker [3102100]
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  • Blue Sea 4141 Switch Meter Toggle SPTT On-On-On [4141]
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  • Blue Sea 7622100 ML ACR Charging Relay 12V 500A w/Manual Control  Deutsch Connector [7622100] Blue Sea 7622100 ML ACR Charging Relay 12V 500A w/Manual Control  Deutsch Connector [7622100]
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  • Blue Sea 7713100 ML-RBS Remote Battery Switch w/Manual Control Auto Release  Deutsch Connector - 12V [7713100] Blue Sea 7713100 ML-RBS Remote Battery Switch w/Manual Control Auto Release  Deutsch Connector - 12V [7713100]
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  • Blue Sea 7700100 ML Solenoid 12V 500A w/Manual Control  Deutsch Connector [7700100] Blue Sea 7700100 ML Solenoid 12V 500A w/Manual Control  Deutsch Connector [7700100]
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  • Blue Sea 7701100 ML Solenoid 12V 500A w/Deutsch Connector [7701100] Blue Sea 7701100 ML Solenoid 12V 500A w/Deutsch Connector [7701100]
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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.