Blue Sea Systems

Marine power, done right

Blue Sea Systems

Authorized Dealer
Follow this brand:

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.

Shop Blue Sea Systems

Just added from this brandNEW

Blue Sea 2011 PowerPost Mini High Amperage Cable Connector - 1/4" Stud [2011] (Open Box)
Quick view
Sort by
Filter and sort
Filter and sort

861 products

861 products

  • Blue Sea 8110 Mini Clamp Multimeter [8110]
    Blue Sea 8110 Mini Clamp Multimeter [8110]
    Blue Sea 8110 Mini Clamp Multimeter [8110]
    Regular price
    $211.79
    Regular price
    $289.99
    Sale price
    $211.79
    Add to cart
    Quick view
  • Blue Sea 2713 Minibus Cover [2713]
    Blue Sea 2713 Minibus Cover [2713]
    Blue Sea 2713 Minibus Cover [2713]
    Regular price
    $4.79
    Regular price
    $5.99
    Sale price
    $4.79
    Add to cart
    Quick view
  • Blue Sea 7610 120 Amp SI-Series Automatic Charging Relay [7610] Blue Sea 7610 120 Amp SI-Series Automatic Charging Relay [7610]
    Quick view
  • Blue Sea 7650 Add-A-Battery [7650]
    Blue Sea 7650 Add-A-Battery [7650]
    Blue Sea 7650 Add-A-Battery [7650]
    Regular price
    $194.79
    Regular price
    $274.99
    Sale price
    $194.79
    Add to cart
    Quick view
  • Blue Sea 2716 Cover f/BusBar 2302 [2716]
    Blue Sea 2716 Cover f/BusBar 2302 [2716]
    Blue Sea 2716 Cover f/BusBar 2302 [2716]
    Regular price
    $7.79
    Regular price
    $8.99
    Sale price
    $7.79
    Add to cart
    Quick view
  • Blue Sea 2315 MiniBus 100 Ampere Common BusBar 4 x 10-32 Stud Terminal with Cover [2315]
    Quick view
  • Blue Sea 2314 MiniBus 100 Ampere Common BusBar 5 x 8-32 Screw Terminal with Cover [2314]
    Quick view
  • Blue Sea 2312, 150 Ampere Common Busbar 20 x 8-32 Screw Terminal with Cover [2312]
    Quick view
  • Blue Sea 6006 m-Series (Mini) Battery Switch Single Circuit ON/OFF Red [6006] Blue Sea 6006 m-Series (Mini) Battery Switch Single Circuit ON/OFF Red [6006]
    Quick view
  • Blue Sea 6005 m-Series (Mini) Battery Switch Single Circuit ON/OFF [6005] Blue Sea 6005 m-Series (Mini) Battery Switch Single Circuit ON/OFF [6005]
    Quick view
  • Blue Sea 7250I C-Series Ignition Protected Toggle Single Pole - 100A [7250I]
    Quick view
  • Blue Sea 5511E e-Series Dual Circuit Plus Battery Switch [5511E] Blue Sea 5511E e-Series Dual Circuit Plus Battery Switch [5511E]
    Quick view

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

View warranty details

Blue Sea Systems Customer Service

800-222-7617

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