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 7458 UL-489 Circuit Breaker - 30A Flat Rocker [7458] Blue Sea 7458 UL-489 Circuit Breaker - 30A Flat Rocker [7458]
    Quick view
  • Blue Sea 7457 UL-489 Circuit Breaker - 20A Flat Rocker [7457] Blue Sea 7457 UL-489 Circuit Breaker - 20A Flat Rocker [7457]
    Quick view
  • Blue Sea 7456 UL-489 Circuit Breaker - 15A Flat Rocker [7456] Blue Sea 7456 UL-489 Circuit Breaker - 15A Flat Rocker [7456]
    Quick view
  • Blue Sea 7454 UL-489 Circuit Breaker - 5A Flat Rocker [7454] Blue Sea 7454 UL-489 Circuit Breaker - 5A Flat Rocker [7454]
    Quick view
  • Blue Sea 7446 UL-489 Circuit Breaker - 100A Flat Rocker [7446] Blue Sea 7446 UL-489 Circuit Breaker - 100A Flat Rocker [7446]
    Quick view
  • Blue Sea 7445 UL-489 Circuit Breaker - 50A Flat Rocker [7445] Blue Sea 7445 UL-489 Circuit Breaker - 50A Flat Rocker [7445]
    Quick view
  • Blue Sea 7444 UL-489 Circuit Breaker - 30A Flat Rocker [7444] Blue Sea 7444 UL-489 Circuit Breaker - 30A Flat Rocker [7444]
    Quick view
  • Blue Sea 7443 UL-489 Circuit Breaker - 20A Flat Rocker [7443] Blue Sea 7443 UL-489 Circuit Breaker - 20A Flat Rocker [7443]
    Quick view
  • Blue Sea 7442 UL-489 Circuit Breaker - 15A Flat Rocker [7442] Blue Sea 7442 UL-489 Circuit Breaker - 15A Flat Rocker [7442]
    Quick view
  • Blue Sea 7441 UL-489 Circuit Breaker - 10A Flat Rocker [7441] Blue Sea 7441 UL-489 Circuit Breaker - 10A Flat Rocker [7441]
    Quick view
  • Blue Sea 7440 UL-489 Circuit Breaker - 5A Flat Rocker [7440] Blue Sea 7440 UL-489 Circuit Breaker - 5A Flat Rocker [7440]
    Quick view
  • Blue Sea 6008200 m-Series Selector 3 Position Battery Switch - Black [6008200] Blue Sea 6008200 m-Series Selector 3 Position Battery Switch - Black [6008200]
    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.