Blue Sea Systems is committed to the improvement of marine electrical products and systems, such as panel systems, circuit breakers, connectors, and insulators. Blue Sea wants to satisfy their distributors, dealers and ultimately the retail customer by designing and manufacturing electrical products engineered to withstand the harsh marine environment.
Phone: 360.738.8230
Web: www.bluesea.com
We offer flat rate shipping and can help you locate hard to find items or we can recommend alternatives.
Call us today at 1-414-254-1559 for personalized service and help locating / replacing hard to find marine electrical equipment.
![Blue Sea 5029 ST Blade Fuse Block w/Cover - 12 Circuit w/o Negative Bus [5029]](http://cemarine.com/cdn/shop/products/20430XL_512x512.jpg?v=1547865511)
Save 29%
5029ST Blade Fuse Block w/ Cover - 12 Circuit w/out Negative Bus Clear insulating cover with label recesses accept Small Format Labels Cover Sat...
View full details![Blue Sea 5028 ST Blade Fuse Block w/ Cover - 6 Circuit without Negative Bus [5028]](http://cemarine.com/cdn/shop/products/20429XL_512x512.jpg?v=1547865505)
Save 30%
5028ST Blade Fuse Block w/ Cover6 Circuit w/out Negative Bus Clear insulating cover with label recesses accept Small Format Labels Cover Satisfie...
View full details![Blue Sea 5026 ST Blade Fuse Block w/Cover - 12 Circuit w/Negative Bus [5026]](http://cemarine.com/cdn/shop/products/16508XL_512x512.jpg?v=1547863635)
Save 30%
5026 ST Blade Fuse Block with Cover - 12 Circuit with Negative Bus Features: Clear insulating cover with label recesses accept Small Format Labels...
View full details![Blue Sea 5025 ST Blade Fuse Block w/Cover - 6 Circuit w/Negative Bus [5025]](http://cemarine.com/cdn/shop/products/16507XL_512x512.jpg?v=1547863628)
Save 31%
5025 ST Blade Fuse Block with Cover - 6 Circuit with Negative Bus Features: Clear insulating cover with label recesses accept Small Format Labels ...
View full details![Blue Sea 5024 ST-Blade Battery Terminal Mount Fuse Block Kit [5024]](http://cemarine.com/cdn/shop/products/54776XL_512x512.jpg?v=1547927967)
Save 30%
ST-Blade Battery Terminal Mount Fuse Block KitFeatures: Easy to install 4 ATO/ATC fused circuits Mounts on the battery terminal stud Screw te...
View full details![Blue Sea 5023 ST-Blade Battery Terminal Mount Fuse Block [5023]](http://cemarine.com/cdn/shop/products/54775XL_512x512.jpg?v=1547927961)
Save 30%
ST-Blade Battery Terminal Mount Fuse BlockFeatures: Easy to install 4 ATO/ATC fused circuits Mounts on the battery terminal stud Screw termin...
View full details![Blue Sea 5022 Panel Mount AGC/MDL Fuse Holder Replacement Cap [5022]](http://cemarine.com/cdn/shop/products/74015XL_512x512.jpg?v=1576634539)
Call for Availabity!
5022 Panel Mount AGC/MDL Fuse Holder Replacement CapReplaces cap for 5021 Specifications: Fuse Type: AGC/MDL Type: Fuse Holders Box Dimensions: 1...
View full details![Blue Sea 5021 Water Resistant Fuse Holder [5021]](http://cemarine.com/cdn/shop/products/20428XL_512x512.jpg?v=1547865498)
Save 27%
Water Resistant Fuse Holder Panel Mount Rated IP66 on front - protected against powerful water jets 20A Max. fuse amperage 0.50" (12.70mm) moun...
View full details![Blue Sea 5018 ST Glass Fuse Block w/out Negative Bus - 6 Circuit [5018]](http://cemarine.com/cdn/shop/products/13967XL_512x512.jpg?v=1547862035)
Save 29%
5018 ST Glass Fuse Block without Negative Bus - 6 CircuitFeatures: Clear insulating cover with label recesses for accept Large Format Labels Cover...
View full details![Blue Sea 5015 ST Glass Fuse Block w/Negative Bus [5015]](http://cemarine.com/cdn/shop/products/14569XL_512x512.jpg?v=1547862493)
Save 30%
5015 ST Glass Fuse Block with Negative Bus Features: Clear insulating cover with label recesses for accept Large Format Labels Cover insulates all...
View full details![Blue Sea 5007100 Class T Fuse Block w/Insulating Cover - 110 to 200A [5007100]](http://cemarine.com/cdn/shop/products/64351XL_512x512.jpg?v=1576632091)
Save 31%
Class T Fuse Block with Insulating Cover - 110 to 200AAllows the use of Class T fuses for fast acting circuit protection of inverters and other el...
View full details![Blue Sea 5006100 MAXI Fuse Block - 30-80A [5006100]](http://cemarine.com/cdn/shop/products/64446XL_512x512.jpg?v=1576632111)
Save 30%
MAXI Fuse Block - 30-80AIgnition Protected Replaces Part Number 5006 MAXI Range 30-80A Accepts wire 18-4 AWG Versatile wiring orientations Lab...
View full details![Blue Sea 5005 ANL 35-300AMP Fuse Block w/Cover [5005]](http://cemarine.com/cdn/shop/products/13969XL_512x512.jpg?v=1547862042)
Save 30%
5005 ANL 35-300AMP Fuse Block with CoverFeatures: Insulating cover satisfies ABYC/USCG requirements and cover breakouts allow access in any direct...
View full details![Blue Sea 5001 Fuse Block MEGA 100-300A w/Cover [5001]](http://cemarine.com/cdn/shop/products/19000XL_512x512.jpg?v=1547864535)
Save 29%
5001 Fuse Block MEGA 100-300A with Cover Features: The most economical system for 100-300 Ampere fusing Insulating cover satisfies ABYC/USCG requi...
View full details![Blue Sea 4378 WeatherDeck Water Resistant Circuit Breaker Panel - 8 Position - Grey [4378]](http://cemarine.com/cdn/shop/products/34965XL_512x512.jpg?v=1547881073)
Call for Availabity!
WeatherDeck Water Resistant Circuit Breaker PanelPN: 4378Color: GrayFeatures: Rated IP67-temporary immersion for 30 minutes Designed for flybri...
View full details![Blue Sea 4376 WeatherDeck Water Resistant Circuit Breaker Panel - 6 Position - Grey [4376]](http://cemarine.com/cdn/shop/products/20423XL_512x512.jpg?v=1547865490)
Save 31%
WeatherDeck™ Water Resistant Circuit Breaker PanelPN: 4376Color: GrayFeatures: Rated IP67-temporary immersion for 30 minutes Designed for flybridg...
View full details![Blue Sea 4374 WeatherDeck Water Resistant Circuit Breaker Panel - 4 Position - Grey [4374]](http://cemarine.com/cdn/shop/products/20422XL_512x512.jpg?v=1547865483)
Save 31%
WeatherDeck™ Water Resistant Circuit Breaker PanelPN: 4374Color: GrayFeatures: Rated IP67-temporary immersion for 30 minutes Designed for flybridg...
View full details![Blue Sea 4368 Water Resistant USB Accessory Panel - 12V Socket, 2x 2.1A Dual USB Chargers, Mini Voltmeter [4368]](http://cemarine.com/cdn/shop/products/75114XL_512x512.jpg?v=1576634783)
Save 31%
4368 Water Resistant USB Accessory Panel - 12V Socket, 2x 2.1A Dual USB Chargers, Mini VoltmeterEasy to install accessory panels include a 15A cir...
View full details![Blue Sea 4367 Water Resistant USB Accessory Panel - 15A Circuit Breaker, 3x Blank Apertures [4367]](http://cemarine.com/cdn/shop/products/75137XL_512x512.jpg?v=1576634795)
Save 30%
4367 Water Resistant USB Accessory Panel - 15A Circuit Breaker, 3x Blank AperturesEasy to install accessory panels include a 15A circuit breaker s...
View full details![Blue Sea 4366 Water Resistant USB Accessory Panel - Circuit Breaker, 12V Socket, Dual USB Charger, Mini Voltmeter [4366]](http://cemarine.com/cdn/shop/products/75136XL_512x512.jpg?v=1576634794)
Save 31%
4366 Water Resistant USB Accessory Panel - Circuit Breaker, 12V Socket, Dual USB Charger, Mini VoltmeterEasy to install accessory panels include a...
View full details![Blue Sea 4365 Water Resistant USB Accessory Panel - 15A Circuit Breaker, 12V Socket, 2x 2.1A Dual USB Chargers [4365]](http://cemarine.com/cdn/shop/products/75135XL_512x512.jpg?v=1576634793)
Save 31%
4365 Water Resistant USB Accessory Panel - 15A Circuit Breaker, 12V Socket, 2x 2.1A Dual USB ChargersEasy to install accessory panels include a 15...
View full details![Blue Sea 4364 Water Resistant USB Accessory Panel - 15A Circuit Breaker, 2x Blank Apertures [4364]](http://cemarine.com/cdn/shop/products/75134XL_512x512.jpg?v=1576634793)
Save 30%
4364 Water Resistant USB Accessory Panel - 15A Circuit Breaker, 2x Blank AperturesEasy to install accessory panels include a 15A circuit breaker s...
View full details![Blue Sea 4363 Water Resistant USB Accessory Panels - 15A Circuit Breaker, 12V Socket, 2.1A Dual USB Charger [4363]](http://cemarine.com/cdn/shop/products/75133XL_512x512.jpg?v=1576634792)
Save 31%
4363 Water Resistant USB Accessory Panels - 15A Circuit Breaker, 12V Socket, 2.1A Dual USB ChargerEasy to install accessory panels include a 15A c...
View full details![Blue Sea 4325 Circuit Breaker Switch Panel 6 Position - Camo [4325]](http://cemarine.com/cdn/shop/products/75113XL_512x512.jpg?v=1576634783)
Save 23%
4325 Circuit Breaker Switch Panel 6 Position - CamoDesigned for exposed mounting applications.Features: Illuminated 15A circuit breakers provide s...
View full details![Blue Sea 4324 Circuit Breaker Switch Panel 4 Postion - Camo w/12V Socket Dual USB [4324]](http://cemarine.com/cdn/shop/products/75112XL_512x512.jpg?v=1576634782)
Save 24%
4324 Circuit Breaker Switch Panel 4 Postion - Camo with 12V Socket & Dual USBDesigned for exposed mounting applications.Features: Illuminated ...
View full details![Blue Sea 4323 Circuit Breaker Switch Panel 4 Position - Camo [4323]](http://cemarine.com/cdn/shop/products/75111XL_512x512.jpg?v=1576634781)
Save 22%
4323 Circuit Breaker Switch Panel 4 Position - CamoDesigned for exposed mounting applications.Features: Illuminated 15A circuit breakers provide s...
View full details![Blue Sea 4322 Circuit Breaker Switch Panel 6 Position - Gray [4322]](http://cemarine.com/cdn/shop/products/75110XL_512x512.jpg?v=1576634781)
Save 24%
4322 Circuit Breaker Switch Panel 6 Position - GrayDesigned for exposed mounting applications.Features: Illuminated 15A circuit breakers provide s...
View full details![Blue Sea 4321 Circuit Breaker Switch Panel 4 Position - Gray w/12V Socket Dual USB [4321]](http://cemarine.com/cdn/shop/products/75109XL_512x512.jpg?v=1576634781)
Save 23%
4321 Circuit Breaker Switch Panel 4 Position - Gray with 12V Socket & Dual USB Designed for exposed mounting applications.Features: Illuminate...
View full details![Blue Sea 4320 Circuit Breaker Switch Panel 4 Position - Gray [4320]](http://cemarine.com/cdn/shop/products/75108XL_512x512.jpg?v=1576634780)
Save 22%
4320 Circuit Breaker Switch Panel 4 Position - GrayDesigned for exposed mounting applications.Features: Illuminated 15A circuit breakers provide s...
View full details![Blue Sea 4309 WeatherDeck 12V DC Waterproof Switch Panel - 8 Position [4309]](http://cemarine.com/cdn/shop/products/51816XL_512x512.jpg?v=1547918345)
Save 31%
WeatherDeck® 12V DC Waterproof Switch Panel - 8 Position Integrated switch guards reduce the risk of accidental switching Panels can be mounted i...
View full details![Blue Sea 4308 WeatherDeck Water Resistant Fuse Panel - 8 Position - Grey [4308]](http://cemarine.com/cdn/shop/products/20417XL_512x512.jpg?v=1547865476)
Save 31%
WeatherDeck™ Water Resistant Fuse PanelPN: 4308Color: GrayFeatures: Panel front rated IP67 when properly mounted with watertight mounting gasket I...
View full details![Blue Sea 4307 WeatherDeck 12V DC Waterproof Switch Panel - 6 Position [4307]](http://cemarine.com/cdn/shop/products/51815XL_512x512.jpg?v=1547918338)
Save 31%
WeatherDeck® 12V DC Waterproof Switch Panel - 6 Position Integrated switch guards reduce the risk of accidental switching Panels can be mounted i...
View full details![Blue Sea 4306 WeatherDeck Water Resistant Fuse Panel - 6 Position - Grey [4306]](http://cemarine.com/cdn/shop/products/20416XL_512x512.jpg?v=1547865469)
Call for Availabity!
WeatherDeck™ Water Resistant Fuse PanelPN: 4306Color: GrayFeatures: Panel front rated IP67 when properly mounted with watertight mounting gasket I...
View full details![Blue Sea 4305 WeatherDeck 12V DC Waterproof Switch Panel - 4 Posistion [4305]](http://cemarine.com/cdn/shop/products/51814XL_512x512.jpg?v=1547918330)
Save 30%
WeatherDeck® 12V DC Waterproof Switch Panel - 4 Position Integrated switch guards reduce the risk of accidental switching Panels can be mounted i...
View full details![Blue Sea 4304 WeatherDeck Water Resistant Fuse Panel - 4 Position - Grey [4304]](http://cemarine.com/cdn/shop/products/20415XL_512x512.jpg?v=1547865462)
Save 31%
WeatherDeck™ Water Resistant Fuse PanelPN: 4304Color: GrayFeatures: Panel front rated IP67 when properly mounted with watertight mounting gasket I...
View full details![Blue Sea 4303 WeatherDeck 12V DC Waterproof Switch Panel - 2 Position [4303]](http://cemarine.com/cdn/shop/products/51813XL_512x512.jpg?v=1547918323)
Save 31%
WeatherDeck® 12V DC Waterproof Switch Panel - 2 Position Integrated switch guards reduce the risk of accidental switching Panels can be mounted i...
View full details![Blue Sea 4302 WeatherDeck Water Resistant Fuse Panel - 2 Position - Grey [4302]](http://cemarine.com/cdn/shop/products/20414XL_512x512.jpg?v=1547865455)
Save 30%
WeatherDeck™ Water Resistant Fuse PanelPN: 4302Color: GrayFeatures: Panel front rated IP67 when properly mounted with watertight mounting gasket I...
View full details![Blue Sea 4230 Push Button Switch Label Kit [4230]](http://cemarine.com/cdn/shop/products/68731XL_512x512.jpg?v=1576633180)
Save 29%
4230 Push Button Switch Label Kit50 ICON Labels used on Backlit Push Button Switches Scratch resistant polycarbonate material Back printed for dur...
View full details![Blue Sea 4218 Square Format Label Set for Battery Management Panels - 30 [4218]](http://cemarine.com/cdn/shop/products/20413XL_512x512.jpg?v=1547865448)
Save 27%
4218Square Format Label Set for Battery Management Panels30 Black DC Labels 30 Common DC Labels Included with Batery Main Distribution Panels Re...
View full details![Blue Sea 4217 Square Format Label Set - 120 [4217]](http://cemarine.com/cdn/shop/products/20412XL_512x512.jpg?v=1547865440)
Save 28%
4217Square Format Label Set120 Black DC labels 120 common DC labels Reinforced, weatherproof material Used on WeatherDeck Waterproof Panels ...
View full details![Blue Sea 4216 Square Format Label Set - 60 [4216]](http://cemarine.com/cdn/shop/products/20411XL_512x512.jpg?v=1547865433)
Save 30%
4216Square Format Labels Set 60 common DC labels. Reinforced, weatherproof material Used on WeatherDeck Waterproof Panels Used on Battery Ma...
View full details![Blue Sea 4215 Square Format Label Set - 30 [4215]](http://cemarine.com/cdn/shop/products/20410XL_512x512.jpg?v=1547865426)
Save 27%
4215Square Format Label Set30 Black DC Labels 30 common DC labels Included with WeatherDeck Waterproof Panels Reinforced, weatherproof materia...
View full details![Blue Sea 4181 Backlit Push Button Switch OFF/(ON) - 15A [4181]](http://cemarine.com/cdn/shop/products/68730XL_512x512.jpg?v=1576633180)
Save 14%
4181 Backlit Push Button Switch OFF/(ON) - 15AFeatures: Backlit button is blue when OFF and red when ON Five ICON labels included: Accessory, Ligh...
View full details![Blue Sea 4180 Backlit Push Button Switch OFF/ON - 15A [4180]](http://cemarine.com/cdn/shop/products/68729XL_512x512.jpg?v=1576633179)
Save 14%
4180 Backlit Push Button Switch OFF/ON - 15AFeatures: Backlit button is blue when OFF and red when ON Five ICON labels included: Accessory, Lights...
View full details![Blue Sea 4163 SS Push Button Switch - Off-(On) - Red - 10A [4163]](http://cemarine.com/cdn/shop/products/70126XL_512x512.jpg?v=1576633560)
Save 22%
4163 SS Push Button Switch - Off-(On) - Red - 10A 10A continuous Single Pole Double Throw or Single Pole Single Throw Can be wired for normally op...
View full details![Blue Sea 4162 SS Push Button Switch - Off-On - Red - 10A [4162]](http://cemarine.com/cdn/shop/products/70125XL_512x512.jpg?v=1576633559)
Save 22%
4162 SS Push Button Switch - Off-On - Red - 10A 10A continuous Single Pole Double Throw or Single Pole Single Throw Can be wired for normally open...
View full details![Blue Sea 4160 SS Push Button Switch - Off-On - Blue - 10A [4160]](http://cemarine.com/cdn/shop/products/70123XL_512x512.jpg?v=1576633558)
Save 22%
4160 SS Push Button Switch - Off-On - Blue - 10A 10A continuous Single Pole Double Throw or Single Pole Single Throw Can be wired for normally ope...
View full details![Blue Sea 4155 WeatherDeck Toggle Switch [4155]](http://cemarine.com/cdn/shop/products/20409XL_512x512.jpg?v=1547865420)
Save 25%
4155WeatherDeck Toggle Switch Pole/Throw DPDT Action ON-OFF-ON Specially manufactured by Carling Technologies for use in Blue Sea Systems' We...
View full details