Blue Sea Systems

Blue Sea Systems manufactures electrical products engineered to withstand the demanding applications in Marine electrical systems. Marine.com stocks and sells the full line of Blue Sea Systems products, over 1,000 Blue Sea SKUs, including AC/DC Meters, circuit breakers, electrical panels and marine switches. Quality Products engineered for the harsh marine environment and built to last.

Blue Sea Systems Product Guarantee

Blue Sea Systems stands behind its products for as long as you own them. Blue Sea Systems will replace or issue a credit for any of its products found to be defective in materials or manufacture.

  • Marine Battery Chargers and Dimmers
  • Automatic Charging Relay
  • Marine Battery Switches
  • Solenoids
  • BusBars and Insulators
  • Fuses and Fuse Blocks
  • Circuit Breakers
  • Panels
  • Meters
  • Marine Switches
Products 1-24 of 970
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Blue Sea 8294 Contura Switch Actuator - Black - Single Lens
Retail: $2.39
Price: $2.15
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Availability: In Stock
Item #: 11-20795 -

Contura Switch ActuatorColor: BlackNumber of Lenses:SingleMounts on any Blue Sea Systems' Contura Switch Constructed of thermal plastic polycarbonate with a hard nylon surface overlay For each embedded LED there is a corresponding number of lenses WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. ...

Blue Sea 4031 Panel Back Insulating Cover
Price: $108.99
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Availability: Back Order
Item #: 11-20394 -

4031Panel Back Insulating CoversCover for 2 Column x 10 Position + MeterProvides electrical insulation for exposed panel backs Provides mechanical protection for panel backs protruding into lockers Lightweight material is easily drilled for wire entrance and exit Meets ABYC requirements for panels with combined AC and DC Used on Blue Sea Systems toggle style circuit breaker panels onlyWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to...

Blue Sea 4154 WeatherDeck Toggle Switch (on)-off-(on)
Retail: $7.49
Price: $6.74
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Availability: In Stock
Item #: 11-20408 -

4154WeatherDeck Toggle SwitchPole/ThrowSPDTAction(ON)-OFF-(ON)Specially manufactured by Carling Technologies for use in Blue Sea Systems' WeatherDeck™ Panels When mounted with a WeatherDeck Toggle Switch Boot Rated IP67-temporay immersion for 30 minutes Nickel-plated brass and phenolic non-corrosive constructionWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other...

Blue Sea 9010 Switch, AV 120VAC 32A OFF +3 Positions
Price: $165.99
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Availability: In Stock
Item #: 11-20950 -

9010Switch, AC 120VACAmperes32Positions3+OFFPoles2Switches 2 - 120 or 230 Volt AC sources Compact solution when circuit protection is provided elsewhere Allows connecting one of two different AC sources to one circuit Mounts in panels up to 0.16" (4.00mm) thick Heavy duty industrial rated switch Intuitive function - One hand operation UL listed 600 Volt AC max WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of...

Blue Sea 8267 End Mount Contura Switch Mounting Panel
Retail: $3.49
Price: $3.14
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Availability: In Stock
Item #: 11-20773 -

8267Contura Switch Mounting PanelEnd Mounting PanelModular design permits easy assembly in groups of varying sizes Designed for mounting in 6 different panel thicknesses: 0.06" (1.57mm) 0.09" (2.36mm) 0.13" (3.17mm)0.19" (4.75mm) 0.25" (6.35mm) 0.38" (9.52mm) WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to...

Blue Sea 8217 Grey Small Format Label Kit - 60 Labels
Retail: $11.49
Price: $10.34
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Availability: In Stock
Item #: 11-20736 -

Small Format Labels60 common DC labelsReinforced, weatherproof material Used on all Contura Waterproof Circuit Breaker Panels Used on Contura Waterproof Fuse Panels Used on ST Blade Fuse Blocks WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. ...

Blue Sea 8212 Toggle Panel Switch
Retail: $23.99
Price: $21.59
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Availability: Back Order
Item #: 11-20733 -

Panel SwitchPN:8212Type:TogglePole / Throw:DPDTAction ( ) = momentary:(ON) - OFF - ONFeatures:Perfect for generator starters, bilge pumps, horns, wipers, engine controls and any other application that requires switching action other than ON-OFF or different pole configuration separate from circuit protectionAll panel switches mount in Blue Sea Systems toggle type circuit breaker panelsSupplied with mounting adapter for standard 5/8" circuit breaker mounting holeNickel-plated brass and...

Blue Sea 8218 Water Resistant Contura III Switch - Gray
Retail: $14.99
Price: $13.49
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Availability: In Stock
Item #: 11-20737 -

Water Resistant Contura Switch - GrayPN:8218Pole:DoubleThrow:SingleAction ( ) = momentary:OFF - ONEmbedded LEDs:1Features:Vibration, shock, thermoshock, moisture and salt spray resistantSpecially manufactured for mounting in Blue Sea Systems' water resistant panelsIgnition Protected - Safe for installation aboard gasoline powered boatsMeets UL1500 and ISO8846 ignition protection requirementsSpecifications Rating: 12 Volts DC20 Amperes Rating: 24 Volts DC15 AmperesLightedLED rated...

Blue Sea 9077 Switch, AC 240VAC 63A OFF +3 Positions
Price: $474.99
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Availability: In Stock
Item #: 11-20954 -

9077Switch, AC 240VACAmperes65Positions3+OFFPoles3Switches 3 - 120/240 Volt AC sources Switches both lines (hot) and neutralCompact solution when circuit protection is provided elsewhere Allows connecting one of two different AC sources to one circuit Mounts in panels up to 0.16" (4.00mm) thick Heavy duty industrial rated switch Intuitive function - One hand operation UL listed 600 Volt AC max WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp)...

Blue Sea 8260 6 Position Contura Switch Mounting Panels
Retail: $13.49
Price: $12.14
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Availability: In Stock
Item #: 11-20769 -

8260Contura Switch Mounting Panel6 PositionModular design permits easy assembly in groups of varying sizesDesigned for mounting in 6 different panel thicknesses:0.06" (1.57mm) 0.09" (2.36mm) 0.13" (3.17mm) 0.19" (4.75mm) 0.25" (6.35mm) 0.38" (9.52mm) WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. ...

Blue Sea 9019 Switch, AC 240VAC 63A OFF +2 Positions
Price: $375.99
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Availability: In Stock
Item #: 11-20953 -

9019Switch, AC 240VACAmperes63Positions2+OFFPoles3Switches 2 - 120/240 Volt AC sources Compact solution when circuit protection is provided elsewhere Allows connecting one of two different AC sources to one circuit Mounts in panels up to 0.16" (4.00mm) thick Heavy duty industrial rated switch Intuitive function - One hand operation UL listed 600 Volt AC max WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of...

Blue Sea 8283 Water Resistant Contura III Switch - Black
Retail: $15.49
Price: $13.94
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Availability: In Stock
Item #: 11-20784 -

Water Resistant Contura Switch - BlackPN:8283Pole:SingleThrow:DoubleAction ( ) = momentary:ON - OFF - ONEmbedded LEDs:2Features:Vibration, shock, thermoshock, moisture and salt spray resistantSpecially manufactured for mounting in Blue Sea Systems' water resistant panelsIgnition Protected - Safe for installation aboard gasoline powered boatsMeets UL1500 and ISO8846 ignition protection requirementsSpecifications Rating: 12 Volts DC20 Amperes Rating: 24 Volts DC15 AmperesLightedLED...

Blue Sea 8231 Water Resistant Contura III Switch - Gray
Retail: $12.49
Price: $11.24
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Availability: In Stock
Item #: 11-20743 -

Water Resistant Contura Switch - GrayPN:8231Pole:SingleThrow:SingleAction ( ) = momentary:OFF - (ON)Embedded LEDs:-Features:Vibration, shock, thermoshock, moisture and salt spray resistantSpecially manufactured for mounting in Blue Sea Systems' water resistant panelsIgnition Protected - Safe for installation aboard gasoline powered boatsMeets UL1500 and ISO8846 ignition protection requirementsSpecifications Rating: 12 Volts DC20 Amperes Rating: 24 Volts DC15 AmperesLightedLED rated...

Blue Sea 8209 Toggle Panel Switch
Retail: $14.49
Price: $13.04
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Availability: Back Order
Item #: 11-20730 -

Panel SwitchPN:8209Type:TogglePole / Throw:SPAction ( ) = momentary:OFF - ON - (ON)Features:Perfect for generator starters, bilge pumps, horns, wipers, engine controls and any other application that requires switching action other than ON-OFF or different pole configuration separate from circuit protectionAll panel switches mount in Blue Sea Systems toggle type circuit breaker panelsSupplied with mounting adapter for standard 5/8" circuit breaker mounting holeNickel-plated brass and...

Blue Sea 4125 AC A-Series Circuit Breaker Lockout Slide
Retail: $19.49
Price: $17.54
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Availability: In Stock
Item #: 11-13876 -

4125 AC A-Series Circuit Breaker Lockout Slide Features:Allows only 1 double pole AC circuit breaker to be activated at a timeGuarantees that AC power from 2 sources (shore power and genset or inverter) will not be mixedFits all World or A-Series and Rocker double pole circuit breakersUses circuit breaker mounting screw holes. Requires no special panel modificationIncludes mounting screwsWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is...

Blue Sea 4150 WeatherDeck Toggle Switches
Retail: $7.49
Price: $6.74
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Availability: In Stock
Item #: 11-20404 -

4150WeatherDeck Toggle Switch Pole/ThrowSPSTActionOFF-ONSpecially manufactured by Carling Technologies for use in Blue Sea Systems' WeatherDeck™ Panels When mounted with a WeatherDeck Toggle Switch Boot Rated IP67-temporay immersion for 30 minutes Nickel-plated brass and phenolic non-corrosive constructionWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other...

Blue Sea 4218 Square Format Label Set for Battery Management Panels - 30
Retail: $17.99
Price: $16.19
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Availability: In Stock
Item #: 11-20413 -

4218Square Format Label Set for Battery Management Panels30 Black DC Labels30 Common DC LabelsIncluded with Batery Main Distribution PanelsReinforced, weatherproof materialUsed on WeatherDeck Waterproof PanelsUsed on Battery Management PanelsUsed on 360 panel systemWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to...

Blue Sea 8296 Contura Switch Actuator - Black - No Lense
Retail: $2.39
Price: $2.15
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Availability: In Stock
Item #: 11-20797 -

Contura Switch ActuatorColor: BlackNumber of Lenses: No LensMounts on any Blue Sea Systems' Contura Switch Constructed of thermal plastic polycarbonate with a hard nylon surface overlay For each embedded LED there is a corresponding number of lenses WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. ...

Blue Sea 8230 Water Resistant Contura III Switch - Gray
Retail: $12.49
Price: $11.24
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Availability: In Stock
Item #: 11-20742 -

Water Resistant Contura Switch - GrayPN:8230Pole:SingleThrow:SingleAction ( ) = momentary:OFF - ONEmbedded LEDs:1Features:Vibration, shock, thermoshock, moisture and salt spray resistantSpecially manufactured for mounting in Blue Sea Systems' water resistant panelsIgnition Protected - Safe for installation aboard gasoline powered boatsMeets UL1500 and ISO8846 ignition protection requirementsSpecifications Rating: 12 Volts DC20 Amperes Rating: 24 Volts DC15 AmperesLightedLED rated...

Blue Sea 8278 Contura Switch Mounting Panel Plug
Retail: $3.69
Price: $3.32
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Availability: In Stock
Item #: 11-20781 -

Contura Switch Mounting Panel PlugSuitable for use with Contura Switch Mounting PanelWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. ...

Blue Sea 1012 Single Plug w/Single Socket Extension
Retail: $32.49
Price: $29.24
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Availability: In Stock
Item #: 11-45011 -

Single Plug with Single Socket ExtensionFeatures: Plug has a moisture proof sealing ring around the shaft to keep out spray and make it seal firmly in the outlet Plug features an "ON" indicating LED, moisture proof sealing ring, strain relief, and a built-in 10 Amp fuse Socket features a watertight cap, easy installation and interlocks with the plug Heavy duty 18 gauge wire Cord reaches up to 6 feet Designed to withstand the rigors of wet environments and constant vibration Large contact...

Blue Sea 8167 Amber LED Indicator Light
Retail: $3.49
Price: $3.14
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Availability: In Stock
Item #: 11-20711 -

8167LED Indicator LightAmber230V AC0.25 MilliamperesEasily installed in any Blue Sea Systems circuit breaker panel Simple push-in installation mounts in any thickness material Useful as general indicator and alarm lights WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. ...

Blue Sea 4111 360 Panel Adapter for Push Button Reset Only
Retail: $5.69
Price: $5.12
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Availability: In Stock
Item #: 11-20396 -

4111 360 Panel Adapter for Push Button Reset OnlyFeatures:Adapts Push Button Reset-Only Thermal Circuit Breaker to Blue Sea Systems' rocker panels and new battery management panelsWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. ...

Blue Sea 4100 Toggle Guard
Retail: $4.39
Price: $3.95
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Availability: Back Order
Item #: 11-14566 -

4100 Toggle GuardFeatures:Protects circuit breakers from being accidentally switched ON or OFFFits all A-Series single pole circuit breakersFits all panel switchesCan be used on any brand of circuit breaker panel using standard toggle type circuit breakersUses circuit breaker mounting screw holeIncludes 2 mounting screwsWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or...