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  1. Blue Sea 5037 ST Blade Fuse Block w/o Cover - 6 Circuit Independent w/o Negative Bus
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    ST Blade Fuse Block w/o Cover - 6 Circuit w/o Negative BusPart# 5037Can be used for 24-hour circuitsFuse blocks with covers include 20 write-on circuit labelsTin-plated copper buses and fuse clipsAcce... Learn More
    was $42.99 Special Price $41.27
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  2. Blue Sea 7623 ML-Series Heavy Duty Automatic Charging Relay - 24V
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    7623Manual Control: YesCoil Voltage: 24vFeatures:Manual control switch provides an added level of safety allowing control with or without power, and offering "Locked Off" capability for servicingInclu... Learn More
    was $222.99 Special Price $214.07
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  3. Blue Sea 4015 CableCap - Black 1.25 to 0.70
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    CableCap - Black 1.25 to 0.70Features:Insulate stud type connectors on alternators, starters, windlasses and other high amperage devicesWARNING: This product can expose you to chemicals including di(2... Learn More
    was $6.99 Special Price $6.71
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  4. Blue Sea 8367 AC Rotary Switch Panel 30 Ampere 2 Positions + OFF, 2 Pole
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    AC Rotary Switch Panel 30 Ampere 2 positions + OFF, 2 PolePoles: 2Voltage: 120vAmperage: 30Positions: 2 + OFFSwitches 2 - 120 Volt AC sources Includes 9011 heavy duty industrial rated switch Two-part ... Learn More
    was $233.99 Special Price $224.63
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  5. Blue Sea 7087 100 Amp Circuit Breaker Panel Mount 285 Series
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    285-Series Circuit Breaker Panel Mount - 100A Drop in replacement for 185-Series Circuit Breakers Visible reset lever shows open condition "Trip Free" - cannot be held closed after tripWARNING: This p... Learn More
    was $57.99 Special Price $55.67
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  6. Blue Sea 5025 ST Blade Fuse Block w/Cover - 6 Circuit w/Negative Bus
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    5025 ST Blade Fuse Block with Cover - 6 Circuit with Negative Bus Features:Clear insulating cover with label recesses accept Small Format LabelsCover Satisfies ABYC/USCG requirements for insulati... Learn More
    was $42.99 Special Price $37.83
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  7. Blue Sea 5239 5A ATO/ATC Fuse
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    5239ATO/ATC Fuse5AFast-acting type fuse ideal for electronic devices Standard circuit protection device for automobiles and trucksTin-plated connector blades for corrosion resistanceVisible indication... Learn More
    was $2.99 Special Price $2.87
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  8. Blue Sea 5026 ST Blade Fuse Block w/Cover - 12 Circuit w/Negative Bus
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    5026 ST Blade Fuse Block with Cover - 12 Circuit with Negative Bus Features:Clear insulating cover with label recesses accept Small Format LabelsCover Satisfies ABYC/USCG requirements for insulat... Learn More
    was $53.99 Special Price $47.51
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  9. Blue Sea 8292 Water Resistant Contura III Switch - OFF-(ON) - Black
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    Water Resistant Contura Switch - OFF-(ON) - BlackFeatures:Vibration, shock, thermoshock, moisture, and salt spray resistantSpecially manufactured for mounting in Blue Sea Systems' water-resistant ... Learn More
    was $14.99 Special Price $14.39
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  10. Blue Sea 5237 3A ATO/ATC Fuse
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    5237ATO/ATC Fuse3AFast-acting type fuse ideal for electronic devices Standard circuit protection device for automobiles and trucksTin-plated connector blades for corrosion resistanceVisible indication... Learn More
    was $2.99 Special Price $2.87
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  11. Blue Sea 7650 Add-A-Battery
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    Add-A-Battery7650The 7650 Add-a-Battery simplifies switching and automates charging for a complete two battery bank management solution.A complete two battery bank management solutionDual Circuit Plus... Learn More
    was $182.99 Special Price $119.99
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  12. Blue Sea Push Button Reset Only Screw Terminal Circuit Breaker - 10 Amps
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    Push Button Reset Only Screw Terminal Circuit Breaker - 10 AmpsFeatures:Branch circuit breakers (can also be used for 24-hour circuit protection)Quick connect terminal style circuit breakers are incor... Learn More
    was $8.99 Special Price $8.63
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  13. Blue Sea 7507 DeckHand Dimmer - 12 Amp/12V
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    DeckHand Dimmer - 12 Amp/12V Works with all incandescent and non-regulated LED lamps Memory for last setting Illuminated exit with adjustable time delay Provides continuous voltage control from 0 to 1... Learn More
    was $72.99 Special Price $70.07
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  14. Blue Sea 5065 Waterproof In-Line Fuse Holder ATO/ATC
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    5065ATO/ATC Waterproof In-Line Fuse Holdersupplied with 12 AWG pigtails30A Maximum fuse amperageWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is kn... Learn More
    was $8.99 Special Price $8.63
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  15. Blue Sea 5238 4A ATO/ATC Fuse
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    5238ATO/ATC Fuse4AFast-acting type fuse ideal for electronic devices Standard circuit protection device for automobiles and trucksTin-plated connector blades for corrosion resistanceVisible indication... Learn More
    was $2.99 Special Price $2.87
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  16. Blue Sea 5240 7.5A ATO/ATC Fuse
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    5240ATO/ATC Fuse7.5AFast-acting type fuse ideal for electronic devices Standard circuit protection device for automobiles and trucksTin-plated connector blades for corrosion resistanceVisible indicati... Learn More
    was $2.99 Special Price $2.87
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  17. Blue Sea 5241 10A ATO/ATC Fuse
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    5241ATO/ATC Fuse10AFast-acting type fuse ideal for electronic devices Standard circuit protection device for automobiles and trucksTin-plated connector blades for corrosion resistanceVisible indicatio... Learn More
    was $2.99 Special Price $2.87
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  18. Blue Sea 5236 2A ATO/ATC Fuse
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    5236ATO/ATC Fuse2AFast-acting type fuse ideal for electronic devices Standard circuit protection device for automobiles and trucksTin-plated connector blades for corrosion resistanceVisible indication... Learn More
    was $2.99 Special Price $2.87
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  19. Blue Sea 1733 Mini OLED DC Voltmeter
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    Mini OLED DC VoltmeterMonitors DC voltage on a bright, waterproof, daylight readable OLED screenCompact size enables mounting in any convenient locationIP66 waterproofReverse polarity protectedMounts ... Learn More
    was $50.99 Special Price $48.95
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  20. Blue Sea 8099 AC Main +4 Positions Toggle Circuit Breaker Panel (White Switches)
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    AC Main +4 PositionsPN:   8099White SwitchesFeaturesRed reverse polarity indicating LEDAll hot, neutral and safety ground buses installed, fully pre-wiredLabel backlighting pre-installe... Learn More
    was $273.99 Special Price $263.03
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Blue Sea Systems

Blue Sea Systems makes the highest quality electrical components for any AC or DC marine installation. Switches, bus bars, terminal strips, battery switches, breakers and more.
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