Marine Circuit Protection

Marine Circuit Protection

Featured Brands

  • Blue Sea Systems® - MDL Fuse
    Blue Sea Systems® - MDL Fuse
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    # 5259550685
    MDL Fuse by Blue Sea Systems®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...
    For use with Blue Sea Systems' ST Glass Fuse Blocks and AGC™ or MDL™ fuse holdersAGC™ and MDL™ fuses are typically used in DC systems up to 32V DC
    $2.47 - $4.63
    Availability Varies - Depends on Product Options
  • Blue Sea Systems® - MEGA™/AMG™ Fuse
    Blue Sea Systems® - MEGA™/AMG™ Fuse
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    # 5259550824
    MEGA™/AMG™ Fuse by Blue Sea Systems®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Most economical fuse for 100-300 Ampere circuit protectionFor use with Blue Sea Systems' MEGA™/AMG™ Fuse Block
    $10.26 - $11.66
    In Stock - Ships within 24 hrs
  • Blue Sea Systems® - MRBF Surface Mount Fuse Block
    Blue Sea Systems® - MRBF Surface Mount Fuse Block
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    # 5259550115
    MRBF Surface Mount Fuse Block by Blue Sea Systems®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Accommodates three MRBF fuses for consolidated high amperage circuit protectionClip-on insulating cover satisfies ABYC/USCG insulation requirements
    $42.40 - $46.55
    In Stock - Ships within 24 hrs
  • Blue Sea Systems® - MRBF Terminal Fuse
    Blue Sea Systems® - MRBF Terminal Fuse
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    # 5259550427
    MRBF Terminal Fuse by Blue Sea Systems®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Requires the use of Terminal Fuse Blocks PN 5191 or PN 2151-do not mount the fuse directly to the battery terminalInterrupt rating satisfies ABYC requirements for DC Main circuit protection on large battery banks
    $16.72 - $20.65
    Availability Varies - Depends on Product Options
  • Blue Sea Systems® - ST Blade Battery Terminal Mount Fuse Block
    Blue Sea Systems® - ST Blade Battery Terminal Mount Fuse Block
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    # 5259550821
    ST Blade Battery Terminal Mount Fuse Block by Blue Sea Systems®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....
    Mounts on the battery terminal studScrew terminals for securing wires
    $21.18 - $31.27
    In Stock - Ships within 24 hrs
  • Blue Sea Systems® - ST Blade Compact Fuse Blocks
    Blue Sea Systems® - ST Blade Compact Fuse Blocks
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    # 5259549967
    ST Blade Compact Fuse Blocks by Blue Sea Systems®. Provides surface mount circuit protection for ATO™/ATC™ Fuses in a compact footprint. This top-grade product is expertly made in compliance with stringent industry standards to...
    Ignition protected when cover is secure -meets ISO 8846 and SAE J1171 for use in a gasoline engine compartmentSingle side design allows wire entry from one side to minimize footprint
    $30.53 - $41.49
    In Stock - Ships within 24 hrs
  • Blue Sea Systems® - ST Blade Fuse Block
    Blue Sea Systems® - ST Blade Fuse Block
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    # 5259549992
    ST Blade Fuse Block by Blue Sea Systems®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Accepts ring or snap fork type terminalsStrict quality control and thorough testing
    $33.12 - $51.00
    In Stock - Ships within 24 hrs
  • Blue Sea Systems® - ST Blade Water-Resistant Fuse Block with Cover
    Blue Sea Systems® - ST Blade Water-Resistant Fuse Block with Cover
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    # 5259549870
    ST Blade Water-Resistant Fuse Block with Cover by Blue Sea Systems®. Provides water-resistant circuit protection for ATO/ATC fuses & circuit breakers in a compact footprint. allows for simple wiring with standard toolsthan 4 loads are...
    Water-resistant design with standard ring or spade type terminalsAccepts a wide range of wire sizes
    $30.94 - $33.74
    In Stock - Ships within 24 hrs
  • Blue Sea Systems® - ST Glass 6 Circuit Fuse Block
    Blue Sea Systems® - ST Glass 6 Circuit Fuse Block
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    # 5259550993
    ST Glass 6 Circuit Fuse Block by Blue Sea Systems®. Innovative design allows for labeling, spare fuse storage, and easy fuse removal. This top-grade product is expertly made in compliance with stringent industry standards to offer a...
    Clear insulating cover with label recesses for accept Large Format LabelsCover insulates all conductive parts, satisfying ABYC/USCG requirements and storing spare fuses
    $32.00 - $37.67
    In Stock - Ships within 24 hrs
  • Blue Sea Systems® - Terminal Block
    Blue Sea Systems® - Terminal Block
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    # 5259550211
    Terminal Block by Blue Sea Systems®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...
    Closed back design completely insulates power from the mounting surfaceEach screw pair is one isolated circuit
    $3.87 - $26.48
    Availability Varies - Depends on Product Options
  • Blue Sea Systems® - Terminal Block Jumper
    Blue Sea Systems® - Terminal Block Jumper
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    # 5259550981
    Terminal Block Jumper by Blue Sea Systems®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Jumpers allow creation of common circuits on independent connectors5 in Retail Pack
    $3.76 - $4.19
    In Stock - Ships within 24 hrs
  • Blue Sea Systems® - easyID Fuse
    Blue Sea Systems® - easyID Fuse
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    # 5259550828
    easyID Fuse by Blue Sea Systems®. ATC™ fuses illuminate when blowneasyID™ illuminated ATC™ blade fuses use Light Emitting Diode (LED) technology to show that a fuse has blown, making them easy to spot in fuse panels tucked up...
    Replaces non illuminating ATO™ or ATC™ fusesFast acting
    $5.09 - $38.95
    Availability Varies - Depends on Product Options
  • DS18® - Marine Fuse Holder
    DS18® - Marine Fuse Holder
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    # 3795146265
    Marine Fuse Holder by DS18®. Sold individually. DS18 has new fuse holders that you can be sure to use in almost all weather conditions, the MFH8. This weatherproof fuse holder is completely sealed from the elements. It comes with...
    Perfect blend of leading innovations and superior workmanshipManufactured to offer high value and everlasting reliability
    $11.95 - $16.95
    In Stock - Ships within 24 hrs
  • Sea Dog® - 20 A AGC Fuse Terminal Block
    Sea Dog® - 20 A AGC Fuse Terminal Block
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    # 4909875424
    20 A AGC Fuse Terminal Block by Sea Dog®. Combination multiple gang fuse blocks with brass fuse clips and screws. Can be used with 1/4" x 1-1/4" fuses for circuit distribution and also features separate grounding terminal bar. Designed...
    Expertly crafted from premium materialsDesigned to match rigorous quality standards
    $18.53 - $25.20
    In Stock - Ships in 24 to 48 hrs
  • Sea Dog® - 7/16" AGC Black Fuse Holder with Screw-On Cap
    Sea Dog® - 7/16" AGC Black Fuse Holder with Screw-On Cap
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    # 4385515975
    7/16" AGC Black Fuse Holder with Screw-On Cap by Sea Dog®. The panel mounted AGC Fuse Holder provides over-current protection in electrical circuits. Solder terminal. Accepts standard 1/4" x 1-1/4" AGC Style Fuses 444101-444115, and...
    Expertly crafted from premium materialsDesigned to match rigorous quality standards
    $1.24 - $3.69
    Availability Varies - Depends on Product Options
  • Sea Dog® - AGC Watertight Inline Dual Fuse Holder
    Sea Dog® - AGC Watertight Inline Dual Fuse Holder
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    # 4909875537
    AGC Watertight Inline Dual Fuse Holder by Sea Dog®. Watertight holders feature snap tight connection for use in wet or semi-wet locations. Fuse holder has a special designed case that is molded with a second fuse pocket allowing a spare...
    Expertly crafted from premium materialsDesigned to match rigorous quality standards
    $11.00 - $12.05
    Availability Varies - Depends on Product Options
  • Rig Rite® - 60 A 12-36 V Manual Reset Circuit Breaker
    Rig Rite® - 60 A 12-36 V Manual Reset Circuit Breaker (360)
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    # mpn1578802590
    60 A 12-36 V Manual Reset Circuit Breaker by Rig Rite®. Circuit Breaker with manual reset for trolling motors. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at...
    Manual resetExpertly crafted from premium materials
    $65.79
    In Stock - Ships in 24 to 48 hrs
  • Lewmar® - 70 A Waterproof Thermal Circuit Breaker
    Lewmar® - 70 A Waterproof Thermal Circuit Breaker (68000240)
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    # mpn4476179765
    70 A Waterproof Thermal Circuit Breaker by Lewmar®. To be installed with Lewmar Electric winches and windlasses. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology...
    WaterproofExpertly crafted from premium materials
    $140.21
    In Stock - Ships in 24 to 48 hrs
  • Rig Rite® - 30 A 24 V Circuit Breaker with Manual Reset
    Rig Rite® - 30 A 24 V Circuit Breaker with Manual Reset (1030)
    0
    # mpn1578802514
    30 A 24 V Circuit Breaker with Manual Reset by Rig Rite®. Better than a fuse which can blow and ruin a fishing trip. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...
    Manual resetEngineered to high standards
    $16.73
    In Stock - Ships in 24 to 48 hrs
  • Rig Rite® - 40 A 24 V Circuit Breaker with Manual Reset
    Rig Rite® - 40 A 24 V Circuit Breaker with Manual Reset (1040)
    0
    # mpn1578802513
    40 A 24 V Circuit Breaker with Manual Reset by Rig Rite®. Better than a fuse which can blow and ruin a fishing trip. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...
    Manual resetEngineered to high standards
    $16.73
    In Stock - Ships in 24 to 48 hrs
  • Rig Rite® - 40 A 12/24 V Automatic Reset Circuit Breaker
    Rig Rite® - 40 A 12/24 V Automatic Reset Circuit Breaker (340)
    0
    # mpn1578802592
    40 A 12/24 V Automatic Reset Circuit Breaker by Rig Rite®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...
    Expertly crafted from premium materialsDesigned to match rigorous quality standards
    $13.99
    In Stock - Ships in 24 to 48 hrs
  • Rig Rite® - 50 A 24 V Circuit Breaker with Manual Reset
    Rig Rite® - 50 A 24 V Circuit Breaker with Manual Reset (1050)
    0
    # mpn1578802512
    50 A 24 V Circuit Breaker with Manual Reset by Rig Rite®. Better than a fuse which can blow and ruin a fishing trip. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...
    Manual resetEngineered to high standards
    $16.73
    In Stock - Ships in 24 to 48 hrs
  • Blue Sea Systems® - A-Series Flat Rocker Circuit Breaker
    Blue Sea Systems® - A-Series Flat Rocker Circuit Breaker (7403)
    0
    # mpn4947149366
    A-Series Flat Rocker Circuit Breaker (7403) by Blue Sea Systems®. Single Pole. Amperage: 15A. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high...
    Rocker actuator is flush in the "ON" position, eliminating the risk of accidential switchingColor actuator indicates "OFF" position
    $21.67
    In Stock - Ships within 24 hrs
  • Blue Sea Systems® - A-Series Flat Rocker Circuit Breaker
    Blue Sea Systems® - A-Series Flat Rocker Circuit Breaker (7400)
    0
    # mpn4947149365
    A-Series Flat Rocker Circuit Breaker (7400) by Blue Sea Systems®. Single Pole. Amperage: 5A. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high...
    Rocker actuator is flush in the "ON" position, eliminating the risk of accidential switchingColor actuator indicates "OFF" position
    $21.67
    In Stock - Ships within 24 hrs
  • Blue Sea Systems® - A-Series Flat Rocker Circuit Breaker
    Blue Sea Systems® - A-Series Flat Rocker Circuit Breaker (7408)
    0
    # mpn4947149307
    A-Series Flat Rocker Circuit Breaker (7408) by Blue Sea Systems®. Single Pole. Amperage: 50A. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high...
    Rocker actuator is flush in the "ON" position, eliminating the risk of accidential switchingColor actuator indicates "OFF" position
    $21.16
    In Stock - Ships within 24 hrs
  • Blue Sea Systems® - A-Series Flat Rocker Circuit Breaker
    Blue Sea Systems® - A-Series Flat Rocker Circuit Breaker (7410)
    0
    # mpn4947149306
    A-Series Flat Rocker Circuit Breaker (7410) by Blue Sea Systems®. Double Pole. Amperage: 10A. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high...
    Color actuator indicates "OFF" position"Trip Free" design cannot be held "ON" during fault current condition
    $35.29
    In Stock - Ships within 24 hrs
  • Blue Sea Systems® - A-Series Flat Rocker Circuit Breaker
    Blue Sea Systems® - A-Series Flat Rocker Circuit Breaker (7401)
    0
    # mpn4947149305
    A-Series Flat Rocker Circuit Breaker (7401) by Blue Sea Systems®. Single Pole. Amperage: 8A. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high...
    Rocker actuator is flush in the "ON" position, eliminating the risk of accidential switchingColor actuator indicates "OFF" position
    $21.16
    In Stock - Ships within 24 hrs
  • Blue Sea Systems® - A-Series Flat Rocker Circuit Breaker
    Blue Sea Systems® - A-Series Flat Rocker Circuit Breaker (7411)
    0
    # mpn4947149286
    A-Series Flat Rocker Circuit Breaker (7411) by Blue Sea Systems®. Double Pole. Amperage: 15A. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high...
    Color actuator indicates "OFF" position"Trip Free" design cannot be held "ON" during fault current condition
    $29.49
    In Stock - Ships within 24 hrs
  • Blue Sea Systems® - A-Series Flat Rocker Circuit Breaker
    Blue Sea Systems® - A-Series Flat Rocker Circuit Breaker (7404)
    0
    # mpn4947149217
    A-Series Flat Rocker Circuit Breaker (7404) by Blue Sea Systems®. Single Pole. Amperage: 20A. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high...
    Rocker actuator is flush in the "ON" position, eliminating the risk of accidential switchingColor actuator indicates "OFF" position
    $26.95
    In Stock - Ships in 24 to 48 hrs
  • Blue Sea Systems® - A-Series Flat Rocker Circuit Breaker
    Blue Sea Systems® - A-Series Flat Rocker Circuit Breaker (7406)
    0
    # mpn4947149208
    A-Series Flat Rocker Circuit Breaker (7406) by Blue Sea Systems®. Single Pole. Amperage: 30A. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high...
    Rocker actuator is flush in the "ON" position, eliminating the risk of accidential switchingColor actuator indicates "OFF" position
    $21.16
    In Stock - Ships within 24 hrs




Regular marine circuit protection is as critical to your boat’s electrical system as costly if ignored. Just like in your home or car, the electrical wiring and components in your boat need protection from current overflow and short circuits. The excess current causes excessive heat generation, which can result in catastrophic electrical fires and/or serious damage. The smaller the wire is, the more heat will be produced with the same amount of current. The primary job of circuit protection devices like fuses and circuit breakers is to stop the heat created during circuit overload from going to your boat’s appliances and devices, thus preventing equipment from overheating and keeping you safe.

On our digital shelves, we handpick top-notch circuit protection devices such as circuit breakers and fuses specially designed for maritime use. Marine circuit breakers and fuses will keep your boat’s electrical circuit reliably protected in the event of overcurrent or overload. They’re intended for the same purpose but use different ways to achieve it. In the event of a fault, a circuit breaker will break the link and prevent all current from flowing through the wire. Unlike a fuse that blows if the current exceeds and needs to be replaced, a circuit breaker can be used again by resetting it once it has tripped. However, fuses generally are more budget-friendly. We also have fuse blocks used to distribute power in your boat’s electrical system as well as fuse holders providing a way to keep, protect, and mount fuses. Plus, you’ll find a wide range of top-grade circuit breaker and fuse accessories that will come in handy to ensure their optimum functionality.