Marine Circuit Protection

Marine Circuit Protection

Featured Brands

  • Blue Sea Systems® - Marine Grade Short Stop Circuit Breaker
    Blue Sea Systems®Marine Grade Short Stop Circuit Breaker
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    # 5259550419
    Marine Grade Short Stop Circuit Breaker by Blue Sea Systems®. Use a Circuit Breaker instead of a Fuse. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design...
    Corrosion resistant materials to withstand harsh environmentsIP64 water resistant boot protects against dust and splashing water
    $11.62
  • Blue Sea Systems® - 187-Series Circuit Breaker
    Blue Sea Systems®187-Series Circuit Breaker
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    # 5259550021
    187-Series Circuit Breaker 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...
    Combines switching and circuit protection into a single deviceClear, single lever operation
    $67.80 - $102.20
  • Blue Sea Systems® - 285-Series Circuit Breaker
    Blue Sea Systems®285-Series Circuit Breaker
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    # 5259550014
    285-Series Circuit Breaker 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...
    Drop in replacement for 185-Series Circuit BreakersVisible reset lever shows open condition
    $48.66 - $49.38
  • Blue Sea Systems® - A-Series Blank Mounting Panel
    Blue Sea Systems®A-Series Blank Mounting Panel
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    # 5259549924
    A-Series Blank Mounting Panel 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...
    Slate gray matches standard panel color1/8" aluminum 5052 alloy
    $28.42 - $35.29
  • Blue Sea Systems® - A-Series Flat Rocker Circuit Breaker
    Blue Sea Systems®A-Series Flat Rocker Circuit Breaker
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    # 5259550878
    A-Series Flat Rocker Circuit Breaker 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...
    Color actuator indicates "OFF" position"Trip Free" design cannot be held "ON" during fault current condition
    $26.52 - $38.07
  • Blue Sea Systems® - A-Series Raised Rocker Circuit Breaker
    Blue Sea Systems®A-Series Raised Rocker Circuit Breaker
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    # 5259550913
    A-Series Raised Rocker Circuit Breaker by Blue Sea Systems®. Double Pole. 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...
    Color actuator indicates "OFF" position"Trip Free" design cannot be held "ON" during fault current condition
    $37.65
  • Blue Sea Systems® - A-Series Restricted Off Flat Rocker Circuit Breaker
    Blue Sea Systems®A-Series Restricted Off Flat Rocker Circuit Breaker
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    # 5259550566
    A-Series Restricted Off Flat Rocker Circuit Breaker by Blue Sea Systems®. Single Pole. 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...
    Rocker actuator is flush in the "ON" position, eliminating the risk of accidential switchingColor actuator indicates "OFF" position
    $27.78
  • Blue Sea Systems® - A-Series Toggle Circuit Breaker
    Blue Sea Systems®A-Series Toggle Circuit Breaker
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    # 5259549997
    A-Series Toggle Circuit Breaker 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...
    Strict quality control and thorough testingOffered at a reasonable price
    $18.62 - $38.48
  • Blue Sea Systems® - C-Series Flat Rocker Circuit Breaker
    Blue Sea Systems®C-Series Flat Rocker Circuit Breaker
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    # 5259550483
    C-Series Flat Rocker Circuit Breaker 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...
    Color actuator indicates "OFF" positionProvides overcurrent protection for inverters, bow thrusters, and windlasses
    $32.96 - $169.99
  • Blue Sea Systems® - C-Series White Toggle Circuit Breaker
    Blue Sea Systems®C-Series White Toggle Circuit Breaker
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    # 5259550779
    C-Series White Toggle Circuit Breaker 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....
    Strict quality control and thorough testingOffered at a reasonable price
    $38.66 - $159.06
  • Blue Sea Systems® - COTS Military Grade A-Series Circuit Breaker
    Blue Sea Systems®COTS Military Grade A-Series Circuit Breaker
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    # 5259550917
    COTS Military Grade A-Series Circuit Breaker by Blue Sea Systems®. May be suitable for use when military specifications are required under CFR 46. This top-grade product is expertly made in compliance with stringent industry standards...
    Strict quality control and thorough testingOffered at a reasonable price
    $75.61 - $77.10
  • Blue Sea Systems® - Medium Duty Push Button Reset Only Circuit Breaker
    Blue Sea Systems®Medium Duty Push Button Reset Only Circuit Breaker
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    # 5259550538
    Medium Duty Push Button Reset Only Circuit Breaker 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...
    WeatherproofCan be used as Main, Branch, or 24 hour circuit protection
    $47.07 - $48.89
  • Blue Sea Systems® - Push Button Reset Only Circuit Breaker Boot
    Blue Sea Systems®Push Button Reset Only Circuit Breaker Boot
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    # 5259550038
    Push Button Reset Only Circuit Breaker Boot 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....
    Replaces standard mounting nut for mounting on Thermal Push Button Circuit Breakers onlyUV resistant material resists discoloration and cracking
    $5.24
  • Blue Sea Systems® - Push Button Reset Only Quick Connect Circuit Breaker
    Blue Sea Systems®Push Button Reset Only Quick Connect Circuit Breaker
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    # 5259551017
    Push Button Reset Only Quick Connect Circuit Breaker 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...
    Branch circuit breakers (can also be used for 24-hour circuit protection)Quick connect terminal style circuit breakers are incorporated into Blue Sea Systems WeatherDeck Waterproof Circuit Breaker Panels, Dual Battery Bank Main Distribution Panels, and 360 Distribution Panels
    $6.87 - $7.09
  • Blue Sea Systems® - Push Button Reset Only Screw Terminal Circuit Breaker
    Blue Sea Systems®Push Button Reset Only Screw Terminal Circuit Breaker
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    # 5259550587
    Push Button Reset Only Screw Terminal Circuit Breaker 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...
    Branch circuit breakers (can also be used for 24-hour circuit protection)Quick connect terminal style circuit breakers are incorporated into Blue Sea Systems WeatherDeck Waterproof Circuit Breaker Panels, Dual Battery Bank Main Distribution Panels, and 360 Distribution Panels
    $7.13
  • Blue Sea Systems® - ST CLB Circuit Breaker Block
    Blue Sea Systems®ST CLB Circuit Breaker Block
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    # 5259550571
    ST CLB Circuit Breaker Block by Blue Sea Systems®. The advantage of a resettable circuit breaker over a fuse is well known however people find circuit breakers more expensive and difficult to install. The ST CLB Circuit Breaker Block...
    Quick connect clips allow circuit breakers to snap easily into placeTin-plated copper busses and screw terminals
    $45.82 - $99.94
  • Cole Hersee® - 12 V Reset Cycling Thermal Circuit Breaker
    Cole Hersee®12 V Reset Cycling Thermal Circuit Breaker
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    # 4385515981
    12 V Reset Cycling Thermal Circuit Breaker by Cole Hersee®. 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...
    Expertly crafted from premium materialsDesigned to match rigorous quality standards
    $18.03 - $20.12
  • Blue Sea Systems® - 60 Label Set
    Blue Sea Systems®60 Label Set
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    # 5259550903
    60 Label Set 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...
    60 common DC labelsReinforced, weatherproof material
    $12.32 - $12.68
  • Blue Sea Systems® - A3T/Class T Fuse
    Blue Sea Systems®A3T/Class T Fuse
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    # 5259550074
    A3T/Class T 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...
    Extremely fast short-circuit response20,000 Ampere Interrupt Capacity (AIC)
    $43.73 - $45.43
  • Blue Sea Systems® - AGC Fuse
    Blue Sea Systems®AGC Fuse
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    # 5259549856
    AGC 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...
    Strict quality control and thorough testingOffered at a reasonable price
    $1.22 - $20.80
  • Blue Sea Systems® - AMI/MIDI Fuse
    Blue Sea Systems®AMI/MIDI Fuse
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    # 5259550396
    AMI/MIDI 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...
    Fast-acting type fuses ideal for electronic devicesStandard circuit protection device for automobiles and trucks
    $8.83 - $9.08
  • Blue Sea Systems® - ANL Fuse
    Blue Sea Systems®ANL Fuse
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    # 5259550162
    ANL 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...
    Silver-plated connector blades for corrosion resistanceVisible indication of blown condition
    $26.83 - $37.90
  • Blue Sea Systems® - ANL Fuse Block with Insulating Cover
    Blue Sea Systems®ANL Fuse Block with Insulating Cover
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    # 5259550679
    ANL Fuse Block with Insulating Cover 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...
    Accepts 5/16" (M8) ring terminalsFor use on systems up to 32 Volts DC
    $34.57 - $52.18
  • Blue Sea Systems® - ATM Fuse
    Blue Sea Systems®ATM Fuse
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    # 5259549888
    ATM 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...
    Strict quality control and thorough testingOffered at a reasonable price
    $1.79 - $3.17
  • Blue Sea Systems® - ATO/ATC Fuse
    Blue Sea Systems®ATO/ATC Fuse
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    # 5259549903
    ATO/ATC 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...
    Strict quality control and thorough testingOffered at a reasonable price
    $2.22 - $21.84
  • Blue Sea Systems® - ATO/ATC-Style Low Profile Fuse
    Blue Sea Systems®ATO/ATC-Style Low Profile Fuse
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    # 5259550141
    ATO/ATC-Style Low Profile Fuse by Blue Sea Systems®. Use a manually resettable circuit breaker instead of an ATO or ATC fuse. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a...
    Drop in replacement for ATO and ATC blade style fusesManual push button reset complies with ABYC circuit protection requirements
    $13.22
  • Blue Sea Systems® - Class T Fuse
    Blue Sea Systems®Class T Fuse
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    # 5259551009
    Class T 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...
    Extremely fast short-circuit response20,000 Ampere Interrupt Capacity (AIC)
    $43.73 - $45.43
  • Blue Sea Systems® - Class T Fuse Block with Insulating Cover
    Blue Sea Systems®Class T Fuse Block with Insulating Cover
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    # 5259550892
    Class T Fuse Block with Insulating Cover 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....
    Strict quality control and thorough testingOffered at a reasonable price
    $52.18 - $75.21
  • Blue Sea Systems® - GMA Fuse
    Blue Sea Systems®GMA Fuse
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    # 5259549873
    GMA 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...
    Compact sizeVisible indication of blown condition
    $2.30 - $2.98
  • Blue Sea Systems® - MAXI Fuse
    Blue Sea Systems®MAXI Fuse
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    # 5259550985
    MAXI 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...
    EconomicalTin-plated connector blades for corrosion resistance
    $7.46 - $7.91




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.

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