Marine Circuit Protection

Marine Circuit Protection

Featured Brands

  • Blue Sea Systems® - ATO/ATC-Style Low Profile Fuse
    Blue Sea Systems®ATO/ATC-Style Low Profile Fuse (7067)
    0
    # mpn4947148963
    ATO/ATC-Style Low Profile Fuse (7067) by Blue Sea Systems®. Amperage: 25A. 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...
    Drop in replacement for ATO and ATC blade style fusesManual push button reset complies with ABYC circuit protection requirements
    $13.22
  • Blue Sea Systems® - ATO/ATC-Style Low Profile Fuse
    Blue Sea Systems®ATO/ATC-Style Low Profile Fuse (7068)
    0
    # mpn4947148961
    ATO/ATC-Style Low Profile Fuse (7068) by Blue Sea Systems®. Amperage: 30A. 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...
    Drop in replacement for ATO and ATC blade style fusesManual push button reset complies with ABYC circuit protection requirements
    $13.22
  • Blue Sea Systems® - ATO/ATC-Style Low Profile Fuse
    Blue Sea Systems®ATO/ATC-Style Low Profile Fuse (7063)
    0
    # mpn4947148616
    ATO/ATC-Style Low Profile Fuse (7063) by Blue Sea Systems®. Amperage: 7.5A. 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...
    Drop in replacement for ATO and ATC blade style fusesManual push button reset complies with ABYC circuit protection requirements
    $13.22
  • Blue Sea Systems® - ATO/ATC-Style Low Profile Fuse
    Blue Sea Systems®ATO/ATC-Style Low Profile Fuse (7066)
    0
    # mpn4947148557
    ATO/ATC-Style Low Profile Fuse (7066) by Blue Sea Systems®. Amperage: 20A. 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...
    Drop in replacement for ATO and ATC blade style fusesManual push button reset complies with ABYC circuit protection requirements
    $13.22
  • Blue Sea Systems® - Basic AC Panel Label Set
    Blue Sea Systems®Basic AC Panel Label Set (8031)
    0
    # mpn4947149345
    Basic AC Panel 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...
    30 LabelsStrict quality control and thorough testing
    $12.55
  • Blue Sea Systems® - Basic DC Panel Label Set
    Blue Sea Systems®Basic DC Panel Label Set (8030)
    0
    # mpn4947149238
    Basic DC Panel 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...
    30 LabelsStrict quality control and thorough testing
    $12.55
  • Blue Sea Systems® - Black 180 Label Set
    Blue Sea Systems®Black 180 Label Set (7870)
    0
    # mpn4947149336
    Black 180 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...
    180 DC Labels - for the Emergency Vehicle marketReinforced, weatherproof material
    $37.79
  • Blue Sea Systems® - Class T Fuse
    Blue Sea Systems®Class T Fuse (5118)
    0
    # mpn4947149059
    Class T Fuse (5118) by Blue Sea Systems®. Amperage: 250A. 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...
    Extremely fast short-circuit response20,000 Ampere Interrupt Capacity (AIC)
    $43.73
  • Blue Sea Systems® - Class T Fuse
    Blue Sea Systems®Class T Fuse (5119)
    0
    # mpn4947148939
    Class T Fuse (5119) by Blue Sea Systems®. Amperage: 300A. 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...
    Extremely fast short-circuit response20,000 Ampere Interrupt Capacity (AIC)
    $43.73
  • Blue Sea Systems® - Class T Fuse
    Blue Sea Systems®Class T Fuse (5120)
    0
    # mpn4947148811
    Class T Fuse (5120) by Blue Sea Systems®. Amperage: 350A. 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...
    Extremely fast short-circuit response20,000 Ampere Interrupt Capacity (AIC)
    $43.73
  • Blue Sea Systems® - Class T Fuse
    Blue Sea Systems®Class T Fuse (5117)
    0
    # mpn4947148636
    Class T Fuse (5117) by Blue Sea Systems®. Amperage: 225A. 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...
    Extremely fast short-circuit response20,000 Ampere Interrupt Capacity (AIC)
    $45.43
  • Blue Sea Systems® - Class T Fuse
    Blue Sea Systems®Class T Fuse (5121)
    0
    # mpn4947148570
    Class T Fuse (5121) by Blue Sea Systems®. Amperage: 400A. 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...
    Extremely fast short-circuit response20,000 Ampere Interrupt Capacity (AIC)
    $43.73
  • Blue Sea Systems® - Class T Fuse Block with Insulating Cover
    Blue Sea Systems®Class T Fuse Block with Insulating Cover (5502)
    0
    # mpn4947149013
    Class T Fuse Block with Insulating Cover (5502) by Blue Sea Systems®. Function: 225 to 400A. Terminal Stud Size: 3/8" - 16 (M10). This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion...
    The fuse system recommended by most inverter manufacturers for high speed response to short circuitsClear insulating cover, satisfies ABYC/USCG requirements
    $52.18
  • Blue Sea Systems® - Class T Fuse Block with Insulating Cover
    Blue Sea Systems®Class T Fuse Block with Insulating Cover (5007100)
    0
    # mpn4947148889
    Class T Fuse Block with Insulating Cover (5007100) by Blue Sea Systems®. Function: 110 to 200A. Terminal Stud Size: 1/4"-20 (M6). Allows the use of Class T fuses for fast acting circuit protection of inverters and other electronics....
    Four stud design provides ample access around connecting stud to install large cable lugs without obstruction from the fuseInsulating cover satisfies ABYC/USCG insulation requirements
    $75.21
  • Blue Sea Systems® - Class T Fuse Block with Insulating Cover
    Blue Sea Systems®Class T Fuse Block with Insulating Cover (5502100)
    0
    # mpn4947148639
    Class T Fuse Block with Insulating Cover (5502100) by Blue Sea Systems®. Function: 225 to 400A. Terminal Stud Size: 5/16"-18 (M8). Allows the use of Class T fuses for fast acting circuit protection of inverters and other electronics....
    Four stud design provides ample access around connecting stud to install large cable lugs without obstruction from the fuseInsulating cover satisfies ABYC/USCG insulation requirements
    $78.14
  • Blue Sea Systems® - Crimpable In-Line AGC/MDL Fuse Holder
    Blue Sea Systems®Crimpable In-Line AGC/MDL Fuse Holder (5060)
    0
    # mpn4947148899
    Crimpable In-Line AGC/MDL Fuse Holder 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....
    Accepts 12-18 AWG wire30A Maximum fuse amperage
    $3.00
  • Blue Sea Systems® - Dual MRBF Terminal Fuse Block
    Blue Sea Systems®Dual MRBF Terminal Fuse Block (2151)
    0
    # mpn4947148716
    Dual MRBF Terminal Fuse Block by Blue Sea Systems®. Function: 30 to 300A. 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...
    Compact, high-amp fuse-appropriate for DC Main, inverter, windlass, and bow thruster circuit protectionProvides high current protection in tight space constraints
    $34.70
  • Blue Sea Systems® - Extended DC Panel Label Set
    Blue Sea Systems®Extended DC Panel Label Set (8039)
    0
    # mpn4947149381
    Extended DC Panel 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...
    120 DC labelsReinforced, weatherproof material
    $38.95
  • Blue Sea Systems® - GMA Fuse
    Blue Sea Systems®GMA Fuse (5283)
    0
    # mpn4947149111
    GMA Fuse (5283) by Blue Sea Systems®. 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 level of craftsmanship. Manufactured from...
    Compact sizeVisible indication of blown condition
    $2.30
  • Blue Sea Systems® - GMA Fuse
    Blue Sea Systems®GMA Fuse (5282)
    0
    # mpn4947149088
    GMA Fuse (5282) by Blue Sea Systems®. Amperage: 3A. 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...
    Compact sizeVisible indication of blown condition
    $2.52
  • Blue Sea Systems® - GMA Fuse
    Blue Sea Systems®GMA Fuse (5280)
    0
    # mpn4947148954
    GMA Fuse (5280) by Blue Sea Systems®. Amperage: 1A. 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...
    Compact sizeVisible indication of blown condition
    $2.98
  • Blue Sea Systems® - Heavy Duty In-Line AGC/MDL Fuse Holder
    Blue Sea Systems®Heavy Duty In-Line AGC/MDL Fuse Holder (5063)
    0
    # mpn4947148920
    Heavy Duty In-Line AGC/MDL Fuse Holder 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....
    Accepts 12-18 AWG wire30A Maximum fuse amperage
    $4.71
  • Blue Sea Systems® - In-Line ATO/ATC Fuse Holder
    Blue Sea Systems®In-Line ATO/ATC Fuse Holder (5064)
    0
    # mpn4947148922
    In-Line ATO/ATC Fuse Holder 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...
    For use with ATO or ATC fusesSupplied with 12 AWG pigtails
    $4.62
  • Blue Sea Systems® - MAXI Fuse
    Blue Sea Systems®MAXI Fuse (5142)
    0
    # mpn4947149065
    MAXI Fuse (5142) by Blue Sea Systems®. Amperage: 70A. 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...
    EconomicalTin-plated connector blades for corrosion resistance
    $7.91
  • Blue Sea Systems® - MAXI Fuse
    Blue Sea Systems®MAXI Fuse (5139)
    0
    # mpn4947149063
    MAXI Fuse (5139) by Blue Sea Systems®. Amperage: 40A. 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...
    EconomicalTin-plated connector blades for corrosion resistance
    $7.46
  • Blue Sea Systems® - MAXI Fuse
    Blue Sea Systems®MAXI Fuse (5140)
    0
    # mpn4947149062
    MAXI Fuse (5140) by Blue Sea Systems®. 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 level of craftsmanship. Manufactured from...
    EconomicalTin-plated connector blades for corrosion resistance
    $7.46
  • Blue Sea Systems® - MAXI Fuse
    Blue Sea Systems®MAXI Fuse (5143)
    0
    # mpn4947149052
    MAXI Fuse (5143) by Blue Sea Systems®. Amperage: 80A. 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...
    EconomicalTin-plated connector blades for corrosion resistance
    $7.91
  • Blue Sea Systems® - MAXI Fuse
    Blue Sea Systems®MAXI Fuse (5138)
    0
    # mpn4947148891
    MAXI Fuse (5138) by Blue Sea Systems®. 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 level of craftsmanship. Manufactured from...
    EconomicalTin-plated connector blades for corrosion resistance
    $7.68
  • Blue Sea Systems® - MAXI Fuse
    Blue Sea Systems®MAXI Fuse (5141)
    0
    # mpn4947148884
    MAXI Fuse (5141) by Blue Sea Systems®. Amperage: 60A. 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...
    EconomicalTin-plated connector blades for corrosion resistance
    $7.68
  • Blue Sea Systems® - MAXI Fuse Block
    Blue Sea Systems®MAXI Fuse Block (5006100)
    0
    # mpn4947148938
    MAXI 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...
    Snap-on terminal cover insulates all conductive parts, satisfying ABYC/USCG requirementsCover breakouts allow wires from sides or bottom
    $36.35




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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