Marine Circuit Protection

Marine Circuit Protection

Featured Brands

  • Blue Sea Systems® - MAXI™ In-Line Fuse Holder
    Blue Sea Systems®MAXI™ In-Line Fuse Holder (5068)
    0
    # mpn4947148900
    MAXI™ In-Line 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...
    Supplied with 5 inch #6 red lead wire and two adhesive lined sealing shrink wrap tubesFire wall surface mounting hole permits two or more holders to be mounted together
    $31.22
  • Blue Sea Systems® - MDL Fuse
    Blue Sea Systems®MDL Fuse (5230)
    0
    # mpn4947149077
    MDL Fuse (5230) by Blue Sea Systems®. 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 level of craftsmanship. Manufactured from...
    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
    $4.63
  • Blue Sea Systems® - MDL Fuse
    Blue Sea Systems®MDL Fuse (5229)
    0
    # mpn4947149020
    MDL Fuse (5229) by Blue Sea Systems®. Amperage: 7.5A. 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...
    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
    $3.10
  • Blue Sea Systems® - MEGA™/AMG™ Fuse
    Blue Sea Systems®MEGA™/AMG™ Fuse (5104)
    0
    # mpn4947149056
    MEGA™/AMG™ Fuse (5104) by Blue Sea Systems®. Amperage: 175A. 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....
    Most economical fuse for 100-300 Ampere circuit protectionFor use with Blue Sea Systems' MEGA™/AMG™ Fuse Block
    $12.93
  • Blue Sea Systems® - MEGA™/AMG™ Fuse
    Blue Sea Systems®MEGA™/AMG™ Fuse (5108)
    0
    # mpn4947149049
    MEGA™/AMG™ Fuse (5108) 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....
    Most economical fuse for 100-300 Ampere circuit protectionFor use with Blue Sea Systems' MEGA™/AMG™ Fuse Block
    $13.30
  • Blue Sea Systems® - MEGA™/AMG™ Fuse
    Blue Sea Systems®MEGA™/AMG™ Fuse (5103)
    0
    # mpn4947149046
    MEGA™/AMG™ Fuse (5103) by Blue Sea Systems®. Amperage: 150A. 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....
    Most economical fuse for 100-300 Ampere circuit protectionFor use with Blue Sea Systems' MEGA™/AMG™ Fuse Block
    $12.93
  • Blue Sea Systems® - MEGA™/AMG™ Fuse
    Blue Sea Systems®MEGA™/AMG™ Fuse (5107)
    0
    # mpn4947148901
    MEGA™/AMG™ Fuse (5107) 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....
    Most economical fuse for 100-300 Ampere circuit protectionFor use with Blue Sea Systems' MEGA™/AMG™ Fuse Block
    $13.30
  • Blue Sea Systems® - MEGA™/AMG™ Fuse
    Blue Sea Systems®MEGA™/AMG™ Fuse (5105)
    0
    # mpn4947148887
    MEGA™/AMG™ Fuse (5105) by Blue Sea Systems®. Amperage: 200A. 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....
    Most economical fuse for 100-300 Ampere circuit protectionFor use with Blue Sea Systems' MEGA™/AMG™ Fuse Block
    $13.30
  • Blue Sea Systems® - MEGA™/AMG™ Fuse
    Blue Sea Systems®MEGA™/AMG™ Fuse (5101)
    0
    # mpn4947148806
    MEGA™/AMG™ Fuse (5101) by Blue Sea Systems®. Amperage: 100A. 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....
    Most economical fuse for 100-300 Ampere circuit protectionFor use with Blue Sea Systems' MEGA™/AMG™ Fuse Block
    $12.93
  • Blue Sea Systems® - MEGA™/AMG™ Fuse
    Blue Sea Systems®MEGA™/AMG™ Fuse (5102)
    0
    # mpn4947148552
    MEGA™/AMG™ Fuse (5102) by Blue Sea Systems®. Amperage: 125A. 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....
    Most economical fuse for 100-300 Ampere circuit protectionFor use with Blue Sea Systems' MEGA™/AMG™ Fuse Block
    $13.30
  • Blue Sea Systems® - MEGA™/AMG™ Fuse Block with Cover
    Blue Sea Systems®MEGA™/AMG™ Fuse Block with Cover (5001)
    0
    # mpn4947149048
    MEGA™/AMG™ Fuse Block with Cover by Blue Sea Systems®. Function: 100-300A. 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...
    Accepts 5/16" (M8) ring terminalsInsulating cover satisfies ABYC/USCG insulation requirements
    $31.34
  • Blue Sea Systems® - MEGA™/AMG™ Safety Fuse Block
    Blue Sea Systems®MEGA™/AMG™ Safety Fuse Block (7721)
    0
    # mpn4947149392
    MEGA™/AMG™ Safety 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...
    Ignition protected for installation aboard gasoline or diesel powered boatsSealed cover protects fuses from the harsh marine environment
    $31.40
  • Blue Sea Systems® - MRBF Surface Mount Fuse Block
    Blue Sea Systems®MRBF Surface Mount Fuse Block (5194)
    0
    # mpn4947149117
    MRBF Surface Mount Fuse Block (5194) by Blue Sea Systems®. Independent Source. 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...
    Accommodates three MRBF fuses for consolidated high amperage circuit protectionIdeal for 3 output battery chargers
    $60.18
  • Blue Sea Systems® - MRBF Surface Mount Fuse Block
    Blue Sea Systems®MRBF Surface Mount Fuse Block (5196)
    0
    # mpn4947149073
    MRBF Surface Mount Fuse Block (5196) by Blue Sea Systems®. Common Source. 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...
    Accommodates three MRBF fuses for consolidated high amperage circuit protectionSafely provides power to three loads from a single source
    $50.95
  • Blue Sea Systems® - MRBF Terminal Fuse
    Blue Sea Systems®MRBF Terminal Fuse (5184)
    0
    # mpn4947149070
    MRBF Terminal Fuse (5184) by Blue Sea Systems®. Amperage: 125A. 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....
    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
    $21.71
  • Blue Sea Systems® - MRBF Terminal Fuse
    Blue Sea Systems®MRBF Terminal Fuse (5181)
    0
    # mpn4947149047
    MRBF Terminal Fuse (5181) 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....
    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
    $21.71
  • Blue Sea Systems® - MRBF Terminal Fuse
    Blue Sea Systems®MRBF Terminal Fuse (5177)
    0
    # mpn4947149011
    MRBF Terminal Fuse (5177) 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....
    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
    $21.71
  • Blue Sea Systems® - MRBF Terminal Fuse
    Blue Sea Systems®MRBF Terminal Fuse (5176)
    0
    # mpn4947149007
    MRBF Terminal Fuse (5176) 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....
    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
    $21.71
  • Blue Sea Systems® - MRBF Terminal Fuse
    Blue Sea Systems®MRBF Terminal Fuse (5190)
    0
    # mpn4947148999
    MRBF Terminal Fuse (5190) 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....
    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
    $21.09
  • Blue Sea Systems® - MRBF Terminal Fuse
    Blue Sea Systems®MRBF Terminal Fuse (5189)
    0
    # mpn4947148956
    MRBF Terminal Fuse (5189) 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....
    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
    $21.09
  • Blue Sea Systems® - MRBF Terminal Fuse
    Blue Sea Systems®MRBF Terminal Fuse (5182)
    0
    # mpn4947148955
    MRBF Terminal Fuse (5182) by Blue Sea Systems®. Amperage: 90A. 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....
    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
    $21.71
  • Blue Sea Systems® - MRBF Terminal Fuse
    Blue Sea Systems®MRBF Terminal Fuse (5178)
    0
    # mpn4947148944
    MRBF Terminal Fuse (5178) 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....
    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
    $21.71
  • Blue Sea Systems® - MRBF Terminal Fuse
    Blue Sea Systems®MRBF Terminal Fuse (5175)
    0
    # mpn4947148936
    MRBF Terminal Fuse (5175) 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....
    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
    $21.71
  • Blue Sea Systems® - MRBF Terminal Fuse
    Blue Sea Systems®MRBF Terminal Fuse (5185)
    0
    # mpn4947148894
    MRBF Terminal Fuse (5185) by Blue Sea Systems®. Amperage: 150A. 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....
    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
    $21.09
  • Blue Sea Systems® - MRBF Terminal Fuse
    Blue Sea Systems®MRBF Terminal Fuse (5186)
    0
    # mpn4947148888
    MRBF Terminal Fuse (5186) by Blue Sea Systems®. Amperage: 175A. 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....
    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
    $21.71
  • Blue Sea Systems® - MRBF Terminal Fuse
    Blue Sea Systems®MRBF Terminal Fuse (5183)
    0
    # mpn4947148614
    MRBF Terminal Fuse (5183) by Blue Sea Systems®. Amperage: 100A. 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....
    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
    $21.09
  • Blue Sea Systems® - MRBF Terminal Fuse
    Blue Sea Systems®MRBF Terminal Fuse (5180)
    0
    # mpn4947148587
    MRBF Terminal Fuse (5180) by Blue Sea Systems®. Amperage: 75A. 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....
    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
    $21.71
  • Blue Sea Systems® - MRBF Terminal Fuse
    Blue Sea Systems®MRBF Terminal Fuse (5187)
    0
    # mpn4947148536
    MRBF Terminal Fuse (5187) by Blue Sea Systems®. Amperage: 200A. 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....
    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
    $21.09
  • Blue Sea Systems® - MRBF Terminal Fuse Block
    Blue Sea Systems®MRBF Terminal Fuse Block (5191)
    0
    # mpn4947149116
    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 craftsmanship....
    Compact, high-amp fuse-appropriate for DC Main, inverter, windlass, and bow thruster circuit protectionProvides high current protection in tight space constraints
    $31.88
  • Blue Sea Systems® - Panel Mount AGC/MDL Fuse Holder
    Blue Sea Systems®Panel Mount AGC/MDL Fuse Holder (5021)
    0
    # mpn4947148927
    Panel Mount 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. Manufactured from...
    Replaces fuse holder found in Contura Waterproof Fuse PanelsEasy to open
    $4.93




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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