Marine Circuit Protection

Marine Circuit Protection

Featured Brands

  • Blue Sea Systems® - UL-489 Circuit Breaker
    Blue Sea Systems®UL-489 Circuit Breaker (7457)
    0
    # mpn4947149171
    UL-489 Circuit Breaker (7457) by Blue Sea Systems®. Flat Rocker. Amperage: 20A. Interrupt Capacity: 5000A. Terminal Type: #10-32 Screw Stainless Steel. Suitable for use when UL-489 specifications are required (Navy, Army, or Coast Guard...
    Strict quality control and thorough testingOffered at a reasonable price
    $41.34
  • Blue Sea Systems® - UL-489 Circuit Breaker
    Blue Sea Systems®UL-489 Circuit Breaker (7440)
    0
    # mpn4947149167
    UL-489 Circuit Breaker (7440) by Blue Sea Systems®. Flat Rocker. Amperage: 5A. Interrupt Capacity: 10000A. Terminal Type: #10-32 Screw Tin-Plated Brass. Suitable for use when UL-489 specifications are required (Navy, Army, or Coast...
    Strict quality control and thorough testingOffered at a reasonable price
    $41.34
  • Blue Sea Systems® - UL-489 Circuit Breaker
    Blue Sea Systems®UL-489 Circuit Breaker (7445)
    0
    # mpn4947149165
    UL-489 Circuit Breaker (7445) by Blue Sea Systems®. Flat Rocker. Amperage: 50A. Interrupt Capacity: 10000A. Terminal Type: #10-32 Screw Tin-Plated Brass. Suitable for use when UL-489 specifications are required (Navy, Army, or Coast...
    Strict quality control and thorough testingOffered at a reasonable price
    $41.34
  • Blue Sea Systems® - UL-489 Circuit Breaker
    Blue Sea Systems®UL-489 Circuit Breaker (7466)
    0
    # mpn4947149105
    UL-489 Circuit Breaker (7466) by Blue Sea Systems®. Raised Rocker. Amperage: 30A. Interrupt Capacity: 5000A. Terminal Type: 1/4"-20 Stud Tin-Plated Brass. Suitable for use when UL-489 specifications are required (Navy, Army, or Coast...
    Strict quality control and thorough testingOffered at a reasonable price
    $61.40
  • Blue Sea Systems® - UL-489 Circuit Breaker
    Blue Sea Systems®UL-489 Circuit Breaker (7441)
    0
    # mpn4947149099
    UL-489 Circuit Breaker (7441) by Blue Sea Systems®. Flat Rocker. Amperage: 10A. Interrupt Capacity: 10000A. Terminal Type: #10-32 Screw Tin-Plated Brass. Suitable for use when UL-489 specifications are required (Navy, Army, or Coast...
    Strict quality control and thorough testingOffered at a reasonable price
    $41.34
  • Blue Sea Systems® - UL-489 Circuit Breaker
    Blue Sea Systems®UL-489 Circuit Breaker (7465)
    0
    # mpn4947148577
    UL-489 Circuit Breaker (7465) by Blue Sea Systems®. Flat Rocker. Amperage: 30A. Interrupt Capacity: 5000A. Terminal Type: 1/4"-20 Stud Tin-Plated Brass. Suitable for use when UL-489 specifications are required (Navy, Army, or Coast...
    Strict quality control and thorough testingOffered at a reasonable price
    $54.52
  • Blue Sea Systems® - UL-489 Circuit Breaker
    Blue Sea Systems®UL-489 Circuit Breaker (7446)
    0
    # mpn4947148535
    UL-489 Circuit Breaker (7446) by Blue Sea Systems®. Flat Rocker. Amperage: 100A. Interrupt Capacity: 10000A. Terminal Type: 1/4"-20 Stud Tin-Plated Brass. Suitable for use when UL-489 specifications are required (Navy, Army, or Coast...
    Strict quality control and thorough testingOffered at a reasonable price
    $41.34
  • Ancor® - 20 A AC/DC Single Pole Circuit Breaker
    Ancor®20 A AC/DC Single Pole Circuit Breaker (551720)
    0
    # mpn4966251277
    20 A AC/DC Single Pole Circuit Breaker by Ancor®. 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, this product by Sierra will last a...
    High quality at an affordable priceExpertly made from premium materials
    $24.30
  • Ancor® - 40 A AC/DC Single Pole Magnetic Circuit Breaker with White Toggle
    Ancor®40 A AC/DC Single Pole Magnetic Circuit Breaker with White Toggle (551740)
    0
    # mpn1590362295
    40 A AC/DC Single Pole Magnetic Circuit Breaker with White Toggle (551740) by Ancor®. Tested and certified in North America and Europe, world circuit breakers meet the needs of worldwide markets and are designed for applications that...
    Provides over 10,000 switching cyclesWeather resistant construction passes 100 hour salt spray tests
    $11.72
  • Ancor® - 5 A AC/DC Single Pole Magnetic Circuit Breaker with White Toggle
    Ancor®5 A AC/DC Single Pole Magnetic Circuit Breaker with White Toggle (551705)
    0
    # mpn4508153466
    5 A AC/DC Single Pole Magnetic Circuit Breaker with White Toggle (551705) by Ancor®. Tested and certified in North America and Europe, world circuit breakers meet the needs of worldwide markets and are designed for applications that...
    Provides over 10,000 switching cyclesWeather resistant construction passes 100 hour salt spray tests
    $11.72
  • Ancor® - 50 A AC/DC Single Pole Magnetic Circuit Breaker with Black Toggle
    Ancor®50 A AC/DC Single Pole Magnetic Circuit Breaker with Black Toggle (551550)
    0
    # mpn4508153860
    50 A AC/DC Single Pole Magnetic Circuit Breaker with Black Toggle by Ancor®. Tested and certified in North America and Europe, world circuit breakers meet the needs of worldwide markets and are designed for applications that require...
    Provides over 10,000 switching cyclesWeather resistant construction passes 100 hour salt spray tests
    $11.65
  • Ancor® - 50 A AC/DC Single Pole Magnetic Circuit Breaker with White Toggle
    Ancor®50 A AC/DC Single Pole Magnetic Circuit Breaker with White Toggle (551750)
    0
    # mpn1590362305
    50 A AC/DC Single Pole Magnetic Circuit Breaker with White Toggle (551750) by Ancor®. Tested and certified in North America and Europe, world circuit breakers meet the needs of worldwide markets and are designed for applications that...
    Provides over 10,000 switching cyclesWeather resistant construction passes 100 hour salt spray tests
    $11.72
  • Ancor® - Electrical Circuit Breaker Line to Line Jumper
    Ancor®Electrical Circuit Breaker Line to Line Jumper (553021)
    0
    # mpn4966251276
    Electrical Circuit Breaker Line to Line Jumper by Ancor®. 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, this product by Sierra will...
    High quality at an affordable priceExpertly made from premium materials
    $4.86
  • BEP® - 1 x 50 A & 2 x 25 A Circuit Breaker Module
    BEP®1 x 50 A & 2 x 25 A Circuit Breaker Module (707)
    0
    # mpn4712255097
    1 x 50 A & 2 x 25 A Circuit Breaker Module by BEP®. Provides 3 CBs ideal for medium duty loads, like waste treatment systems and electric toilets. Designed to separate these loadings from the main DC panel, avoiding voltage spikes....
    Expertly crafted from premium materialsDesigned to match rigorous quality standards
    $121.94
  • BEP® - 100 A Heavy Duty Contour Circuit Breaker
    BEP®100 A Heavy Duty Contour Circuit Breaker (705-100A)
    0
    # mpn4712255079
    100 A Heavy Duty Contour Circuit Breaker by BEP®. Allows switchable protection for heavy-duty circuits like Windlasses or Davit winches using Busman Heavy-duty thermal circuit breakers (120). Modular sizing with Contour Lock housing...
    Expertly crafted from premium materialsDesigned to match rigorous quality standards
    $107.20
  • BEP® - 110 V AC Main Circuit Breaker Panels
    BEP®110 V AC Main Circuit Breaker Panels (900-ACM6W-110V)
    0
    # mpn4712255101
    110 V AC Main Circuit Breaker Panels by BEP®. 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 deliver...
    Ideal for AC shore power installations and on board inverter installationsFor standard twin input systems, eg: one shore power and one genset input
    $326.95
  • BEP® - 110 V AC Main Circuit Breaker Panels
    BEP®110 V AC Main Circuit Breaker Panels (900-ACCH-110V)
    0
    # mpn4712255100
    110 V AC Main Circuit Breaker Panels by BEP®. 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 deliver...
    Ideal for AC shore power installations and on board inverter installationsFor standard twin input systems, eg: one shore power and one genset input
    $212.60
  • BEP® - 135 A Heavy Duty Contour Circuit Breaker
    BEP®135 A Heavy Duty Contour Circuit Breaker (705-135A)
    0
    # mpn4712255080
    135 A Heavy Duty Contour Circuit Breaker by BEP®. Allows switchable protection for heavy-duty circuits like Windlasses or Davit winches using Busman Heavy-duty thermal circuit breakers (120). Modular sizing with Contour Lock housing...
    Expertly crafted from premium materialsDesigned to match rigorous quality standards
    $107.20
  • BEP® - 150 A Heavy Duty Contour Circuit Breaker
    BEP®150 A Heavy Duty Contour Circuit Breaker (705-150A)
    0
    # mpn4712255096
    150 A Heavy Duty Contour Circuit Breaker by BEP®. Allows switchable protection for heavy-duty circuits like Windlasses or Davit winches using Busman Heavy-duty thermal circuit breakers (120). Modular sizing with Contour Lock housing...
    Expertly crafted from premium materialsDesigned to match rigorous quality standards
    $107.20
  • BEP® - 50 A Heavy Duty Contour Circuit Breaker
    BEP®50 A Heavy Duty Contour Circuit Breaker (705-50A)
    0
    # mpn4712255081
    50 A Heavy Duty Contour Circuit Breaker by BEP®. Allows switchable protection for heavy-duty circuits like Windlasses or Davit winches using Busman Heavy-duty thermal circuit breakers (120). Modular sizing with Contour Lock housing...
    Expertly crafted from premium materialsDesigned to match rigorous quality standards
    $107.20
  • BEP® - 80 A Heavy Duty Contour Circuit Breaker
    BEP®80 A Heavy Duty Contour Circuit Breaker (705-80A)
    0
    # mpn4712255087
    80 A Heavy Duty Contour Circuit Breaker by BEP®. Allows switchable protection for heavy-duty circuits like Windlasses or Davit winches using Busman Heavy-duty thermal circuit breakers (120). Modular sizing with Contour Lock housing...
    Expertly crafted from premium materialsDesigned to match rigorous quality standards
    $107.20
  • BEP® - Contour Connect Circuit Breaker Panel Mount
    BEP®Contour Connect Circuit Breaker Panel Mount (CC-HDBM)
    0
    # mpn4712255089
    Contour Connect Circuit Breaker Panel Mount by BEP®. The CC-HDBM module must be ordered separately if ordering BEP 184 & 185 series circuit breakers. Mounting hardware for CB and panel attachment is supplied with module.
    High temperature, fiber reinforced plastic base provides strength and chemical resistanceClear polycarbonate cover
    $20.00
  • Install Bay® - 10 A Automatic Reset Circuit Breaker
    Install Bay®10 A Automatic Reset Circuit Breaker (CB50AR)
    0
    # mpn693243696
    10 A Automatic Reset Circuit Breaker by Install Bay®. 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...
    Auto ResetUSA Cooper Bussmann
    $9.72
  • Lewmar® - 35 A Thermal Circuit Breaker
    Lewmar®35 A Thermal Circuit Breaker (68000604)
    0
    # mpn735711907
    35 A Thermal Circuit Breaker by Lewmar®. To be installed with Lewmar Electric winches and windlasses. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great quality at an...
    Carefully crafted to suit your specific boating needsEngineered to high standards
    $120.41
  • Littelfuse® - Cole Hersee™ 30 A 12 V Box Style Circuit Breaker
    Littelfuse®Cole Hersee™ 30 A 12 V Box Style Circuit Breaker (30055-30-BP)
    0
    # mpn4759070832
    Cole Hersee™ 30 A 12 V Box Style Circuit Breaker by Littelfuse®. Steel box type is approximately and comes with integral brackets (to be directly affixed with screws or bolts) or without (needs a mounting bracket). Breakers have 10-32...
    Steel or plastic housingComes with integral brackets (to be directly affixed with screws or bolts) or without (needs a mounting bracket)
    $13.50
  • Littelfuse® - Cole Hersee™ 40 A 12 V Box Style Circuit Breaker
    Littelfuse®Cole Hersee™ 40 A 12 V Box Style Circuit Breaker (30055-40-BP)
    0
    # mpn4759070835
    Cole Hersee™ 40 A 12 V Box Style Circuit Breaker by Littelfuse®. Steel box type is approximately and comes with integral brackets (to be directly affixed with screws or bolts) or without (needs a mounting bracket). Breakers have 10-32...
    Steel or plastic housingComes with integral brackets (to be directly affixed with screws or bolts) or without (needs a mounting bracket)
    $12.94
  • Mar-Lan® - 40 A Inline Circuit Breaker
    Mar-Lan®40 A Inline Circuit Breaker (2201-40C)
    0
    # mpn1589893073
    40 A Inline Circuit Breaker by Mar-Lan®. 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 deliver great...
    Expertly crafted from premium materialsDesigned to match rigorous quality standards
    $15.00
  • Mar-Lan® - Battery Post Red Mounting Bracket for 2201 Circuit Breakers
    Mar-Lan®Battery Post Red Mounting Bracket for 2201 Circuit Breakers (2202BP-RED)
    0
    # mpn1589893072
    Battery Post Red Mounting Bracket for 2201 Circuit Breakers by Mar-Lan®. 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...
    Expertly crafted from premium materialsDesigned to match rigorous quality standards
    $10.91
  • Minn Kota® - 60 A MKR-19 Waterproof Circuit Breaker
    Minn Kota®60 A MKR-19 Waterproof Circuit Breaker (1865106)
    0
    # mpn4429858634
    60 A MKR-19 Waterproof Circuit Breaker (1865106) by Minn Kota®. Protects boat trolling motor wiring from electrical damage. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...
    Manual resetFully waterproof
    $39.73
  • Minn Kota® - 60 A MKR-19 Waterproof Circuit Breaker, Bulk
    Minn Kota®60 A MKR-19 Waterproof Circuit Breaker, Bulk (1865103)
    0
    # mpn4801540705
    60 A MKR-19 Waterproof Circuit Breaker, Bulk (1865103) by Minn Kota®. Protects boat trolling motor wiring from electrical damage. This product is made of high-quality materials to serve you for years to come. Designed using...
    Manual resetFully waterproof
    $40.84




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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