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Electrical - Fuse Blocks & Fuses

Marine fuse blocks and fuses are essential components designed to protect your vessel's electrical systems from overloads, short circuits, and potential equipment damage. Engineered for demanding freshwater and saltwater environments, today's marine fuse solutions provide reliable circuit protection while helping organize and safely distribute power throughout your boat. From blade fuse blocks, inline fuse holders, ANL and MEGA fuse blocks, terminal fuses, and high-amperage protection solutions to replacement fuses and accessories, these products support a wide range of marine electrical applications including batteries, inverters, pumps, lighting, and onboard electronics. Quality fuse blocks help keep wiring organized while providing dependable protection for critical electrical components. Whether you're upgrading your electrical system, completing a new installation, or replacing worn components, the right fuse block and fuse combination improves safety, reliability, and performance on the water. Featuring premium products from trusted marine manufacturers, our Electrical – Fuse Blocks & Fuses collection delivers the protection serious boaters expect. Browse our selection today and let our knowledgeable team help you choose the ideal electrical protection solution for your vessel.

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  • Victron MEGA Fuse 200A/80V (Package of 5 Pieces) [CIP138200020]
    Victron Energy

    Victron MEGA Fuse 200A/80V (Package of 5 Pieces) [CIP138200020]

    $65.65
    $77.24
    $65.65
    MEGA Fuse 200A/80V (Package of 5 Pieces)Victron Energy supplies a range of fuse holders and fuses to suit a wide range of installations, and the MEGA fuses are frequently used in Victron Energy DC distribution systems. This particular pack of ceramic Victron MEGA fuses...
    $65.65
    $77.24
    $65.65
  • Blue Sea 5024 ST-Blade Battery Terminal Mount Fuse Block Kit [5024]Blue Sea 5024 ST-Blade Battery Terminal Mount Fuse Block Kit [5024]
    Blue Sea Systems

    Blue Sea 5024 ST-Blade Battery Terminal Mount Fuse Block Kit [5024]

    $54.75
    $77.22
    $54.75
    ST-Blade Battery Terminal Mount Fuse Block KitFeatures: Easy to install 4 ATO/ATC fused circuits Mounts on the battery terminal stud Screw terminals for securing wires Eight nylon ring terminals included Insulating cover included Kit Includes: 1 - 5023 ST-Blade Battery Terminal Mount Fuse Block...
    $54.75
    $77.22
    $54.75
  • Blue Sea 5181 80A Fuse Terminal [5181]
    Blue Sea Systems

    Blue Sea 5181 80A Fuse Terminal [5181]

    $23.86
    $32.29
    $23.86
    Terminal FuseColor: LimeAmperage: 80A Interrupt Rating satisfies ABYC requirements for DC Main circuit protection on large battery banks Ignition protected-safe for installation aboard gasoline powered boats Clear window-visual indication of blown condition Must be used with terminal fuse block WARNING: This product can expose...
    $23.86
    $32.29
    $23.86
  • Blue Sea 5007100 Class T Fuse Block w/Insulating Cover - 110 to 200A [5007100]
    Blue Sea Systems

    Blue Sea 5007100 Class T Fuse Block w/Insulating Cover - 110 to 200A [5007100]

    $102.50
    $140.42
    $102.50
    Class T Fuse Block with Insulating Cover - 110 to 200AAllows 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...
    $102.50
    $140.42
    $102.50
  • Blue Sea 5187 200A Fuse Terminal [5187]
    Blue Sea Systems

    Blue Sea 5187 200A Fuse Terminal [5187]

    $23.86
    $32.29
    $23.86
    Terminal FuseColor: BlueAmperage: 200A Interrupt Rating satisfies ABYC requirements for DC Main circuit protection on large battery banks Ignition protected-safe for installation aboard gasoline powered boats Clear window-visual indication of blown condition Must be used with terminal fuse block WARNING: This product can expose...
    $23.86
    $32.29
    $23.86
  • Blue Sea 5032 ST-Blade Split Bus Fuse Block [5032]
    Blue Sea Systems

    Blue Sea 5032 ST-Blade Split Bus Fuse Block [5032]

    $94.07
    $131.99
    $94.07
    ST-Blade Split Bus Fuse BlockFeatures: Provides two isolated groups of six ATO/ATC circuits For use with either two isolated batteries or with a single battery providing a mix of 24 hour and switched circuits Screw terminals for securing wires accept ring terminals One-piece stainless...
    $94.07
    $131.99
    $94.07
  • Blue Sea 5064 In-Line Fuse Holder f/ATO & ATC Fuses [5064]
    Blue Sea Systems

    Blue Sea 5064 In-Line Fuse Holder f/ATO & ATC Fuses [5064]

    $9.82
    $11.92
    $9.82
    5064ATO/ATC In-Line Fuse Holder Supplied with 12 AWG pigtails 30A Maximum fuse amperage WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information...
    $9.82
    $11.92
    $9.82
  • Blue Sea 5065 Waterproof In-Line Fuse Holder ATO/ATC [5065]
    Blue Sea Systems

    Blue Sea 5065 Waterproof In-Line Fuse Holder ATO/ATC [5065]

    $12.62
    $16.84
    $12.62
    5065ATO/ATC Waterproof In-Line Fuse Holder supplied with 12 AWG pigtails 30A Maximum fuse amperage WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more...
    $12.62
    $16.84
    $12.62
  • Blue Sea 5178 60A Fuse Terminal [5178]
    Blue Sea Systems

    Blue Sea 5178 60A Fuse Terminal [5178]

    $23.86
    $32.29
    $23.86
    Terminal FuseColor: GoldAmperage: 60A Interrupt Rating satisfies ABYC requirements for DC Main circuit protection on large battery banks Ignition protected-safe for installation aboard gasoline powered boats Clear window-visual indication of blown condition Must be used with terminal fuse block WARNING: This product can expose...
    $23.86
    $32.29
    $23.86
  • Blue Sea 5180 75A Fuse Terminal [5180]
    Blue Sea Systems

    Blue Sea 5180 75A Fuse Terminal [5180]

    $23.86
    $32.29
    $23.86
    Terminal FuseColor: BrownAmperage: 75A Interrupt Rating satisfies ABYC requirements for DC Main circuit protection on large battery banks Ignition protected-safe for installation aboard gasoline powered boats Clear window-visual indication of blown condition Must be used with terminal fuse block WARNING: This product can expose...
    $23.86
    $32.29
    $23.86
  • Blue Sea 5182 90A Fuse Terminal [5182]
    Blue Sea Systems

    Blue Sea 5182 90A Fuse Terminal [5182]

    $23.86
    $32.29
    $23.86
    Terminal FuseColor: PurpleAmperage: 90A Interrupt Rating satisfies ABYC requirements for DC Main circuit protection on large battery banks Ignition protected-safe for installation aboard gasoline powered boats Clear window-visual indication of blown condition Must be used with terminal fuse block WARNING: This product can expose...
    $23.86
    $32.29
    $23.86
  • Blue Sea 5137 500A ANL Fuse [5137]Blue Sea 5137 500A ANL Fuse [5137]
    Blue Sea Systems

    Blue Sea 5137 500A ANL Fuse [5137]

    $51.95
    $70.20
    $51.95
    5137ANL Fuse500A Ignition protected (conforming to SAE J1171)- safe for installation aboard gasoline powered boats Silver-plated connector blades for corrosion resistance Visible indication of blown condition 6,000 Ampere Interrupt Capacity (AIC) satisfies ABYC requirements for main DC circuit protection on large battery banks For...
    $51.95
    $70.20
    $51.95
  • Blue Sea 5236 2A ATO/ATC Fuse [5236]
    Blue Sea Systems

    Blue Sea 5236 2A ATO/ATC Fuse [5236]

    $4.20
    $5.60
    $4.20
    5236ATO/ATC Fuse2A Fast-acting type fuse ideal for electronic devices Standard circuit protection device for automobiles and trucks Tin-plated connector blades for corrosion resistance Visible indication of blown condition Sold in packages of 2 WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp)...
    $4.20
    $5.60
    $4.20
  • Blue Sea 7721 Mega/AMG Safety Fuse Block [7721]
    Blue Sea Systems

    Blue Sea 7721 Mega/AMG Safety Fuse Block [7721]

    $53.35
    $71.61
    $53.35
    MEGA or AMG Fuse Safety Block Ignition protected for installation aboard gasoline or diesel powered boats Sealed cover protects fuses from the harsh marine environment Insulating cover satisfies ABYC/USCG insulation requirements Cover breakouts allow wire access in any direction 300A maximum with 2/0 cable...
    $53.35
    $71.61
    $53.35
  • Egis MRBF Terminal Fuse - 200 Amp [3603-200]
    Egis Mobile Electric

    Egis MRBF Terminal Fuse - 200 Amp [3603-200]

    $11.22
    $28.09
    $11.22
    MRBF Terminal Fuse - 200 Amp Transparent easy visual of fuse status Ignition-protected SAE/J1171-ISO8846 High interrupt rating satisfies ABYC requirements for DC main circuit protection on larger battery banks Color-coded for easy ID of amperage rating Features Protects Electrical Circuits from short circuit events...
    $11.22
    $28.09
    $11.22
  • Victron Replacement Shunt f/BMV Monitors - *PCB is NOT Included* [SHU500050100]Victron Replacement Shunt f/BMV Monitors - *PCB is NOT Included* [SHU500050100]
    Victron Energy

    Victron Replacement Shunt f/BMV Monitors - *PCB is NOT Included* [SHU500050100]

    $31.04
    $36.51
    $31.04
    Replacement Shunt for BMV Monitors - *PCB is NOT Included*Replacement 500A/50MV shunt for BMV Monitors*BMV PCB is NOT included and must be purchased separately*Warranty InfoPlease contact your dealer for any returns, repairs or support issues related to this product. Quick Guide (pdf)
    $31.04
    $36.51
    $31.04
  • Egis Class T Fuse Block 225-400 A - Sealed [3912]
    Egis Mobile Electric

    Egis Class T Fuse Block 225-400 A - Sealed [3912]

    $57.56
    $76.39
    $57.56
    Class T Fuse Block 225-400 A - SealedApplications/Problems This Solves: Separate Stud Connections for Cable Mounting allow heavier gauge cables and their terminals to feed in and out of the fuse, which would otherwise land on the fuse tab itself. Ignition Protected to support...
    $57.56
    $76.39
    $57.56
  • Blue Sea 5101 MEGA/AMG Fuse - 100AMP [5101]
    Blue Sea Systems

    Blue Sea 5101 MEGA/AMG Fuse - 100AMP [5101]

    $14.03
    $18.24
    $14.03
    5101 MEGA®/AMG® Fuse - 100AMPFeatures: Most economical fuse for 100-300 Ampere circuit protection For use with Blue Sea Systems' MEGA®/AMG® Fuse Block WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer,...
    $14.03
    $18.24
    $14.03
  • Blue Sea 5116 200A Class T Fuse [5116]
    Blue Sea Systems

    Blue Sea 5116 200A Class T Fuse [5116]

    $85.65
    $116.54
    $85.65
    5116 200A Class T FuseFeatures: Extremely fast short-circuit response 20,000 Ampere Interrupt Capacity (AIC) UL listed to standard 248-15 DC Tested to UL standard 198L WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California...
    $85.65
    $116.54
    $85.65
  • Balmar Communication Cable SG2320 (N2K) SG240 (RB-C) M12 - 12" [SG2-0405]
    Balmar

    Balmar Communication Cable SG2320 (N2K) SG240 (RB-C) M12 - 12" [SG2-0405]

    $64.58
    $65.15
    $64.58
    Communication Cable SG2320 (N2K) & SG240 (RB-C) M12 - 12"Com Cable connecting to an RV-C CANbus Network via an M12 DeviceNet Connector.This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.
    $64.58
    $65.15
    $64.58