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Boating & Marine > Electrical > Switches & Panels > Fuse Blocks, Circuit Breakers & Busbars >

fuse block for boats

  Fuse blocks, Circuit Breakers & Busbars - wire your boat for power with electrical wiring, 12 volt batteries, fuses, fuse blocks, and switch panels from Blue Sea Systems and SeaSense.

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Blue Sea Water-Resistant 3AG In-Line Fuse Holder

Blue Sea Water-Resistant 3AG In-Line Fuse Holder

Key Features
  • For use with AGC or MDL glass fuses

  • Withstands marine environment

  • Maximum voltage: 32V DC

  • Maximum Amperage: 20 Amps

$3.99
Blue Sea Systems Replacement Insulating Boot for Short Stop Circuit Breaker

New! Blue Sea Systems Replacement Insulating Boot for Short Stop ...

Key Features
  • IP64 water-resistant boot

  • Protects against dust and splashing water

  • Included with Short Stop Circuit Breakers

$0.99
Blue Sea Systems In-Line ATO/ATC Fuse Holder, 30 Amps

New! Blue Sea Systems In-Line ATO/ATC Fuse Holder, 30 Amps

Key Features
  • For use with ATO or ATC fuses

  • Supplied with 12 AWG pigtails

  • 30A maximum fuse amperage

  • Fuse not included

$5.19
$3.99
Blue Sea Systems ST Blade Battery Terminal Mount Fuse Block Kit

New! Blue Sea Systems ST Blade Battery Terminal Mount Fuse Block ...

Key Features
  • Easily add 4 fused circuits to battery terminal

  • Includes 4 ATO/ATC fused circuits

  • 4-circuit negative busbar

  • Four 16-14 AWG and four 12-10 AWG ring terminals

  • Includes 15A fuse and insulating cover

$45.49
$34.99
Blue Sea ST Blade Compact 4-Circuit Fuse Block

Blue Sea ST Blade Compact 4-Circuit Fuse Block

Key Features
  • Surface-mount circuit protection for fuses

  • Single side design for easy wire entry

  • Insulated cover meets ABYC/USCG requirements

  • Fuses sold separately

$29.99
Blue Sea Systems ST Blade Fuse Block, 6 Independent Circuits with Cover

New! Blue Sea Systems ST Blade Fuse Block, 6 Independent Circuits...

Key Features
  • Corrosion-resistant tin-plated copper fuse clips

  • Reduced heat and improved efficiency

  • Clear insulating cover with label recesses

  • Accepts ring or snap fork type terminals

  • Includes 2 terminal block jumpers

$39.99
Sierra Bus Bar, Sierra Part #FS46100

Sierra Bus Bar, Sierra Part #FS46100

Key Features
  • Sierra Part #FS46100

  • Bus bar

$14.99
$12.99
Sierra Circuit Breaker, Sierra Part #CB60000

Sierra Circuit Breaker, Sierra Part #CB60000

Key Features
  • Sierra Part #CB60000

  • Circuit breaker

$29.99
$24.96
Blue Sea Systems Heavy-Duty In-Line AGC/MDL Fuse Holder, 30 Amp

New! Blue Sea Systems Heavy-Duty In-Line AGC/MDL Fuse Holder, 30 ...

Key Features
  • Accepts 12 - 18 AWG wire

  • 30A maximum fuse amperage

  • Fuse not included

$5.19
$3.99
Sierra Ground Bus Bar, Sierra Part #FS40730

Sierra Ground Bus Bar, Sierra Part #FS40730

Key Features
  • Sierra Part #FS40730

  • Ground bus bar

$7.49
Sierra Six Gang ATO/ATC Fuse Block, Sierra Part #FS40420

Sierra Six Gang ATO/ATC Fuse Block, Sierra Part #FS40420

Key Features
  • Sierra Part #FS40420

  • Tinned copper contacts

  • Fuse not included

  • Use with ATO or ATC fuses

$24.99
$19.99
Blue Sea Systems Common 150A Busbar, 10 Gang

New! Blue Sea Systems Common 150A Busbar, 10 Gang

Key Features
  • Industry standard for positive distribution

  • Standard for collection of AC ground circuits

  • 150 Amp DC continuous rating

  • 10 terminal screws, 2 studs

$16.99
Blue Sea Systems ST Blade Battery Terminal Mount Fuse Block

New! Blue Sea Systems ST Blade Battery Terminal Mount Fuse Block

Key Features
  • Easily add 4 fused circuits to battery terminal

  • Includes 4 ATO/ATC fused circuits

  • Screw terminals for securing wires

  • Ignition protected

  • Includes 15A fuse and insulating cover

$24.99
Blue Sea Systems Waterproof In-Line ATO/ATC Fuse Holder, 30 Amps

New! Blue Sea Systems Waterproof In-Line ATO/ATC Fuse Holder, 30 ...

Key Features
  • For use with ATO or ATC fuses

  • Supplied with 12 AWG pigtails

  • 30A maximum fuse amperage

  • Fuse not included

$8.99
Sierra Fuse Holder, Sierra Part #FS22080

Sierra Fuse Holder, Sierra Part #FS22080

Key Features
  • Sierra Part #FS22080

  • Fuse holder

$4.99
Sierra Fuse Kit, Sierra Part #FS79630

Sierra Fuse Kit, Sierra Part #FS79630

Key Features
  • Sierra Part #FS79630

  • Fuse kit

$2.99
Blue Sea Systems Lockout Slide, A-Series

New! Blue Sea Systems Lockout Slide, A-Series

Key Features
  • Allows only 1 double pole breaker at a time

  • Prevents AC power mix from multiple sources

  • Fits A-Series and rocker double pole breakers

  • Requires no panel modification

  • Includes mounting screws

2 models to choose from
$16.99 - $18.99
Blue Sea Systems ST CLB Circuit Breaker Block

New! Blue Sea Systems ST CLB Circuit Breaker Block

Key Features
  • Snap-in-place resettable circuit breakers

  • As easy to install as a fuse

  • Tin-plated copper for maximum conductivity

  • Clear insulating cover w/label recesses

  • Breakouts allow wire access in 2 directions

4 models to choose from
$44.99 - $99.99
Blue Sea Systems Fuse A3T / Class T

New! Blue Sea Systems Fuse A3T / Class T

Key Features
  • Delivers extremely fast short-circuit response

  • 20,000 ampere interrupt capacity

  • Maximum voltage: 160V DC

5 models to choose from
$39.99
Blue Sea Systems AGC Fuses

New! Blue Sea Systems AGC Fuses

Key Features
  • For use with ST glass fuse blocks

  • For use with AGC or MDL fuse holders

  • Maximum voltage: 32V DC

  • Provide a visible indication of blown condition

  • 5 fuses per pack

17 models to choose from
$1.99
Blue Sea Systems easyID ATC Fuses

New! Blue Sea Systems easyID ATC Fuses

Key Features
  • ATC fuses illuminate when blown

  • Use LED technology to show that fuse has blown

  • Easy to spot in fuse panels under dark dashboards

  • Replace non-illuminating ATO or ATC fuses

  • 2 fuses per pack

9 models to choose from
$3.99
Blue Sea Systems 285 Series Circuit Breaker, Panel Mount..

New! Blue Sea Systems 285 Series Circuit Breaker, Panel Mount

Key Features
  • Combines switching and circuit protection

  • Drop-in replacement for 185 Series

  • Visible reset lever shows open condition

  • "Trip Free" cannot be held closed after trip

  • Ignition protected

10 models to choose from
$49.99
Blue Sea Systems Marine-Grade Short Stop Circuit Breaker..

New! Blue Sea Systems Marine-Grade Short Stop Circuit Breaker

Key Features
  • Use a circuit breaker instead of a fuse

  • Push-to-reset operation

  • Corrosion-resistant materials

  • Water-resistant boot

  • Stainless steel nyloc nuts

8 models to choose from
$7.99
Blue Sea Systems 285 Series Circuit Breaker, Surface Mount..

New! Blue Sea Systems 285 Series Circuit Breaker, Surface Mount

Key Features
  • Combines switching and circuit protection

  • Drop-in replacement for 185 Series

  • Visible reset lever shows open condition

  • "Trip Free" cannot be held closed after trip

  • Ignition protected

10 models to choose from
$49.99
Blue Sea Systems COTS Military-Grade A-Series Toggle Circuit ..

New! Blue Sea Systems COTS Military-Grade A-Series Toggle Circuit Breaker, Double Pole

Key Features
  • Industry standard circuit breaker

  • Switching and circuit protection in single device

  • Magnetic hydraulic breaker type

  • "Trip Free" cannot be held ON after trip

  • Meets ABYC standards

8 models to choose from
$74.99
Blue Sea ST Glass Fuse Block

Blue Sea ST Glass Fuse Block

Key Features
  • For use with AGC and MDL fuses

  • Insulating cover meets ABYC/USCG requirements

  • Cover has spare fuse storage

  • Encapsulated phosphor bronze fuse clips

  • Tin-plated copper buses

2 models to choose from
$29.99 - $34.99
Sierra 3-Amp Circuit Breaker, Sierra Part #CB41100

Sierra 3-Amp Circuit Breaker, Sierra Part #CB41100

Key Features
  • Sierra Part #CB41100

  • Circuit breaker

  • 3 amps

$7.99
$5.99
Sierra 5-Amp Circuit Breaker, Sierra Part #CB41200

Sierra 5-Amp Circuit Breaker, Sierra Part #CB41200

Key Features
  • Sierra Part #CB41200

  • Circuit breaker

  • 5 amps

$7.99
$5.99
Blue Sea Systems Dual MRBF Terminal Fuse Block 30 to 300 Amps

New! Blue Sea Systems Dual MRBF Terminal Fuse Block 30 to 300 ...

Key Features
  • Compact for high current protection in tight space

  • Isolated stud design

  • Insulating cap included

  • Accepts 5/16" ring terminals

  • Mounts on 3/8" terminal studs

$29.99
Blue Sea Systems Common 150A Busbar, 4 Studs

New! Blue Sea Systems Common 150A Busbar, 4 Studs

Key Features
  • Industry standard for positive distribution

  • Standard for collection of AC ground circuits

  • 150 Amp DC continuous rating

  • Four 1/4" studs

$19.99
Blue Sea Systems DualBus 100 Busbar Cover, Part No. 2709

New! Blue Sea Systems DualBus 100 Busbar Cover, Part No. 2709

Key Features
  • 5-circuit busbar cover

  • For use with Blue Sea No. 2701 (Overtons 82372)

$11.99
Blue Sea Systems DualBus 100 Busbar Cover, Part No. 2710

New! Blue Sea Systems DualBus 100 Busbar Cover, Part No. 2710

Key Features
  • Busbar cover

  • For use with Blue Sea Busbars and Blocks listed

$14.99

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