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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 ST Blade Fuse Blocks

Blue Sea ST Blade Fuse Blocks

Key Features
  • Accepts ATO or ATC fast acting fuses

  • Corrosion-resistant tin-plated copper buses, clips

  • Can be used for switched and/or 24-hour circuits

  • Maximum voltage 32V DC

  • Some models have an insulated cover

8 models to choose from
$29.99 - $49.99
Blue Sea Systems PowerBar 1000A Common Busbar

New! Blue Sea Systems PowerBar 1000A Common Busbar

Key Features
  • 1000-amp busbar

  • Connect a wide range of cables and wires

  • Tin-plated copper for maximum conductivity

  • Stepped design with staggered studs

  • Snap-on insulating cover included

3 models to choose from
$164.99 - $204.99
Blue Sea Systems MaxiBus 250A Busbar

New! Blue Sea Systems MaxiBus 250A Busbar

Key Features
  • Consolidate multiple wires or circuits

  • Excellent electrical contact

  • 250A continuous rating

  • Tin-plated copper for maximum conductivity

  • Raised bus for easy access

3 models to choose from
$29.99 - $39.99
Blue Sea Systems Push-Button Reset-Only Screw Terminal Circuit ..

New! Blue Sea Systems Push-Button Reset-Only Screw Terminal Circuit Breaker

Key Features
  • Compact design for high-density circuit protection

  • Push-to-reset operation

  • "Trip-free" design

  • Ignition protected

  • Quick-connect screw terminal style

9 models to choose from
$5.99
Blue Sea Systems Medium-Duty Push-Button Reset-Only Circuit ..

New! Blue Sea Systems Medium-Duty Push-Button Reset-Only Circuit Breaker

Key Features
  • Ignition protection in a compact design

  • Weatherproof

  • Push-to-reset operation

  • "Trip-free" design

  • Captive star lock washers

4 models to choose from
$34.99
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 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 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

$19.99
Sierra 20-Gang Bus Bar, Sierra Part #FS40760

Sierra 20-Gang Bus Bar, Sierra Part #FS40760

Key Features
  • Sierra Part #FS40760

  • 20-gang bus bar

$25.99
$21.96
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 PowerBar Dual Busbar, Two 3/8" Studs

New! Blue Sea Systems PowerBar Dual Busbar, Two 3/8" Studs

Key Features
  • Compact, high-ampere busing

  • 3/8" terminal studs

  • 200A max

  • Tin-plated copper bus

$16.99
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, 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 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
Blue Sea Systems MiniBus Busbar Cover, Part No. 2713

New! Blue Sea Systems MiniBus Busbar Cover, Part No. 2713

Key Features
  • MiniBus busbar cover

  • For use with Blue Sea 2304 and 2305

$2.99
Blue Sea Systems MaxiBus Insulating Cover, part no. 2718

New! Blue Sea Systems MaxiBus Insulating Cover, part no. 2718

Key Features
  • Superior insulating cover with breakouts

  • Meets ABYC insulation requirements

  • Works with all PowerPost Plus

  • Works with MaxiBus 2105 and 2126

$29.99
Blue Sea Systems MaxiBus Insulating Cover, part no. 2719

New! Blue Sea Systems MaxiBus Insulating Cover, part no. 2719

Key Features
  • Superior insulating cover with breakouts

  • Meets ABYC insulation requirements

  • Works with all Dual PowerPost

  • Works with MaxiBus 2127 and 2128

$24.99
Blue Sea Systems Circuit Breaker Enclosure

New! Blue Sea Systems Circuit Breaker Enclosure

Key Features
  • Surface mounting option

  • For mounting single and double pole breakers

  • Wire glands and fasteners included

  • 4.92"H x 3.95"W x 4.07"D

$34.99
Blue Sea Systems A-Series Circuit Breaker Toggle Guard

New! Blue Sea Systems A-Series Circuit Breaker Toggle Guard

Key Features
  • Prevents accidentally switching breakers ON or OFF

  • Fits A-Series single pole circuit breakers

  • Fits all panel switches

  • Mounts in the circuit breaker screw hole

  • Includes 2 mounting screws

$3.99
Blue Sea Systems 360 Panel Adapter For Toggle Circuit Breaker

New! Blue Sea Systems 360 Panel Adapter For Toggle Circuit ...

Key Features
  • Adapts Toggle Breakers and Switches

  • For use on Rocker and 360 Panels

$11.99
Blue Sea Systems Panel Mount AGC/MDL Fuse Holder Replacement Cap

New! Blue Sea Systems Panel Mount AGC/MDL Fuse Holder Replacement...

Key Features
  • Replaces cap for Blue Sea 5021 (item #85174)

$2.99
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 ST Blade Split Bus Fuse Block With Ground

New! Blue Sea Systems ST Blade Split Bus Fuse Block With Ground

Key Features
  • Two isolated groups of 6 ATO/ATC circuits

  • Great for a mix of switched and 24-hr. circuits

  • Screw terminals accept ring terminals

  • Clear insulating cover w/label recesses

  • Tin-plated copper buses and fuse clips

$69.99

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