Collection: Electrical - Busbars, Connectors & Insulators

Build cleaner connections and dependable onboard power distribution.

Explore marine busbars, connectors and insulators designed for organizing electrical connections and distributing power throughout your vessel. From battery installations to DC electrical systems, the right connection components help create clean, accessible and dependable onboard electrical installations.

Shop marine busbars, power distribution blocks, terminal blocks, battery connectors, electrical connectors, insulating covers, standoffs and related installation accessories for sailboats, powerboats, yachts and other marine applications.

Whether you're upgrading a battery bank, adding electrical equipment, reorganizing existing wiring or building a new power-distribution system, Roam & Harbor makes it easier to find the components needed for a professional marine electrical installation.

Connect the system. Distribute the power. Keep exploring.

155 products

  • Blue Sea Systems

    Blue Sea 4002 Cable Cap Dual Entry - Black [4002]

    Regular price $11.99 USD
    Sale price $11.99 USD Regular price $0.00 USD

    Dual Entry PowerPost Cable Insulator, BlackPart# 4002 Protects against accidental short circuits Top lid allows for easy access to connection point Cable Size: up to 2/0...

  • Blue Sea Systems

    Blue Sea 4003 Cable Cap Dual Entry - Red [4003]

    Regular price $11.99 USD
    Sale price $11.99 USD Regular price $0.00 USD

    Dual Entry PowerPost Cable Insulator, RedPart# 4003 Protects against accidental short circuits Top lid allows for easy access to connection point Cable Size: up to 2/0...

  • Save $9.00 USD
    Blue Sea Systems

    Blue Sea 2126 Maxibus 6 x 516-18 Stud Common [2126]

    Regular price $96.99 USD
    Sale price $96.99 USD Regular price $105.99 USD

    6 x 5⁄16- 18 Stud TerminalPart# 2126 SpecificationsContinuous Amperage 250 Amperes AC/DCVoltage Rating 300 Volts AC Maximum / 48 Volts DC MaximumBus Material Tin-Plated Copper CDA...

  • Save $3.00 USD
    Blue Sea Systems

    Blue Sea 2718 Maxibus Cover f/2105 & 2106 [2718]

    Regular price $41.99 USD
    Sale price $41.99 USD Regular price $44.99 USD

    Maxibus CoverPart# 2718Cover for 2105 & 2106WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to...

  • Save $1.00 USD
    Blue Sea Systems

    Blue Sea 2151 Terminal Fuse Block - 3/8" Mounting Hole - 2 Terminal Studs [2151]

    Regular price $54.99 USD
    Sale price $54.99 USD Regular price $55.99 USD

    2151Features: New isolated stud design uses standard 5/16" hardware and permits stacking of terminals Compact, high-amp fuse-Appropriate for DC Main, inverter, windlass, and bow thruster circuit...

  • Blue Sea Systems

    Blue Sea 2019 PowerBar Common BusBar - Dual 3/8" x 16 [2019]

    Regular price $30.99 USD
    Sale price $30.99 USD Regular price $0.00 USD

    PowerBar Common BusBarTerminal Studs: 2x3/8"-16Provides compact high-ampere busing with 3/8" terminal studsWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to...

  • Blue Sea Systems

    Blue Sea 2016 Dual PowerPost Cable Connectors - 2 X 5/16" [2016]

    Regular price $28.99 USD
    Sale price $28.99 USD Regular price $0.00 USD

    Dual PowerPost Connectors Designed for connecting high amp conductors Includes one black and one red insulator WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate...

  • Blue Sea Systems

    Blue Sea 2017 Dual PowerPost Cable Connectors - 2 x 3/8" [2017]

    Regular price $28.99 USD
    Sale price $28.99 USD Regular price $0.00 USD

    Dual PowerPost Connectors Designed for connecting high amp conductors Includes one black and one red insulator WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate...

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