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 2201 Black Terminal Feed Through Connector [2201]

    Regular price $31.99 USD
    Sale price $31.99 USD Regular price $0.00 USD

    Terminal Feed Through ConnectorsEliminates chage and provides strain relief when passing high current through hulls, decks and bulkheads.Features: Perfect for passing high current cables through hulls,...

  • Save $31.00 USD
    Blue Sea Systems

    Blue Sea 2107 PowerBar 600AMP Cable Connector - 8 x 3/8" 16 Stud Terminal [2107]

    Regular price $186.99 USD
    Sale price $186.99 USD Regular price $217.99 USD

    2107 PowerBar 600AMP Cable Connector - 8 x 3/8" 16 Stud TerminalSpecifications: Maximum Voltage: 300 V AC/48V DC Number of Terminal Studs: 8 Terminal Type: 3/8"...

  • Save $1.00 USD
    Blue Sea Systems

    Blue Sea 5503 ANL 750 Fuse Block w/ Cover [5503]

    Regular price $67.99 USD
    Sale price $67.99 USD Regular price $68.99 USD

    5503 Cover included Accepts 5/16" (M8) ring terminals For use on systems up to 32 Volts DC Swing out design allows replacement of the fuse without...

  • Save $23.00 USD
    Blue Sea Systems

    Blue Sea 2104 PowerBar 600AMP Cable Connector 4 x 3/8 16 Stud Terminal [2104]

    Regular price $134.99 USD
    Sale price $134.99 USD Regular price $157.99 USD

    2104 PowerBar 600AMP Cable Connector 4 x 3/8 16 Stud TerminalSpecifications: Max Voltage: 300 V AC/48 V DC Number of Terminal Studs: 4 Terminal Type: 3/8"...

  • Bluewater

    Bluewater 12 Position Male Sealed Deutsch Connector Busbar - 5/16" Stud [2314-D-056]

    Regular price $21.20 USD
    Sale price $21.20 USD Regular price $0.00 USD

    12 Position Male Sealed Deutsch Connector Busbar - 5/16" StudThis waterproof busbar is designed for Deutsch-style DT connectors and built to resist moisture, corrosion, and vibration....

  • Save $7.00 USD
    Blue Sea Systems

    Blue Sea 2127 Maxibus 4 x 516-18 Stud Common [2127]

    Regular price $75.99 USD
    Sale price $75.99 USD Regular price $82.99 USD

    4 x 5⁄16- 18 Stud TerminalPart# 2127 SpecificationsContinuous Amperage 250 Amperes AC/DCVoltage Rating 300 Volts AC Maximum / 48 Volts DC MaximumBus Material Tin-Plated Copper CDA...

  • Blue Sea Systems

    Blue Sea 2404 Terminal Black 20AMP - 4 Circuit [2404]

    Regular price $7.99 USD
    Sale price $7.99 USD Regular price $0.00 USD

    2404 Terminal Black 20AMP - 4 CircuitFeatures: Closed back design completely insulates power from the mounting surface Each screw pair is 1 isolated circuit Jumpers allow...

  • Bluewater

    Bluewater 2 Position Bus/Base - Only 10mm [312311-B-020]

    Regular price $9.74 USD
    Sale price $9.74 USD Regular price $0.00 USD

    2 Position Bus/Base - Only 10mmThis heavy-duty dual stud busbar features two 3/8” studs for high-current connections. It supports large cable lugs and is ideal for linking batteries, power inverters,...

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