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 4005 Standard CableCap - Small Pair [4005]

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

    4005 Standard CableCap - Small PairFeatures: Cable Size - 4, 2, 1 Pair - Red/Black Insulates battery terminals which have added adapter terminals For batteries with...

  • Blue Sea Systems

    Blue Sea 2510 Terminal Block 30AMP - 10 Circuit [2510]

    Regular price $16.99 USD
    Sale price $16.99 USD Regular price $0.00 USD

    2510 Terminal Block 30AMP - 10 CircuitFeatures: Closed back design completely insulates power from the mounting surface Each screw pair is 1 isolated circuit Jumpers allow...

  • Blue Sea Systems

    Blue Sea 9218 Terminal Block Jumpers f/2400 Series Blocks - *Package of 5* [9218]

    Regular price $4.99 USD
    Sale price $4.99 USD Regular price $0.00 USD

    9218 Terminal Block Jumpers for 2400 Series Blocks - Package of 5Features: Jumpers allow creation of common circuits on independent connectors Fits 20 AMP terminal blocks...

  • Blue Sea Systems

    Blue Sea 4013 CableCap - Black 0.50 Stud [4013]

    Regular price $6.99 USD
    Sale price $6.99 USD Regular price $0.00 USD

    4013 CableCap - Black 0.50 StudFeatures:Insulate stud type connectors on alternators, starters, windlasses and other high amperage devicesWARNING: This product can expose you to chemicals including...

  • Blue Sea Systems

    Blue Sea 2606 Terminal Black 65AMP - 6 Circuit [2606]

    Regular price $29.99 USD
    Sale price $29.99 USD Regular price $0.00 USD

    Terminal Block 65AMP - 6 CircuitFeatures: Closed back design completely insulates power from the mounting surface Each screw pair is 1 isolated circuit Jumpers allow creation...

  • Blue Sea Systems

    Blue Sea 4012 CableCap - Red 0.50 Stud [4012]

    Regular price $6.99 USD
    Sale price $6.99 USD Regular price $0.00 USD

    4012 CableCap - Red 0.50 StudFeatures:Insulate stud type connectors on alternators, starters, windlasses and other high amperage devicesWARNING: This product can expose you to chemicals including...

  • Blue Sea Systems

    Blue Sea 4017 Straight Terminal CableCap - Large [4017]

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

    4017 Straight Terminal CableCap - LargeInsulates battery terminals which have standard automotive posts.Features:Designed to fit standard automotive postsWARNING: This product can expose you to chemicals including...

  • Blue Sea Systems

    Blue Sea 4015 CableCap - Black 1.25 to 0.70 [4015]

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

    CableCap - Black 1.25 to 0.70Features:Insulate stud type connectors on alternators, starters, windlasses and other high amperage devicesWARNING: This product can expose you to chemicals including...

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