Collection: Electrical - Accessories

The finishing details for dependable onboard electrical systems.

Explore marine electrical accessories designed to support the installation, maintenance, organization and protection of your vessel’s electrical equipment. From small replacement components to installation hardware, the right accessories can make electrical projects cleaner, more organized and easier to maintain.

Shop marine wiring accessories, electrical connectors, protective covers, mounting hardware, cable accessories, boots, caps, adapters and electrical installation supplies for sailboats, powerboats, yachts and other marine applications.

Whether you're completing a new electronics installation, upgrading an existing electrical system, replacing worn components or stocking your onboard tool and spare-parts supply, Roam & Harbor makes it easier to find the electrical essentials that help finish the job.

Finish the installation. Protect the system. Keep exploring.

459 products

  • Save $2.96 USD
    Sea-Dog

    Sea-Dog Round Voltage Meter 5V-15VDC w/Rainbow Dial [421616-1]

    Regular price $36.99 USD
    Sale price $36.99 USD Regular price $39.95 USD

    Round Voltage Meter 5V-15VDC with Rainbow DialThis digital dual-round volt meter displays voltage for the main and auxiliary batteries simultaneously. With the same compact size as...

  • Sea-Dog

    Sea-Dog USB USB-C Rocker Switch Style Power Socket [426521-1]

    Regular price $35.95 USD
    Sale price $35.95 USD Regular price $0.00 USD

    USB & USB-C Rocker Switch Style Power SocketThis USB & USB-C Rocker Switch Style Power Socket charges two devices simultaneously. Fits into any 13/16” x 1-7/16”...

  • Egis Mobile Electric

    Egis A Series White Toggle Panel Mount Circuit Breaker - Dual Pole 20A [3202-20]

    Regular price $37.40 USD
    Sale price $37.40 USD Regular price $0.00 USD

    A Series White Toggle Panel Mount Circuit Breaker - Dual Pole 20AFeatures: Easily Mounts In Standard Panels, accepting A-Series and C-Series magnetic-hydraulic circuit breakers. Includes mounting...

  • Save $25.01 USD
    Egis Mobile Electric

    Egis Automatic Timer Disconnect 160A - 12V [7615]

    Regular price $138.99 USD
    Sale price $138.99 USD Regular price $164.00 USD

    Automatic Timer Disconnect 160A - 12VPrevents auxiliary loads from draining batteries, maximizing operational readiness by eliminating dead batteries, and reducing the total lifetime cost of vehicle...

  • Save $9.61 USD
    Egis Mobile Electric

    Egis XD Flex 2 Single - Relay w/Knob - Tinned Wires [8710-1500]

    Regular price $140.99 USD
    Sale price $140.99 USD Regular price $150.60 USD

    XD Flex 2 Single - Relay with Knob - Tinned WiresFeatures: LED Status Display - Easy to see front-facing LED indicator provides visual device status, remote...

  • Save $48.61 USD
    Egis Mobile Electric

    Egis XD Series Triple Flex 2 Relay-ACR-Relay w/Knobs Tinned Wires [8730-1535]

    Regular price $341.99 USD
    Sale price $341.99 USD Regular price $390.60 USD

    XD Series Triple Flex 2 Relay-ACR-Relay with Knobs & Tinned WiresThe Egis relay replaces three individual high-amp relays with one compact module, reducing space significantly, eliminating...

  • Sea-Dog

    Sea-Dog 72" SAE Power Cable Polarized Electrical Connector [426906-1]

    Regular price $12.95 USD
    Sale price $12.95 USD Regular price $0.00 USD

    72" SAE Power Cable Polarized Electrical ConnectorThis SAE-type polarized electrical connector is a two-prong plug and socket connector set. Features:14-gauge duplex wireSpecifications: Length: 72 in. Volts: 12-24...

  • Save $1.86 USD
    Sea-Dog

    Sea-Dog USB 3.0 USB-C Power Socket w/Out Light [426510-1]

    Regular price $24.99 USD
    Sale price $24.99 USD Regular price $26.85 USD

    USB 3.0 & USB-C Power Socket without LightThis USB 3.0 & USB-C power socket charges two devices simultaneously. When split, the total 6A output is 3A...

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