Hubbell 15A & 20A Products & Dockside Boxes

Marine Shore Power Solutions for Every Dock

When boats are docked at marinas, reliable electrical connections are essential for powering onboard systems—from lighting and refrigeration to air conditioning and battery chargers. Dockside power boxes and shore power receptacles rated at 15 and 20 amps provide the crucial link between marina power pedestals and smaller vessels or auxiliary electrical needs at the dock. These marine-grade electrical enclosures are engineered to withstand the harsh conditions of dockside environments, where constant exposure to moisture, salt spray, and temperature fluctuations can quickly degrade standard electrical components.

Unlike conventional residential electrical boxes, marine dockside boxes feature specialized construction designed for wet and damp locations. Most are manufactured from corrosion-resistant materials such as reinforced phenolic or fiberglass composites that won't deteriorate when exposed to saltwater environments. The weatherproof design typically includes molded-in knockouts, sealed hubs, and gasket-ready covers that create reliable moisture barriers. For smaller boats and general dockside utility applications, 15A and 20A configurations offer sufficient power capacity without the complexity of higher-amperage shore power systems, making them ideal for everything from powering tools during boat maintenance to running dehumidifiers and small appliances.

Key Considerations for Dockside Power Installations

When selecting dockside electrical boxes and receptacles, understanding the electrical requirements is paramount. The 15-amp rating suits basic lighting circuits and smaller equipment, while 20-amp boxes accommodate higher-demand applications such as battery chargers and power tools. Both configurations must comply with NEC Article 555 requirements for marinas, which mandate GFCI protection for shore power receptacles to prevent electrical shock hazards in these inherently wet environments. The physical construction matters just as much—look for boxes with adequate cubic inch capacity to house wiring connections properly, and ensure all components carry appropriate wet location ratings.

Installation location also plays a critical role in performance and longevity. Dockside boxes should be mounted to minimize direct water exposure while remaining accessible for maintenance. Color-coding (often yellow for marine applications) helps identify marine-rated components and prevents accidental substitution with non-marine hardware. Proper hub sizing ensures watertight cable entry, and choosing boxes with multiple knockouts provides installation flexibility for different conduit configurations.

Why Hubbell Leads in Marine Electrical Products

Hubbell has been manufacturing electrical innovations since 1888, when founder Harvey Hubbell II invented the separable electrical plug—the same basic connection technology that underlies modern shore power systems. This heritage of electrical innovation translates directly into the company's marine product line, where decades of experience in harsh-environment applications inform every design decision. Hubbell marine dockside boxes are built to meet the demanding requirements of boatyards and marinas, offering the corrosion resistance and reliability that marine electricians depend on for safe, long-lasting installations.

From small boat docks to commercial marinas, proper shore power infrastructure ensures boaters can safely access electrical power without risk of shock, fire, or equipment damage. Investing in purpose-built marine electrical components from established manufacturers provides peace of mind that your dockside power system will perform reliably season after season, regardless of weather conditions or saltwater exposure.