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SmartPlug B30ASSY-NT 30 Amp Boat Shore Power Inlet and Connector Combo Kit

Manufacturer

SmartPlug

<h3>SmartPlug: Reinventing Shore Power Safety for Marine &amp; RV Applications</h3><p>Founded in 2007 in Seattle, Washington, SmartPlug set out to solve one of the most persistent hazards in boating and RV ownership: unreliable shore power connections. Traditional twist-lock connectors — largely unchanged since the 1930s — are notorious for developing loose connections and corrosion over time, two of the leading causes of electrical fires at marinas and campgrounds. SmartPlug was built from the ground up to change that.</p><h3>A Patented System Built Around Safety</h3><p><strong>SmartPlug's shore power system</strong> replaces the aging twist-type design with an intuitive, straight-in connector that locks securely using side clips rather than relying on a threaded collar. The result is a system that delivers dramatically more electrical contact area than conventional connectors, a multi-point locking mechanism, and triple weatherproof seals that keep moisture, salt spray, and dust out of the housing — the very conditions that cause corrosion and connection failures.</p><p>The 30-amp inlet also features an epoxy-potted thermal breaker that trips before wire jackets can melt, then automatically resets once temperatures drop to a safe level — a safety feature found in no other shore power system on the market. Even installation is thoughtfully designed, with color-coded clamping screws that match standard wire colors to make the process nearly foolproof.</p><h3>A Full Line of Shore Power Products</h3><p>SmartPlug's product catalog covers every link in the shore power chain. Whether you need a retrofit connector for an existing cord, a complete inlet-and-connector combo kit, or a full cordset for a new installation, SmartPlug offers solutions for 15-amp, 30-amp, and 50-amp systems. Their <a href="/11569-smartplug-marinco-shore-power-adaptors-202219">shore power adaptors</a> are especially popular among boaters who frequent diverse marinas where outlet configurations vary, ensuring a compatible, secure connection is always within reach. Beyond marine use, SmartPlug also produces RV, specialty vehicle, and dockside power products, making their system one of the most versatile shore power platforms available.</p><h3>Why Boaters and RV Owners Trust SmartPlug</h3><p>SmartPlug products are respected by marine electricians, insurance professionals, and passionate boaters alike. The ergonomic straight-in design eliminates the fumbling and torquing associated with twist-locks — a meaningful advantage when connecting in the dark, in rough weather, or for users with limited hand strength. The brand's commitment to continuous improvement is evident in ongoing design refinements driven by real-world feedback from the boating and RV community.</p><p>For anyone who stores their boat or RV at a dock or campground for extended periods, upgrading to a SmartPlug system is one of the most impactful electrical safety investments available.</p>

Part Number

B30ASSY-NT
06/01/2036 9:13 AM
Sale Price

$238.00

In Stock (10+)

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Usually delivered within 2 days

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FREE SHIPPING

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The SmartPlug B30ASSY-NT Combo Kit provides everything needed to upgrade your boat's shore power system with superior 30 amp overheat protection. This complete kit includes both the stainless steel boat inlet and the female connector, allowing you to replace the boat-side end of your existing shore power cable with SmartPlug's advanced design that eliminates the overheating problems common with traditional NEMA shore power connections.

What's Included:

  • SmartPlug 30A boatside female connector with blue LED power indicator
  • Stainless steel 30A boat inlet with fire- and weather-resistant thermoplastic housing
  • Rear mounting gasket for weatherproof seal
  • Cable strain relief
  • Hex key for installation

SmartPlug Technology Advantages:

  • Superior electrical contact: Straight nickel-plated brass pins provide 20 times more surface area than curved NEMA pins, dramatically reducing resistance and heat buildup
  • Secure connection: Unique sleeve design fits snugly within the inlet, eliminating tension on pins and clips; spring-loaded side clips lock automatically
  • Corrosion resistance: 316 stainless steel external components and tinned copper conductors for marine environments
  • Weatherproof seal: TPE Dyna-flex cord seal prevents water intrusion
  • Easy installation: Mounts using industry-standard hole pattern compatible with Marinco and Hubbell inlets; plug shape ensures correct insertion every time
  • Visual power confirmation: Built-in blue LED indicator glows when shore power is active

Installation is straightforward using the included instructions. Simply replace your existing shore power connector and inlet with the SmartPlug components. The improved electrical conductivity and secure locking mechanism provide reliable, safe shore power delivery that addresses the root cause of most shore power failures—overheating from poor electrical contact.

Products specifications

Amperage

30 Amps

Type

Female ConnectorsInlet

Voltage

125 Volts

Warranty Details

Seven Year Limited

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