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Marinco S15-30 Shore Power Adapter 15A Male to 30A Female Twist-Lock

Manufacturer

Marinco

<h3>About Marinco: Trusted Marine Electrical Innovation Since 1972</h3><p><strong>Marinco</strong> has been a cornerstone of the marine electrical industry for more than five decades. The brand traces its roots to 1972, when founder Bud Toly, frustrated by the poor quality of available marine electrical gear, set out to engineer something better from the ground up. That spirit of problem-solving and uncompromising quality has defined Marinco ever since. Today, the brand is part of the Navico Group — a global leader in marine technology — and continues to serve everyone from weekend bass anglers to commercial vessel operators and major OEM boatbuilders.</p><p><a href="/11273-marinco">Marinco</a> is best known as a world-class manufacturer of shore power systems, but its catalog spans far beyond that single category. The brand's engineers design products for the real-world punishment of salt, spray, and constant moisture — environments where inferior components fail quickly and safe, reliable electrical connections are non-negotiable. Industry involvement is baked into the brand's DNA: <a href="/11273-marinco">Marinco</a> actively participates on ABYC standards committees, helping shape the very regulations its products are built to exceed.</p><h3>Shore Power, Signaling, and Ventilation — Built for the Water</h3><p>At the core of Marinco's reputation is its shore power lineup: heavy-duty cordsets, inlets, outlets, and adapters engineered for both 30-amp and 50-amp applications. The patented EEL (Easily Engaged Lock) jaw-clamp system allows one-handed connection without the frustration of threaded locking rings, and many premium connectors feature built-in LED power indicators so boaters can confirm live power at a glance. Products are engineered to CSA and UL standards, and nickel-plated brass contacts are used throughout to resist the corrosion that plagues lesser marine connectors.</p><p>Beyond shore power, Marinco offers an impressive range of marine accessories that keep vessels safe and comfortable. The brand's <a href="/11273-marinco-air-horns-201608">air horns</a> are a staple on boats of all sizes, delivering the kind of authoritative, regulation-compliant signals that can genuinely protect lives on the water. And for boaters who want to keep cabin air fresh without running down their battery bank, Marinco's <a href="/11273-marinco-solar-cabin-vents-202545">solar cabin vents</a> from its trusted Nicro line provide around-the-clock ventilation powered entirely by the sun — and a built-in rechargeable battery when the sun goes down.</p><h3>Why Boaters Choose Marinco</h3><ul><li><strong>OEM Trust:</strong> Major boatbuilders specify Marinco electrical components from the factory, a testament to the brand's reliability standards.</li><li><strong>Standards Leadership:</strong> Active participation on ABYC committees means Marinco products don't just meet standards — they help write them.</li><li><strong>Marine-Grade Engineering:</strong> Every product is designed for salt air, vibration, and moisture, not just adapted from a land-based design.</li><li><strong>Complete System Thinking:</strong> With over 800 electrical products engineered to work together, Marinco makes it easy to build a cohesive, safe onboard electrical system.</li><li><strong>Decades of Refinement:</strong> Over 50 years of feedback from real boaters has shaped every product iteration, from connector geometry to diaphragm materials.</li></ul><p>Whether you're outfitting a new build, upgrading aging shore power hardware, adding a safety horn, or solving a below-decks ventilation problem, Marinco brings proven engineering and category-defining products to every corner of the job.</p>

Part Number

S15-30
06/01/2036 12:55 AM
Sale Price

$41.49

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Marinco S15-30 is a practical shore power adapter that allows you to connect a 30-amp boat power cord to a standard 15-amp household outlet. Featuring the same ergonomic EEL™ design as Marinco's premium cordsets, this adapter provides easy handling and a secure grip during connection.

Key Features:

  • 15-amp straight blade male plug (NEMA 5-15P) connects to household outlets
  • 30-amp female twist-lock receptacle (NEMA L5-30R) accepts standard shore power cords
  • Built-in LED power indicator light confirms active connection
  • Ergonomic EEL™ style body for comfortable grip and easy handling
  • Durable construction with nylon plug bodies and nickel-plated brass contacts
  • Backed by Marinco's five-year warranty

Technical Specifications:

  • Rated for 15 amps at 125 volts
  • PVC jacket with nylon plug bodies
  • Nickel-plated brass contacts and terminals
  • Stainless steel assembly screws

Important Usage Notes:

This adapter is designed for temporary use in dry, enclosed locations only, such as powering your boat from a garage outlet. Unlike sealed shore power cordsets, this adapter does not feature sealing collars and is not rated for wet or outdoor environments. Always ensure proper electrical protection and never exceed the 15-amp capacity of the source outlet.

Products specifications

Amperage

15 Amps30 Amps

Type

Adapters

Voltage

125 Volts

Warranty Details

Five Years

it was good

Easy payment method

fast and easy

quick, easy, good coupon code.

Great Prices!

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So far everything looks great!

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My experience was quick and easy. Thank you

Easy shopping, but would be nice if the picture matched the model, it would have saved me 20 minutes of waiting on the phone for customer service.

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