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Marinco CS504-50W EEL ShorePower Cordset 50A 125/250V 50ft White

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

CS504-50W
08/02/2036 5:29 AM
Sale Price

$858.97

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Product Details

The Marinco CS504-50W is a 50-foot, 4-conductor EEL (Easily Engaged Lock) ShorePower cordset rated at 50 amps and 125/250 volts in white. Engineered for serious boaters, it features Marinco's patented jaw-clamp locking mechanism that delivers a secure, watertight connection with just one hand — no locking ring required.

EEL Technology — One Hand. A Simple Twist. Full Power.

Traditional shore power cordsets require two hands and a threaded locking ring to achieve a watertight seal. The EEL system replaces this with a patented jaw-clamp design that snaps and locks securely in a single motion, eliminating the risk of an improperly sealed connection caused by a forgotten or undertightened locking ring.

Key Features:

  • Patented jaw-clamp EEL design — one-handed connection with a secure, waterproof seal every time
  • No sealing ring required — eliminates the most common cause of water intrusion
  • Built-in cord light at both ends — power indicator lights alert you when the cord is plugged in and energized
  • 50-foot length — 4-conductor construction rated for 50A at 125/250V AC
  • Compatible with standard NEMA inlets — works with your existing boat inlet
  • Built for harsh marine environments — UL approved and meets ABYC industry standards
  • White color — clean, easy-to-identify dock-to-boat connection

The CS504-50W meets and exceeds rigorous UL testing standards and complies with global marine industry requirements including ABYC. It is compatible with the full range of Marinco EEL pigtail and Y-adapter accessories, making it easy to expand your shore power setup without replacing your existing inlet hardware.

Products specifications

Amperage

50 Amps

Length

50 Feet

Voltage

125/250 Volts

Warranty Details

Five Years

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