Marinco 100 Amp 125/250V 3-Pole, 4-Wire Shore Power Cable Set Extension Cord - 50'

The Marinco 100 Amp 125/250V 3-Pole, 4-Wire Shore Power Cable Set Extension Cord in 50' length is the standard-issue solution for extending electrical reach from marina pedestals to vessels requiring robust, weatherproof connectivity. Whether you're docked at a commercial facility or a remote anchorage with limited pedestal proximity, this extension cord eliminates the compromise between safe amperage delivery and operational distance. Built to the demanding electrical specifications of modern marine vessels, this Marinco cable handles the full load requirements of air conditioning, heating, water heating, and galley systems without voltage drop or safety concerns—critical for liveaboards and cruising boats spending extended seasons away from home ports.

The 100 Amp 125/250V configuration with 3-pole, 4-wire design delivers dual-voltage capability essential for North American dockside infrastructure, where 125/250V service is standard across marinas from Florida to the Pacific Northwest. The four-wire architecture—hot, hot, neutral, and ground—ensures proper load distribution across both legs of the service panel, preventing single-leg overload conditions that degrade equipment lifespan and trigger circuit breaker nuisance trips during peak demand periods. Marinco's marine-grade insulation and connector construction resist salt spray corrosion, UV degradation, and the thermal cycling that rapidly degrades inferior extension cords in maritime environments. The 50' length provides practical reach without requiring multiple cord segments that introduce connection points and voltage drop risk.

Boaters with vessels equipped for full-time or extended cruising recognize this extension cord as essential backup infrastructure—a second pedestal cable stored aboard handles contingencies when primary dock connections fail or prove insufficient during peak-load scenarios. Liveaboards and seasonal cruisers benefit most, as does any boat owner operating from facilities where pedestal distance exceeds standard 25' supplied cords. Installation requires direct connection between marina pedestal outlet and vessel inlet; compatibility with your boat's shore power inlet is critical, so confirm the four-pin connector configuration matches your vessel's receptacle before purchase. Proper storage coiled loosely or on a reel—never kinked—extends service life indefinitely in marine service.