50A to 30A Marine Shore Power Adapter – Safe, Heavy-Duty Power Conversion

This Shopcorp marine-grade adapter converts a 50 Amp SS2-50P male plug to a 30 Amp L5-30R female outlet, delivering a reliable and stable power connection for boats, RVs, docks, generators, and shore stations. Engineered for harsh marine environments, it ensures efficient and secure electrical transfer.

Built with Heavy-Duty STW 10AWG Cable

Featuring premium STW 10AWG wiring, this adapter withstands demanding outdoor conditions, heat, moisture, and abrasion. Rated for 125/250V and 12,500W, it provides consistent performance for marine and recreational systems requiring dependable shore power.

Marine-Grade Safety & High-Quality Materials

Constructed with solid brass contacts for superior conductivity and corrosion resistance. The cable includes PVC insulation, molded strain relief, and ergonomic grips for safe handling in wet or coastal environments. Fully UL & ETL listed for electrical safety and long-term durability.

Ideal for Marine, RV, and Generator Power Systems

Whether upgrading a dock connection, powering an RV at a campsite, or adapting a generator plug, this 50A to 30A adapter ensures compatibility, secure locking connection, and efficient power delivery.