ADCAUDX Marine 50A Shore Power Adapter — SS2-50P to NEMA 14-50R, 1.5 ft, Weather-Resistant ETL

ADCAUDX Marine 50 Amp Shore Power Adapter converts a 50A SS2-50P twist-lock marine shore power inlet into a 4-prong NEMA 14-50R RV/EV/dryer outlet.

This compact 1.5-foot adapter cord is built to join marine-style shore power (SS2-50P) with standard 14-50R 4-prong appliances and vehicles, so you can power an RV, EV charger, generator-fed dryer or onboard equipment from a twist-lock shore connection. Constructed with STW true-copper conductors, a weather-resistant PVC jacket, and ETL certification, it’s engineered for reliable outdoor use where safe, high-current connections matter.

How does this adapter let me use a 14-50 RV plug on a marine shore power pedestal?

The adapter has a NEMA SS2-50P male twist-lock plug that mates with marine shore power inlets and a NEMA 14-50R female socket that accepts 4-prong RV or EV-style plugs. It converts the physical connector type while maintaining the full 50 amp, 125/250 V capacity so connected equipment receives rated current without rewiring.

• SS2-50P male twist-lock plug with sealing ring for secure marine connection
• NEMA 14-50R female 4-prong receptacle with 90° ergonomic grip handle
• Rated at 50A, 125/250 V — supports up to 6,250 W at 125 V or 12,500 W at 250 V
• 1.5 ft length keeps the adapter compact and easy to stow

Is this adapter safe and durable for outdoor marine and RV use?

Yes — ADCAUDX designed the cable and connectors for outdoor power environments. The assembly uses heat-resistant molded ends, a tough PVC sheath over STW cables, and an ETL listing to meet recognized safety standards for high-current power cords.

• STW cable: 6 AWG x 3 conductors for live/neutral and 8 AWG drain/ground
• Molded connectors and sealing ring help resist moisture and strain
• 90° grip handle on the 14-50R for easier plugging and unplugging
• ETL certification confirms independent electrical safety testing

What equipment can I power with this 50 amp adapter?

The adapter supports any device or vehicle designed for a 50A, 4-prong 14-50 receptacle when the supply is a compatible SS2-50P shore source. Typical uses include RVs, EV chargers that accept 14-50, portable generators, dryers, welders, and shore-powered boat systems that need a 14-50 interface.

• 50A RV shore power hookups and EV chargers using 14-50 plugs
• Portable generators or shore pedestals supplying SS2-50P twist-lock power
• Appliances like dryers or welders rated for 50A 125/250V
• Short, reliable transition cable when permanent rewiring isn’t practical

How do I install and maintain the adapter for dependable performance?

Installation is plug-and-play: align the SS2-50P twist-lock and secure the screw ring, then insert the 14-50R plug into the appliance. Keep contacts clean and dry, inspect the jacket and connectors before each season, and store the adapter protected from prolonged UV and harsh chemicals.

• Hand-tighten SS2-50P screw ring for a secure twist-lock connection
• Use the 90° grip handle to avoid pulling on the cord body
• Routinely check for cuts, abrasions, or corrosion at contacts
• Store indoors or in a ventilated cover when not in use

Who this is for: This ADCAUDX SS2-50P to 14-50R adapter is ideal for boat owners, RV and camper drivers, mobile electricians, and anyone who needs a short, dependable way to connect a 4-prong 50A appliance or vehicle to a marine-style twist-lock shore power source. It’s also useful for service techs and renters who must adapt between shore pedestals and 14-50 equipment without altering fixed wiring.