MECMO 30A TT-30P to L5-30R RV Locking Adapter Cord 1ft — 125V 3750W, 10/3 STW

Compact 30-amp RV power adapter that converts a TT-30P 3-prong plug to an L5-30R twist-lock receptacle for safe, reliable 125V, 3750W connections.

This MECMO adapter is a short, heavy-gauge cord built to let RVs, generators, food trucks and transfer switches interconnect when their hookups use different 30-amp connectors. The ETL-listed cable uses 10/3 STW copper conductors and a threaded locking L5-30R female to produce a secure electrical connection while withstanding outdoor exposure. At 1.5 feet it’s ideal for bridging a small gap without leaving excess cord vulnerable to wear.

How does this adapter make hooking up an RV easier?

The adapter converts a standard TT-30P male plug on an RV or generator to a twist-lock L5-30R female inlet so you can mate with transfer switches or specific campground pedestals that require a locking connection. Its short length keeps connections tidy and reduces trip hazards compared with long extension cords.

• Converts TT-30P male to L5-30R locking female for 30A hookups
• 1.5 ft length minimizes loose cable and tangles
• Threaded locking ring secures the connection under vibration

Will this cable handle outdoor conditions and power demands?

Yes — the adapter uses UL62-rated 10 AWG copper conductors and STW vinyl jacketing designed for moisture and sunlight exposure, making it suitable for outdoor RV and generator use. Its 125V, 3750W rating matches common 30-amp circuits without overloading the cable.

• 10/3 AWG copper for reliable conductivity and less voltage drop
• STW flexible vinyl jacket resists moisture and UV exposure
• ETL listed for safety and performance verification

Is this adapter compatible with my generator or transfer switch?

If your generator or transfer switch provides a 30-amp TT-30 or requires a twist-lock L5-30 inlet, this adapter bridges the two standards. It’s commonly used to connect RV inlets to generator outlets or to convert an RV-ready receptacle for transfer-switch-ready equipment.

• Works between TT-30P and L5-30R 30-amp configurations
• Suitable for RVs, portable generators, food trucks and transfer switches
• Designed for 30A-rated systems at 125 volts (3750 watts)

How do I install and secure the connection safely?

Installation is plug-and-play: insert the TT-30P male plug into your RV or generator inlet, then thread the L5-30R locking ring to secure at the receiving outlet. Always confirm power is off before connecting and inspect for damage; use proper grounding and follow local electrical codes.

• Always switch power off before connecting or disconnecting
• Thread the L5-30R locking ring until snug to prevent accidental unplugging
• Inspect jacket and prongs for wear before each use

Who this is for: RV owners, vanlifers, food truck operators, and homeowners who use portable generators or manual transfer switches and need a short, durable adapter to convert a TT-30P inlet to an L5-30R twist-lock outlet. Choose the MECMO adapter when you want a compact, ETL-listed solution that reduces loose cord, provides a locking connection, and stands up to outdoor conditions without overcomplicating your power setup.