Conntek 30 Amp Shore Power Y-Adapter, 3-Foot L5-30 Plug to Dual L5-30 Receptacles with LEDs & Sealing Collars

The Conntek 17220 Shore Power Y-Adapter splits a single NEMA L5-30 shore outlet into two fully molded 30A L5-30 receptacles with LED power indicators and sealing collars for splash resistance.

Designed for marinas, dockside setups, and RV/boat owners who occasionally need to share a single 30-amp locking shore power outlet, this three-foot Y-adapter converts one L5-30P plug into two L5-30R connectors. Every end is molded and features threaded rings for secure connections, plus visual LED indicators so you can confirm power at a glance. The kit also includes two sealing collars that bridge the paired receptacles to reduce the chance of water intrusion at the mating surfaces.

How does this Y-adapter let two boats use one 30A outlet safely?

The adapter maintains the locking L5-30 connection style that prevents accidental unplugging while the molded construction minimizes exposed conductors. LED lights on the adapter quickly verify live power without needing a meter, and threaded rings lock the plugs in place for a secure electrical join.

• Molded plug and dual receptacles reduce loose wiring and wear.
• Threaded locking rings keep the connections tight under motion.
• LED indicators indicate presence of shore power instantly.
• Sealing collars provide an added splash-resistant barrier at the junction.

Will this work with my 30-amp shore pedestal or generator L5-30 outlet?

Yes — the Conntek 17220 uses standard NEMA L5-30P (plug) to two NEMA L5-30R (receptacles), matching common 30A twist-lock shore and generator outlets. It does not change the circuit’s electrical rating, so the source pedestal or generator must be able to safely supply the combined load of both vessels.

• Standard NEMA L5-30P to dual L5-30R configuration.
• Maintains original 30-amp wiring and grounding layout.
• Does not convert voltage or increase circuit capacity.
• Ideal for short-term sharing or parallel connection at the dock.

What are the physical and durability features of this adapter?

The adapter is three feet long, providing some separation between vessels and making it easier to reach the shore outlet. All ends are fully molded for strain relief and durability in marine environments, and the threaded collars help maintain a watertight mechanical connection. The included sealing collars give an extra layer of protection where two receptacles meet.

• Overall length: 3 feet for practical reach and routing.
• Fully molded ends for improved longevity and reduced moisture ingress.
• Threaded rings lock connectors against vibration and movement.
• Two sealing collars included to help reduce water intrusion at the splice.

How should I use and store the adapter to keep it reliable?

Use the adapter only on properly rated 30A L5-30 outlets and avoid overloading the source circuit. After use, dry the adapter and store it away from direct sunlight and chemicals. Inspect the molded ends, threads, and LEDs regularly for damage before each season.

• Connect to a verified 30A L5-30 power source only.
• Keep connections clean and thread collars fully tightened while in use.
• Dry and stow indoors when not in use to prolong service life.
• Check LEDs and insulation for cracks or discoloration before use.

Who is this for: The Conntek 17220 is ideal for boaters, marinas, and RV owners who occasionally need to share a single NEMA L5-30 shore outlet between two vehicles. It’s built for people who want a compact, lockable, visibly verified connection with added sealing features for dockside conditions — not for permanently increasing circuit amperage or performing electrical repairs. Always follow local electrical codes and the power provider’s rules when using a shared adapter.