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Camco 55338 PowerGrip Generator Adapter L14-30P to TT-30R 30-Amp 125V/3750W ETL Listed

Camco 55338 PowerGrip 30-Amp Generator Adapter with L14-30P 4-prong locking male plug and TT-30R 30-amp RV female receptacle
Camco PowerGrip 30-Amp Generator Adapter, L14-30P to TT-30R
 
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Part Number: 55338
Manufacturer: Camco

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Camco 30-Amp / 125V / 3750W ETL Listed Camco 55338 PowerGrip Generator-to-RV Power Adapter -- L14-30P to TT-30R

Run your 30-amp RV directly from a generator with a 4-prong NEMA L14-30 twist-lock outlet. The Camco 55338 PowerGrip bridges that connection cleanly and safely, with a non-slip grooved handle and ETL-listed construction you can trust at the campsite or job site.

Power Your RV from a 4-Prong Generator Outlet

Many portable and standby generators -- including popular models from Honda, Generac, Champion, and Westinghouse -- provide a NEMA L14-30 4-prong twist-lock receptacle as their primary 30-amp output. The problem: your RV shore power cord terminates in a TT-30R female connector, which won't mate directly. The Camco 55338 solves that mismatch in seconds.

Plug the L14-30P male end into the generator's twist-lock outlet, rotate to lock, then connect your RV's shore power cord to the TT-30R female end. No splicing, no adapters-on-adapters, no guesswork. Rated at 125V/3750W and ETL certified to UL standards, this adapter handles the full current draw of a 30-amp RV system.

L14-30P Locking Plug

4-prong NEMA L14-30P male end twists and locks securely into the generator receptacle, preventing accidental disconnection under load.

TT-30R Female Receptacle

Standard 30-amp RV female outlet accepts your existing TT-30R shore power cord without any additional adapter needed.

PowerGrip Non-Slip Handle

Deeply grooved grip surface lets you insert and remove the adapter firmly even with wet or gloved hands -- a real advantage in rain or cold weather.

ETL Listed / Safety Certified

ETL listing confirms testing to applicable UL standards. Meets safety requirements for use at campgrounds, RV parks, and temporary generator hookups.

Who Needs This Adapter?

This adapter is specifically for RVers who use a portable or standby generator as a power source. The L14-30 outlet is a 4-wire configuration (two hot legs, neutral, and ground) commonly found on dual-voltage generators in the 3500W-7500W class. If your generator has a round 4-prong twist-lock outlet and you own a 30-amp RV, this is the correct adapter.

  • Full-timers and weekend campers boondocking without shore power hookups
  • RV owners using a generator during travel stops or at dry-camping sites
  • Technicians and service facilities temporarily powering an RV from a shop generator
  • Emergency preparedness -- powering the RV during a home power outage with a standby generator

What This Adapter Does

The L14-30P plug end provides a 4-wire connection at the generator (2 hot lines, 1 neutral, 1 ground). The TT-30R female end presents a standard 2-wire-plus-ground 30-amp RV connection. The adapter is wired to pass the appropriate conductors, converting the generator's 4-prong output to the 3-prong RV plug standard. This is a one-piece molded adapter -- no loose cord, no separate pigtail.

Know Your Generator Outlet Before You Buy

The L14-30 is a locking, 4-prong receptacle. It is not the same as an L5-30 (3-prong locking), a 14-30R (dryer-style straight-blade), or a 30-amp TT-30 outlet. Check your generator's spec sheet or look at the outlet: L14-30 outlets are round with 4 slots arranged in an arc plus a center notch. If your generator has a 3-prong locking outlet (L5-30), you need a different adapter -- this one will not fit.

30-Amp System Compatibility

This adapter is designed for 30-amp RV systems only. Do not use this adapter to connect a 50-amp RV directly to an L14-30 generator outlet -- a 50-amp RV requires a different wiring configuration and a higher-rated adapter. Confirm your RV shore power cord is TT-30R (30-amp, 3-prong) before purchasing.

Installation and Use Tips

  • Always connect the adapter to the generator before starting the generator and before connecting the RV shore cord.
  • Twist the L14-30P plug clockwise until it locks -- do not leave it in the unlocked position.
  • Keep the adapter and connection point dry during use; if rain is expected, shield the connection with a weatherproof cover.
  • Do not exceed the 30A/3750W rating. Overloading the adapter can cause overheating -- monitor your RV's total load.
  • Inspect the adapter for cracked housing, bent pins, or burned contacts before each use. Retire any damaged adapter immediately.

Related Camco Power Products

Camco makes a wide range of RV power adapters, surge protectors, and extension cords. If you need a 50-amp RV solution, a different inlet configuration, or a power management device, look for Camco's PowerGrip and TastePURE power accessory lines. Part number 55338 is specific to the L14-30P-to-TT-30R configuration.

Electrical Specifications

Camco Part Number55338
Vendor / Internal Ref.19-1392
UPC014717553384
Voltage Rating125V
Amperage Rating30A
Wattage Rating3750W
Safety CertificationETL Listed (tested to UL standards)

Plug and Receptacle Configuration

Male Plug (Generator Side)NEMA L14-30P -- 4-prong twist-lock, 125/250V locking male
Female Receptacle (RV Side)NEMA TT-30R -- 30-amp RV standard female, 3-prong (2 hot + ground)
Number of Prongs (Male End)4 (two 120V hot blades, 1 neutral, 1 ground)
Number of Prongs (Female End)3 (standard 30A RV TT-30)
Locking TypeTwist-lock male (L14-30P); standard female (TT-30R)

Physical / Construction

Adapter StyleOne-piece compact dogbone -- no loose cord
Handle DesignPowerGrip -- deeply grooved non-slip housing
Housing MaterialImpact-resistant thermoplastic
Contact MaterialBrass contacts (nickel-plated typical of PowerGrip series)

Compatibility Reference

RV Shore Cord Required30-amp TT-30 shore power cord (sold separately)
Generator Outlet RequiredNEMA L14-30R twist-lock receptacle on generator
Compatible Generator BrandsHonda, Generac, Champion, Westinghouse, Briggs and Stratton, and others with L14-30R outlets
RV Amperage System30-amp RV systems only
Not Compatible With50-amp RV systems; L5-30P (3-prong locking) generators; straight-blade 14-30 (dryer) outlets

What's in the Box

Included1x Camco 55338 PowerGrip L14-30P to TT-30R adapter
Not IncludedRV shore power cord, generator, surge protector, extension cord

Important Information -- Read Before Use

  • Rated for 30A/125V/3750W maximum. Do not exceed this rating; overloading creates a fire and shock hazard.
  • This adapter is for 30-amp TT-30R RV systems only. It is not compatible with 50-amp RV shore power cords or 50-amp RV electrical systems.
  • The male end is L14-30P (4-prong locking). Verify your generator has an L14-30R receptacle before purchase. This adapter will not fit L5-30 (3-prong locking) or standard straight-blade outlets.
  • Always de-energize the generator before connecting or disconnecting the adapter. Connect the adapter first, then start the generator and plug in the shore cord.
  • Inspect before every use. Discard if housing is cracked, pins are bent or corroded, or any burn marks are present.
  • For outdoor/temporary use only. Do not use as a permanent installation.
  • Keep connections dry. Use a weatherproof cord cover if the connection will be exposed to rain or moisture.


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