RVGUARD 4 Prong 30 Amp to 30 Amp RV Generator Adapter Cord 12 Inch, STW 10/3, L14-30P Locking Male Plug to TT-30R Female with

4.8 4.8 out of 5 stars | 4,160 ratings

Price: 25

Last update: 08-11-2024


About this item

Electrical Rating: 30 Amp L14-30P locking male plug to 30 Amp TT-30R female receptacle standard connector. Must have if you power 30 Amp RV from generator.
Superior Durability: RVGUARD adapter is built with 100% copper wiring coated with flame retardant and UV-resistant PVC sleeve that serves as protection from outdoor elements, wear and tear.
Disconnect Handle: The RVGUARD disconnect handle is for easier plugging in and unplugging without damaging the cable.
Safe Construction: L14-30P male end can be locked securely into place at the generator end, which will avoid the cord slipping from holster and lock it tightly.
Power Indicating: LED power indicator light of RVGUARD adapter cord visually informs the user when the cord is connected to the power source.

Product information


Top reviews from the United States

Phil Jones
5.0 out of 5 stars Great quality
Reviewed in the United States on July 20, 2024
The cord works perfectly to connect my generator to my house. It's a bonus that it also comes with a tie wrap and storage bag.
woof woof
5.0 out of 5 stars Good quality
Reviewed in the United States on August 7, 2024
Water proof and durable
EdouardP
5.0 out of 5 stars Work s Well
Reviewed in the United States on July 29, 2024
This is fairly flixible for a heavy duty cable. It works well in my backup generator setup.
kathryn overton
5.0 out of 5 stars Great
Reviewed in the United States on May 7, 2024
Great price and quick shipping
PJM102
4.0 out of 5 stars Seems very well made
Reviewed in the United States on May 30, 2021
I have the 15’ cord. Did a load test at 25 amps (measured with amp meter). Cord was fine.
I only went 4 stars because I did not deconstruct the cord to verify if in fact is is 10 gauge copper or how good the terminations are. But based on load test, size, and flexibility of cord it must be 10 gauge copper. Time will tell if terminations hold-up.
The ends do seem well made, heavy duty.

My order arrived with a nice surprise! It included a NEMA L14 30P female x NEMA L5 30R male adapter (a version of 4 prong x 3 prong adapter). I was actually looking for that adaptor when I ran across this cord. So delighted I have a another tool in my elect power kit. See photos.
It’s made in China so we know to be careful :-(

2 words of CAUTION:
1) How long of a cord is safe for use? Capacity of wire is a function of wire type and length given its gauge size (thickness). As you have seen on any extension cord warning, you must be careful with wire lengths. I see many reviews/questions were folks are using (or wanting to use) very long cords. Be careful with how much load you put on the cord. A 10 gauge cord (like these) in 240V service and 10’ long will handle much more load than the same gauge cord in 75’ length. For example, this 10 gauge copper wire pulling 30 amps will lose 90-100 volts at 100’.
2) If adapting from a 4 prong 240V cord to a 3 prong 125V be sure you understand the difference between 240v service and 120v service. Your are cutting your voltage in half. Sparing you Ohm’s Law tech talk, a 120v circuit will see twice the amps of a 240v circuit at same wattage load. Example, say your coffee pot hot plate or microwave uses 1200 watts. At 120v that is ~ 10 amps (1200 watts/120 volts = 10 amps). If a 1200 watt load is on 240V service, the amp draw is half at 5 amps.
If you adapt a 240v cord to 120v it’s worse for a given cord length. Cuz you are losing one of the hot wires to help carry the load.
I share all this to help others understand how careful you should be when using long cords. And especially when using adapters like these cited here.
*And yeah I know typical household or RV coffee pots don’t run on 240V service. I use that as an example only.
Customer image
PJM102
4.0 out of 5 stars Seems very well made
Reviewed in the United States on May 30, 2021
I have the 15’ cord. Did a load test at 25 amps (measured with amp meter). Cord was fine.
I only went 4 stars because I did not deconstruct the cord to verify if in fact is is 10 gauge copper or how good the terminations are. But based on load test, size, and flexibility of cord it must be 10 gauge copper. Time will tell if terminations hold-up.
The ends do seem well made, heavy duty.

My order arrived with a nice surprise! It included a NEMA L14 30P female x NEMA L5 30R male adapter (a version of 4 prong x 3 prong adapter). I was actually looking for that adaptor when I ran across this cord. So delighted I have a another tool in my elect power kit. See photos.
It’s made in China so we know to be careful :-(

2 words of CAUTION:
1) How long of a cord is safe for use? Capacity of wire is a function of wire type and length given its gauge size (thickness). As you have seen on any extension cord warning, you must be careful with wire lengths. I see many reviews/questions were folks are using (or wanting to use) very long cords. Be careful with how much load you put on the cord. A 10 gauge cord (like these) in 240V service and 10’ long will handle much more load than the same gauge cord in 75’ length. For example, this 10 gauge copper wire pulling 30 amps will lose 90-100 volts at 100’.
2) If adapting from a 4 prong 240V cord to a 3 prong 125V be sure you understand the difference between 240v service and 120v service. Your are cutting your voltage in half. Sparing you Ohm’s Law tech talk, a 120v circuit will see twice the amps of a 240v circuit at same wattage load. Example, say your coffee pot hot plate or microwave uses 1200 watts. At 120v that is ~ 10 amps (1200 watts/120 volts = 10 amps). If a 1200 watt load is on 240V service, the amp draw is half at 5 amps.
If you adapt a 240v cord to 120v it’s worse for a given cord length. Cuz you are losing one of the hot wires to help carry the load.
I share all this to help others understand how careful you should be when using long cords. And especially when using adapters like these cited here.
*And yeah I know typical household or RV coffee pots don’t run on 240V service. I use that as an example only.
Images in this review
Customer image Customer image
RPS
5.0 out of 5 stars Exactly what was needed
Reviewed in the United States on July 2, 2024
Have been looking for a Portable Generator to 30 Amp RV connector for some time. Ran across this brand and decided to give it a try.

It is well built, very sturdy and exactly what I needed. Highly recommend if you are in need of such a connector.
Dave V.
5.0 out of 5 stars 30 to 50 amp adapter
Reviewed in the United States on May 30, 2024
Works fine
Keith W
5.0 out of 5 stars Combines the X and Y so that a 120 VAC generator can run a house.
Reviewed in the United States on April 1, 2024
This converter permits running a normal house panel from a 120 VAC portable generator. The hot from the generator is connected to both the X and Y wires feeding the 240 VAC cable to the inlet box. No, you don't get 240 VAC from it, but rather both "legs" are at the same 120 Volts. You will not be able to run any 240 Volt circuits in your house so make sure those breakers are off, if you are using an interlock, or your transfer switch's double-pole breakers are off when using this adapter. You will be able to have all of your 120 VAC circuits working (within generator limits, of course).

I purchased this for a friend that has a 120 VAC-only generator. While we haven't tried it yet, it does ohm out to be correctly wired. It seems sturdy and well made. I would have preferred a different color, but it isn't mine (lol), and as long as it works, he's happy.

I don't RV, so I can't speak to how well it works for that application.

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