30 vrs. 50 amp hook-up

[Frank G]

Saturday, when we picked up our new Laredo 325RL it was plugged into a 30amp receptacle with the normal 50/30 dogbone. The 5er is set up for 50 amp service.

The main TV was on and demonstrated to us. All good. Got home and plugged into a 20amp outlet so we could run the lights and TV, nothing more. No power to the TV receptacle and many other receptacles. To me this is understandable as 30 amp service is single phase and 50 amp service is dual phase and the 2 circuits are separated in the panel. (WF 8930/50). Everything was checked with a plug in circuit tester and everything is wired properly.

I am curious how we had TV at the dealer. What happens when you have to take a 30 amp site? Will call in the morning. Any ideas.

[cardinal96ss]

Puzzling. Did the TV breaker pop? Try resetting it.

[sourdough]

What kind of connection do you have to the 20 amp? A regular 120v/50 amp RV adapter or??

A 50/30 amp adapter splits the AC to both legs of the 50 amp plug so "stuff" works. Sounds like the hookup you have does not do that.

[Frank G]

Originally Posted by sourdough

What kind of connection do you have to the 20 amp? A regular 120v/50 amp RV adapter or??

A 50/30 amp adapter splits the AC to both legs of the 50 amp plug so "stuff" works. Sounds like the hookup you have does not do that.

The 50/30 adapter is used and plugged into the 30/20 adapter that plugs into the house receptacle.

Thank You for your knowledge, I will check this out tomorrow.

[PARAPTOR]

Originally Posted by Frank G

The 50/30 adapter is used and plugged into the 30/20 adapter that plugs into the house receptacle.

Thank You for your knowledge, I will check this out tomorrow.

If you used the same cables used at the dealer, assume they were yours, then unplug the 30 amp cable from there 30 amp receptacle and put the 30 to 20 adapter on that end. Then your 20 amp extension cord goes on there. Done

20 to 30 amp adapter is merely converting a 30 amp plug layout to a 20 amp plug layout, now that 30 to 50 amp doggone is taking the single leg and applying it to both legs of the 50 amp cable going into you 50 amp rig.

So if you did this not sure why it is not working for you. Should be feeding both legs in your rig

[PARAPTOR]

X2 .. as stated your need a cable or combination of cables that is going to take your 20 amp source and have it applied to both legs of the 50 amp service into your 50 amp rig. However you have it connected now, you are only feeding one leg of he 50 amp service into your rig. Basically you only feeding half the 110v breakers in you rig.

[xrated]

Originally Posted by Frank G

Saturday, when we picked up our new Laredo 325RL it was plugged into a 30amp receptacle with the normal 50/30 dogbone. The 5er is set up for 50 amp service.

The main TV was on and demonstrated to us. All good. Got home and plugged into a 20amp outlet so we could run the lights and TV, nothing more. No power to the TV receptacle and many other receptacles. To me this is understandable as 30 amp service is single phase and 50 amp service is dual phase and the 2 circuits are separated in the panel. (WF 8930/50). Everything was checked with a plug in circuit tester and everything is wired properly.

I am curious how we had TV at the dealer. What happens when you have to take a 30 amp site? Will call in the morning. Any ideas.

Plug your cord into a different outlet.....and keep trying different outlets until you find one that is on the same side of the line as your TV etc.

[sourdough]

It sounds like your setup should work but...... If you have access to a place that sells them just get a 120v/50A adapter and use that. I use a 12 ga. 25' extension cord and plug it into the 50A pigtail that plugs into the trailer and all is well.....unless I try to pull more than 20A

[JRTJH]

Some dealerships use a "service department" power cable (so the customer's new cable stays clean and stowed). If your dealership did this, you could have a faulty power cable. One other possibility (if there's no power to anything in your trailer) is that your home outlet that you're plugging into is wired backwards and you're not getting power to the "hot side" of your trailer electrical breaker box....

[sourdough]

Your going from a 20A (120VAC) to 30A adapter....where is that located? Then you're going from the 30A adapter to a 50A...where is that located? In theory you should be getting 120v from the 120v plug and it runs on one conductor through the 30A adapter then splits to both 120V legs of the 50A plug inside the 30/50 adapter. Take a meter and read what should be the 2 hot legs in the 50A plug. I'm thinking you don't have AC on one of them. Maybe a bad 30/50 adapter? Here is a link that shows where your hot legs should be:

https://www.google.com/search?q=wiri...w2tXNmzX0mBqM:

[Mikendebbie]

I have 330RL (travel trailer version of your rig). When we brought ours home and plugged in to our 30 amp outlet - Nothing worked in the entertainment slide out. Turned out to be the circuit was tripped on the outlet inside the outdoor kitchen. Reset the button and all is good. Be sure to check that outlet. This has happened a couple of times since. Not sure why it trips.

[PARAPTOR]

The majority of posts have identified the electrical components and how they need to be connected to power a 50 amp rig from a extension cord connecting the rig to a house receptacle. The OP is requested to inform us as to exactly what electrical cables/adapters he is currently using.

[PARAPTOR]

Originally Posted by Mikendebbie

I have 330RL (travel trailer version of your rig). When we brought ours home and plugged in to our 30 amp outlet - Nothing worked in the entertainment slide out. Turned out to be the circuit was tripped on the outlet inside the outdoor kitchen. Reset the button and all is good. Be sure to check that outlet. This has happened a couple of times since. Not sure why it trips.

That GFI breaker that you are resetting is designed to be sensitive to electrical faults. That GFI also feeds/protects other plugs down stream from it. I would see if you can relate the tripping to other occurrences such as rain (moisture I'm outside plug), that side movement (possible power cable rubbing on frame), use of a faulty device/extension cable, etc

[Outback 325BH]

Having regular receptacles downstream is the correct way to install. More than one GFCI on the same circuit is a waste of money and serves no purpose... although doesn't hurt anything.


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[Frank G]

Originally Posted by Outback 325BH

Having regular receptacles downstream is the correct way to install. More than one GFCI on the same circuit is a waste of money and serves no purpose... although doesn't hurt anything.


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I thoroughly understand this is the correct way to install. The point I was trying to make was the number of downstream receptacles. In the 325RL it cover the receptacles in the following area's. Bathroom, Kitchen, Island, Living area including the TV & Fireplace, Outside Kitchen including the refrigerator and TV. When you through in the everyday living items like curling Irons, Instant Pot, Toaster and Coffee Pot that circuit might be pushed to it's limit.

[sourdough]

Originally Posted by Frank G

I thoroughly understand this is the correct way to install. The point I was trying to make was the number of downstream receptacles. In the 325RL it cover the receptacles in the following area's. Bathroom, Kitchen, Island, Living area including the TV & Fireplace, Outside Kitchen including the refrigerator and TV. When you through in the everyday living items like curling Irons, Instant Pot, Toaster and Coffee Pot that circuit might be pushed to it's limit.

I've never seen a trailer being wired but that sure sounds like a lot to put on one circuit. How many AC breakers do you have?

Just went to look at mine and I've got 10 breakers (15 & 20 amp - FAR more than my 50A service could carry). TV, fireplace, AC, microwave etc. have individual circuits. Then the living room, GFCI, bedroom, kitchen also have individual circuits. I have not flipped them to check exactly what is what but yours sure doesn't sound like they have broken them out like that.

[Outback 325BH]

Originally Posted by Frank G

I thoroughly understand this is the correct way to install. The point I was trying to make was the number of downstream receptacles. In the 325RL it cover the receptacles in the following area's. Bathroom, Kitchen, Island, Living area including the TV & Fireplace, Outside Kitchen including the refrigerator and TV. When you through in the everyday living items like curling Irons, Instant Pot, Toaster and Coffee Pot that circuit might be pushed to it's limit.

For sure, that is a lot of receptacles on one circuit. The GFCI discussion kind of clouds that issue but is not relevant.

However...
If on a 20 amp circuit, I would make sure the GFCI is a 20 amp GFCI. Unlike the standard practice of pig-tailing regular receptacles (which prevents total downstream current from flowing through the receptacle -- don't know if your RV uses that practice or not), GFCI's have to have all current flow through them to provide downstream protection. This means you should have a 20 amp GFCI on a 20 amp circuit. Mine does not and I bet yours doesn't either.

Given how many receptacles you have on your circuit, you'll want to be able to use as much of that 20 amps as you can. A 15amp GFCI might run into problems if you try to pull 20 amps through it. I have not investigated the potential issues, but I know there are both 15 and 20 amp GFCI's available. I have them in my home... and are wired the exact same.

Just a recommendation to maximize your circuit.


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[ctbruce]

Chalk this one up in the WIN column....

Chip Bruce, RPh
Kansas City, MO
2016 Fuzion Impact 312
2017 3500HD Silverado LTZ