Nope, makes no sense at all. RV 50 amp is 120/240 volts. two legs at 50 amps each. 180 degrees out of phase. It is called split phase. There is nothing 25 amps about it. if one leg goes over 50 amps both legs go dead. No Electrician in his life ever said 100 amps available.
Please explain. I'm not a retired electrician but if I have 2 legs carrying 50A through a breaker(s) allowing that current, how then is it not available? Certainly not the discussion I recently had with a master electrician when installing my 50A RV plug.
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Danny and Susan, wife of 56 years
2019 Ram 3500 Laramie CC SWB SB 6.4 4x4 4.10
2020 Montana High Country 331RL
Please explain. I'm not a retired electrician but if I have 2 legs carrying 50A through a breaker(s) allowing that current, how then is it not available? Certainly not the discussion I recently had with a master electrician when installing my 50A RV plug.
not much to explain. you have 50 amps available. 50 amps on each leg. They are not additive. If one goes over 50 amps then both will trip. Ask you electrician to explain it to you.
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2011 Keystone Sprinter 323BHS. Retired Master Electrician. All Motor Homes are RV's. All RV's are not Motor Homes.
OK....50 + 50 = how many total amps available to the RV??
Edit: I fully understand what you are saying but it's misleading.
"you have 50 amps available" is incorrect when referencing the total amperage available to the RV. Exceed ONE of the 50A legs (of which 2 are available) and you will lose both legs, until then you will definitely be able to use over 50A. Am I wrong?
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Danny and Susan, wife of 56 years
2019 Ram 3500 Laramie CC SWB SB 6.4 4x4 4.10
2020 Montana High Country 331RL
OK....50 + 50 = how many total amps available to the RV??
Edit: I fully understand what you are saying but it's misleading.
50. I am a 50-year master electrician. I know what I am talking about. If you run 1 leg over 50 amps then you will have NO amps available. If you want to talk electric then learn the language.
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2011 Keystone Sprinter 323BHS. Retired Master Electrician. All Motor Homes are RV's. All RV's are not Motor Homes.
50. I am a 50-year master electrician. I know what I am talking about. If you run 1 leg over 50 amps then you will have NO amps available. If you want to talk electric then learn the language.
Two 50 amp breakers don't equal 50 amps, each leg has 50 amps. If they are paired then both will trip but it doesn't change the fact that both legs carry 50 amps.
Not a 50 year master electrician but I have spec'd many a electic motor over the past 50 years
50. I am a 50-year master electrician. I know what I am talking about. If you run 1 leg over 50 amps then you will have NO amps available. If you want to talk electric then learn the language.
You aren't addressing the question or the reality. 50 + 50 on each leg provides 100A to the RV. IF, the key is IF, you exceed 50A on one leg, yes, the breaker will trip and you lose both legs....BUT if you don't exceed that amperage on either leg you have the availability of up to 100A to the RV - if that is incorrect please explain. I don't need anyone to explain that to me. I know a "bit" about "electric".....so I'm thinking you need to articulate yourself better so others can understand what you are trying to say vs misleading those that have no idea.
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Danny and Susan, wife of 56 years
2019 Ram 3500 Laramie CC SWB SB 6.4 4x4 4.10
2020 Montana High Country 331RL
50. I am a 50-year master electrician. I know what I am talking about. If you run 1 leg over 50 amps then you will have NO amps available. If you want to talk electric then learn the language.
If you have two beers, sitting side by side, still in the plastic "6 pack holder" and you drink one of those beers, you still have one left. It doesn't "magically disappear" because the other one is gone...
Same with two legs of 120 VAC with a "paired 50 amp breaker". You have 240 VAC potential @ 50 amps, on two legs, for a 100 amp potential between the legs. In other words, you have 50 amps on each leg which gives you a 100 amp potential. If you go over 50 amps on one leg, it will "disrupt output to both legs" (paired breaker). That said, if you draw 49 amps from one leg and 49 amps from the other leg, you are "using 98 amps from two equally divided 50 amp legs. In this example, you are using 98 amps of a 100 potential, not a 49 amp load that's about to open the circuit breaker.
Two 50 amp breakers don't equal 50 amps, each leg has 50 amps. If they are paired then both will trip but it doesn't change the fact that both legs carry 50 amps.
Not a 50 year master electrician but I have spec'd many a electic motor over the past 50 years
I never said they didn't. Each leg does in fact have the ability to carry 50 amps. The handles are tied together. If one leg goes over 50 amp the hole breaker assembly will trip and you will have no amps. No Real Electrician, in his lifetime, ever made the statement, "100 amps available" on a 50 amp 240-volt circuit. I know that you know what that really means but the Newbie RV'er does not. He thinks his RV is good for 100 amps because he read it on the internet! He knows nothing about split phase service delivered to his RV in the form of 240 volts with a shared neutral.
When you spec an X HP motor at 240 volts you tell the customer that it draws X amount of amps Right? Let's just call it 50 amps. Do you tell him that That motor can handle 100 amps?. You would be surprised at how many RV'ers tell me that their MH does not have 240 volts at the main breaker. They say "I have two 120 volt legs, I do not have 240 volts". They don't make special electricity rules just for RV's. I wish we didn't have to install a 2 pole breaker in an RV service but they do so for safety because of newbies and DIY'ers.
Those of you who do not agree with my stand on this subject can read skip over my posts. It is not gonna change.
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2011 Keystone Sprinter 323BHS. Retired Master Electrician. All Motor Homes are RV's. All RV's are not Motor Homes.
You aren't addressing the question or the reality. 50 + 50 on each leg provides 100A to the RV. IF, the key is IF, you exceed 50A on one leg, yes, the breaker will trip and you lose both legs....BUT if you don't exceed that amperage on either leg you have the availability of up to 100A to the RV - if that is incorrect please explain. I don't need anyone to explain that to me. I know a "bit" about "electric".....so I'm thinking you need to articulate yourself better so others can understand what you are trying to say vs misleading those that have no idea.
And you don't think that the newbie that says "I don't have 240 volts in my RV. I have two 120 volt legs" has not been misled?. How many site team members are going to continue misleading the newbies and DIYers?
The term 100 amps available on a 50 amp service does not exist outside of the RV world.
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2011 Keystone Sprinter 323BHS. Retired Master Electrician. All Motor Homes are RV's. All RV's are not Motor Homes.
I never said they didn't. Each leg does in fact have the ability to carry 50 amps. The handles are tied together. If one leg goes over 50 amp the hole breaker assembly will trip and you will have no amps. No Real Electrician, in his lifetime, ever made the statement, "100 amps available" on a 50 amp 240-volt circuit. I know that you know what that really means but the Newbie RV'er does not. He thinks his RV is good for 100 amps because he read it on the internet! He knows nothing about split phase service delivered to his RV in the form of 240 volts with a shared neutral.
When you spec an X HP motor at 240 volts you tell the customer that it draws X amount of amps Right? Let's just call it 50 amps. Do you tell him that That motor can handle 100 amps?. You would be surprised at how many RV'ers tell me that their MH does not have 240 volts at the main breaker. They say "I have two 120 volt legs, I do not have 240 volts". They don't make special electricity rules just for RV's. I wish we didn't have to install a 2 pole breaker in an RV service but they do so for safety because of newbies and DIY'ers.
Those of you who do not agree with my stand on this subject can read skip over my posts. It is not gonna change.
It is 240 volts split into two legs of 120 volts... there is not a single plug in the RV which will power a 240 volt piece of equipment... So, therefore it is (as far as plugs inside the RV 120 volts..
Now... each leg of the 120 volts will carry 50 amps and there are two of them; so in total and in a perfect world a person could have 50 amps of draw on one leg and 50 amps of draw on the other leg...
So, one could plug in 100 amps of draw as long as it was equally divided between the two 50 amp legs..
It is 240 volts split into two legs of 120 volts... there is not a single plug in the RV which will power a 240 volt piece of equipment... So, therefore it is (as far as plugs inside the RV 120 volts..
Now... each leg of the 120 volts will carry 50 amps and there are two of them; so in total and in a perfect world a person could have 50 amps of draw on one leg and 50 amps of draw on the other leg...
So, one could plug in 100 amps of draw as long as it was equally divided between the two 50 amp legs..
Exacty how all 240 works.Just like your 240 volt 50 amp range plug in your house. Your 30 amp 240 dryer plug in your house. Two 120 volt split phase legs.
Care to explain 240-volt induction cooktops and 240-volt household driers in Hi dollar Motor Homes?
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2011 Keystone Sprinter 323BHS. Retired Master Electrician. All Motor Homes are RV's. All RV's are not Motor Homes.
Exacty how all 240 works.Just like your 240 volt 50 amp range plug in your house. Your 30 amp 240 dryer plug in your house. Two 120 volt split phase legs.
Care to explain 240-volt induction cooktops and 240-volt household driers in Hi dollar Motor Homes?
We are talking about Keystone RVs in which I'm not aware of any 240V application.
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Danny and Susan, wife of 56 years
2019 Ram 3500 Laramie CC SWB SB 6.4 4x4 4.10
2020 Montana High Country 331RL
I have a 2019 Bullet with 30 Amp hookup. If I use a 30 to 50 adapter when I hook up to a 50 amp hookup, is there any advantage? Will I have more Amps available to run the AC, TV, Microwave and coffee maker all at the same time? Or do I get 30 amps going into the trailer because that's what it is?
Any advice is appreciated.
I'll try to get the train back on the tracks. I listed the advantage of using a 50 to 30 amp dogbane as it relates to the condition of the pedestal connections. To directly answer your question on more available amps the simple answer is no. The breakers in your trailer distribution center will limit the amperage to 30 amps at 120 vac overall and each branch circuit will limit the amperage to the respective breaker, i.e. if the water heater is on a 15 amp breaker then THAT circuit will be limited by the breaker to 15 amps.
Hope that helps.
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Marshall
2012 Laredo 303 TG
2010 F250 LT Super Cab, long bed, 4X4, 6.4 Turbo Diesel
Can you identify which high end MH uses 240V dryer or induction cooktop?
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2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
Can you identify which high end MH uses 240V dryer or induction cooktop?
DRV 5er, Newmar Essex, King Aire, come to mind real quick.
Here is a picture of the main breaker panel. Note the main breaker location on the left side of the panel and not in the middle as most RV's are. This allows for opposing phases. MAIN AB AB AB. Instead of AAAAAA MAIN BBBBBB
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2011 Keystone Sprinter 323BHS. Retired Master Electrician. All Motor Homes are RV's. All RV's are not Motor Homes.
Yep, but that's exactly how your house is wired. You have a 200 amp "main breaker at the top of your house distribution panel". That is "hot wired to the "upright pipe on your roof" and that is hot wired to the 2000+ amp wiring that runs either from pole to pole or underground to the nearest utility company transformer that is protected by 750 amp (estimated) fuses. There's no "second line of defense" in your home and AFAIK, none required by any code.
If there's "no concern" for a $300K house full of memories and family members, why would there be more concern for a trailer's electrical system that's rated to carry 1/6th as much electrical load ???
Actually, the residential example given, does have 2 tiered protection. Each branch circuit has a breaker specific to the wire size connected to it, as well as the main 200 amp breaker upstream. The buss bars that link the 200 amp main breaker to the individual branch circuit breakers, are sized appropriately sized to handle a fault. As for the utility's wire feeding the residence, in my locale, Salt River Project requires a 3/0 copper wire on my side of the meter and they bring in a 1/0 aluminum to it. If a catastrophic fault occurs, I'm confident their cheesy aluminum feeders will be toast first. The service entrance section is built to contain such a fault.
I spent some time breaking this subject down into simpler examples and built on the concepts up to the typical 50 amp RV. Maybe this will help.
The last schematic makes a lot of sense except for that balanced loading. The breaker is double pole where if one side overamps, the other side is physically connected to also trip.
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on a 50 amp 240-volt circuit. I know that you know what that really means but the Newbie RV'er does not. He thinks his RV is good for 100 amps because he read it on the internet! He knows nothing about split phase service delivered to his RV in the form of 240 volts with a shared neutral.
They don't make special electricity rules just for RV's. I wish we didn't have to install a 2 pole breaker in an RV service but they do so for safety because of newbies and DIY'ers.
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