An illustration of how this 50 amp 230/240v wiring works is to consider those of you with 50 amp rigs who have been confronted by a power pedestal containing only a 30amp outlet and alongside it a 20 amp outlet.
You have then been in the position of having to resort to running your rig with it's dual air cons, 1100 watt micro, washer/dryer on a vastly reduced supply of available amperage through one of those outlets.
Some of you will have undoubtedly mitigated this happenstance by purchasing one of those dual leg looms that serve to use BOTH the 30 amp AND the 20 amp outlets of the pedestal to supply a full 50 amp to your trailer up that 50 amp umbilical cord to your RV panel. This is done due to wiring codes requiring those two outlets be supplied by their own/separate breakers/fuses so that the loom you purchased can bond the neutrals, bond the grounds, supply the black line-in from the 30 amp outlet up the umbilical via the RED wire within the 50amp plug and supply the black line-in from the 20amp outlet in the pedestal up the black wire within the 50 amp umbilical, thereby giving you a full 50 amp supply from a power pedestal with no more than 30 and 20 amp outlets within.
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CAMP_MLMM wrote: The biggest problem that you will run into with trying to run the AC on a 15Amp circuit from your house/garage is that you are only supplying it with 120VAC. A 30Amp circuit is 230VAC which is what is required to operate the A/C unit. Glad you are considering installing a 30Amp plug to hook up to, that will allow you to run the A/C no problem
UH???????
Your 30 amp RV outlets are 120v one hot one neutral one ground with 10 gague wire. To have 240v you need two hot wires one neutral and one ground like what you have on a 50 amp RV cord.
I run both AC units on 30 amp power by turning the WH and frig to gas. 2007 Mobile Suites.
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webeopelas wrote: You are also mistaken on the 50 amp units. Yes there are two legs of 110 VAC into the camper, but there are no appliances in the camper that use both legs to get 230 VAC.
Each appliance is wired to one leg of the 50 amp or the other, but never both.
Everything within the camper runs on 110 or 12V DC.
Yes, everything in the RV runs on 120V AC or 12V DC. and Yes it is for sure 2 legs of 120V AC that supplies the RV. I guess it is a matter of terminology, in the electrical industry that type of supply is referred to as a 230V AC circuit. So, no I am NOT Mistaken on the 50 Amp units, I just used different terminology than you used for it.
STOP ! NO ! DO NOT DO THIS ! ! ! ! !
30 amp IS NOT a 230 volt circuit. This is a big mistake that a lot of RVers make when they park their RV in the driveway. A 30-amp circuit for a clothes dryer is 30-amp 230 volts. It is also 3 wire, a ground and TWO HOT lines. A 30-amp circuit for your RV is 30-amp 110 volts. It has a ground, one neutral and ONE HOT line.
A lot of RVers try to plug into a clothes dryer line and fry half the electronics in the RVs.
A 50-amp line is 230, one ground, one neutral and two hot lines; but nothing in the rv is connected to both hot lines. Either hot line crossed to neutral is 110 volts, cross both hot line (nothing in the rv does this) and you get 230 v.
NEVER EVER use a 30-amp 230v line in ! ! ! ! !
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PUT a 30amp line and breaker NOT just a 30 amp breaker!!
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webeopelas wrote: You are also mistaken on the 50 amp units. Yes there are two legs of 110 VAC into the camper, but there are no appliances in the camper that use both legs to get 230 VAC.
Each appliance is wired to one leg of the 50 amp or the other, but never both.
Everything within the camper runs on 110 or 12V DC.
Yes, everything in the RV runs on 120V AC or 12V DC. and Yes it is for sure 2 legs of 120V AC that supplies the RV. I guess it is a matter of terminology, in the electrical industry that type of supply is referred to as a 230V AC circuit. So, no I am NOT Mistaken on the 50 Amp units, I just used different terminology than you used for it.
STOP ! NO ! DO NOT DO THIS ! ! ! ! !
30 amp IS NOT a 230 volt circuit. This is a big mistake that a lot of RVers make when they park their RV in the driveway. A 30-amp circuit for a clothes dryer is 30-amp 230 volts. It is also 3 wire, a ground and TWO HOT lines. A 30-amp circuit for your RV is 30-amp 110 volts. It has a ground, one neutral and ONE HOT line.
A lot of RVers try to plug into a clothes dryer line and fry half the electronics in the RVs.
A 50-amp line is 230, one ground, one neutral and two hot lines; but nothing in the rv is connected to both hot lines. Either hot line crossed to neutral is 110 volts, cross both hot line (nothing in the rv does this) and you get 230 v.
NEVER EVER use a 30-amp 230v line in ! ! ! ! !
You will only get 230V if the two 50AMP 110V lines are out of phase.
CAMP_MLMM wrote: Yes, everything in the RV runs on 120V AC or 12V DC. and Yes it is for sure 2 legs of 120V AC that supplies the RV. I guess it is a matter of terminology, in the electrical industry that type of supply is referred to as a 230V AC circuit. So, no I am NOT Mistaken on the 50 Amp units, I just used different terminology than you used for it.
No it is not.
It is referred to as a 125/250v AC circuit. Two hots, neutral and a ground.
To call it a 250V (or your 230V) circuit indicates that it has no neutral. Two hots and a ground only.
I wired my parking space in CO for 30 amp service. I took ONE 30A breaker, #10 wire for the HOT, the GRD and the Neutral to feed the outlet. When I wanted to use the 50A service, it is TWO 50A breakers, TWO 110V HOT, ONE GRD and ONE Neutral to feed the 50A service.
Is is NOT a single 230V service rated for 50A. It IS two separate 110V 50A SINGLE services in one feed to the trailer. Use anything else and you fry the trailer.
If you have ANY doubts about the service and how it works, take the unit to a certified RV Electrician and have it inspected or have the work done there. Safety ALWAYS comes first!
Frank
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sirdrakejr wrote: I wired my parking space in CO for 30 amp service. I took ONE 30A breaker, #10 wire for the HOT, the GRD and the Neutral to feed the outlet. When I wanted to use the 50A service, it is TWO 50A breakers, TWO 110V HOT, ONE GRD and ONE Neutral to feed the 50A service.
Is is NOT a single 230V service rated for 50A. It IS two separate 110V 50A SINGLE services in one feed to the trailer. Use anything else and you fry the trailer.
If you have ANY doubts about the service and how it works, take the unit to a certified RV Electrician and have it inspected or have the work done there. Safety ALWAYS comes first!
Frank
Do you see two 50 amp breakers at the power pedistal in the parks? One 50 amp breaker is all that is required, it has two hot wires coming off of it and it is attached to two legs in the pannel.
My 50 amp service at my rv pad at home is wired exactly that way. If you want to use two 50 amp single breakers you can but you should tie them together so they both come on and off at the same time.
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