What Inverter Needed For 50 Amp Service Rv

Dzl

I don't have any specific experience or advice, but you may want to piggyback on this related ongoing postal service

Dzl

Is your battery depository financial institution 12V?

Magnum sells a divide stage inverter (4kw) simply merely for 24v or 48v

Aims Also sells a split phase inverter, but I believe its too but 24v or 48v input

Your best bet might be as @Jcain says. Get ii inverters that can be combined for split phase. The Victron Multiplus would exist one option.

snoobler · Jul 20, 2020

I have some other question. My plan and so far is to wire two 12V 100W solar panels in serial for approximately 24 volt. And then the 3 pairs in parallel to the Victron MPPT 150 /sixty smart controller. From reading Will's volume and watching his videos, I assume this is the best way to go??
Thank yous, MattB ?? My son might employ that?

Not necessarily. The Victron tin handle up to 150V panel Voc, so you could probably string 6 of those in series before you got anywhere near that limit; even so your maximum efficiency is probably in the eighteen-24V range. If you have a long cable run, higher voltage input from the panels is a footling more efficient due to less losses in the wire, so 3S2P might be a better selection.

Also, have you lot always plugged your 50A into 30A service with an adapter?

Dzl

I have another question. My plan so far is to wire two 12V 100W solar panels in series for approximately 24 volt. And and so the 3 pairs in parallel to the Victron MPPT 150 /60 smart controller. From reading Will's book and watching his videos, I assume this is the best way to go??
Thank you lot, MattB ?? My son might utilize that?

Victron actually gives recommendations in the accuse controller transmission. In a nut shell, they recommend nominal a PV array nominal voltage that is 2x the bombardment nominal voltage. For case if you have a 12v battery bank they reccomend 72 cells in series (i.due east. '24v' nominal), a 24v bombardment bank 144 cells in serial ('48v' nominal).

I also concur with @snoobler the virtually optimal arrangement will depend on your situation, if long wire runs are an upshot, maximize series, if not, 2S3P might be the best choice, especially if partial shade is a bigger concern than wiring.

snoobler

I'm asserting that there is ZERO need to put 240V into a 50A plug UNLESS you have a 240V detail in the rig. 30A service is 120V. When you plug into 30A service via a pigtail or adapter, L1 and L2 are jumpered, then you take zip V between them, only each leg is still getting 110V relative to neutral.

I currently power 2X RVs with 50A plugs via a splitter that splits each leg to the 30A plug. Both RVs have full functionality of all systems. I'thousand running a Victron 5K/48 Quattro. I have L1 and L2 jumpered at the power pedestal.

CascadeOffGrid

You have several options to consider with this state of affairs.

1. You can buy 2 inverters and configure them to output in a separate phase configuration. You lot volition have some limitations when running on your generator because your generator is probably non split up phase. At that place is some rewiring to get the maximum output out of your generator.

2. You can purchase an autotransformer then that a single 120V inverter is converted into 240V split phase. Victron makes one of these.

3. AM Solar makes a stage selector. Information technology is specifically designed to solve the problem of a 50A 240V split stage input feeding a single inverter. I have yet to personally install one but you tin can read up on their website.
AM Solar Smart Phase Selector

snoobler

When you plug into 30A service with a pigtail, hot1 and hot2 are mutual/shorted:

That'south why you lot don't lose one-half the devices in your rig that are on the Hot2 excursion.

Also, a 50A RV plug can handle 50A PER LINE, so you lot're talking nearly 12kW. I don't see everyone trying to provide 12kW to their off-grid RV power situation, and then the assertion that @Elevation is trying to practice this doesn't add upwards. Why would he try to provide 12kW of off-grid solar power to a rig with a 5kW generator?

50A vs 30A is the ability source limitation. Not a property of the RV.

A Unmarried 110V inverter (Victron 5K/24) of the desired power is all that's needed to ability an RV with a 50A plug. From a toll perspective, the but reason you should provide 240V to it is if you have 240V devices/appliances.

Once again, I'grand running 2 50A plug RVs (33ft fifth bike, 33ft motorhome) off a single Victron 4K/48. I'm but doing what every 50-30A pigtail adapter is doing.

CascadeOffGrid

I am assuming that you rewired your RV to only use one of the legs of the 50A shore power connection when you lot plug in. Is that correct? That would be the just manner that your Multiplus 4k/48 would be able to supply everything in your RV.

snoobler

mapguy525 You can come across how the Hot1 and Hot2 are jumpered with a scarlet pointer. Both become the aforementioned phase 120V with 0V to each other just BOTH legs accept 120V to neutral.

CascadeOffGrid it's clear you accept no working knowledge of how RV power systems work.

Do y'all understand than when you don't have 50A power available and use a 50A to 30A adapter (which in merely 120V) to plug your 50A RV in to 30A power, you don't lose one-half of your RV's electrical organization, right?

THERE IS NO NEED TO POWER A 50A RV WITH 240VAC Power UNLESS YOU Have 240VAC DEVICES. YOU SIMPLY Adhere YOUR 120V INVERTER LINE OUTPUT TO BOTH L1 AND L2 ON THE 50A Circuit, AND Y'all HAVE FULL 120V AVAILABLE TO THE Unabridged RV.

CascadeOffGrid

mapguy525 You can encounter how the Hot1 and Hot2 are jumpered with a red pointer. Both get the aforementioned phase 120V with 0V to each other just BOTH legs have 120V to neutral.

CascadeOffGrid information technology'due south articulate you take no working noesis of how RV power systems piece of work.

Do you understand than when you don't have 50A ability bachelor and utilise a 50A to 30A adapter (which in but 120V) to plug your 50A RV in to 30A power, you don't lose one-half of your RV'due south electrical organization, right?

THERE IS NO Need TO POWER A 50A RV WITH 240VAC POWER UNLESS Y'all Accept 240VAC DEVICES. YOU Just ATTACH YOUR 120V INVERTER LINE OUTPUT TO BOTH L1 AND L2 ON THE 50A Circuit, AND You Have FULL 120V Bachelor TO THE Entire RV.

I'k sorry to have upset you. I wire RVs for a living so I accept quite a bit of knowledge of how RVs are wired and how shore ability works. I call back I am but asking a different question. Perhaps you accept come up with a solution that might help me in the future...that the point of this forum correct? Just trying to understand here...

I understand how a 50A to 30A power adapter works and empathise how information technology feeds the unabridged RV. I also sympathize that you exercise not need 240V. What I was stating is that a 50A RV park is 240V split phase which is made upward of two 120V legs of power. What I don't sympathise is what happens if you hooked your RV up to a 50A shore power with the mode you have it wired.

snoobler

You lot oasis't upset me.

My RV wiring is stock. If I plug into a 50A receptacle, I become power.

Per my previous post:

"I have L1 and L2 jumpered at the power pedestal."

Thus my 50A receptacle is not wired to spec. If you plug a 50A RV cord into it, it's like you take a 30A adapter in the stop of your plug.

My proposal definitely requires a ways of isolating the inverter from shore power or genny when needed, only that is likely WAY cheaper than a second inverter, and so I should add together that qualification to my assertion for clarity. A elementary solution, bold the rig has an appropriate transfer switch, is to literally feed a 50A receptacle with L1 and L2 jumpered with the 120V inverter and plug the RV umbilical into that plug.