Adding an inverter inline

[schwyl]

Hey everyone.

I have a 2014 XLR 386X12HP. Im looking to install an inverter in my trailer. The trailer is 50amp split phase. Im looking to install it between the built-in ATS and the panel. Now to do this I need an inverter that is both split phase on the input and the output.

Does anyone have any recommendations on an inverter.


* Note yes Im aware of running AC and other things that are high power draws*

[Kenny kustom]

You will not be able to run it as a whole coach inverter.
I put a magnum msh3012 in my 50 a sabre.
I installed a sub panel, and went from there.
The issue is the pass through of the inverter. It will not allow all loads to run THROUGH it.

[Kenny kustom]

Sabre 36QBOK electrical.

http://www.forestriverforums.com/for...d.php?t=112420

[schwyl]

Ok so you used an undersized inverter and only have a 120v inverter not a 220 split phase.

[Kenny kustom]

Originally Posted by schwyl

Ok so you used an undersized inverter and only have a 120v inverter not a 220 split phase.

One of the biggest... good luck with your search.

[Kenny kustom]

I'm not quite sure you understand how the 50A service works in an RV...

[formerFR]

your rig does not already have an inverter?

[schwyl]

Originally Posted by Kenny kustom

I'm not quite sure you understand how the 50A service works in an RV...

two hots 1 neutral and a ground. two hot legs in a panel. pretty simple electrical.

[schwyl]

Originally Posted by formerFR

your rig does not already have an inverter?

Unfortunately these trailers are designed to be plugged in all the time.

[Kenny kustom]

Originally Posted by schwyl

two hots 1 neutral and a ground. two hot legs in a panel. pretty simple electrical.

Two hot at 50A 120v each.
No 220.

My " undersized" magnum powered everything I ever needed.

[schwyl]

Originally Posted by Kenny kustom

Two hot at 50A 120v each.
No 220.

My " undersized" magnum powered everything I ever needed.

*sigh* says the person who didn't vent their batteries. anyhow thanks for not contributing anything to the thread

[Kenny kustom]

Originally Posted by schwyl

*sigh* says the person who didn't vent their batteries. anyhow thanks for not contributing anything to the thread

Ha! The batts were vented, I just made the vent powered.

Good luck with your 220v !


Ps.. you are welcome to go see it in person at grove Rv, after the 18th, if you don't understand.

[formerFR]

Originally Posted by Kenny kustom

I'm not quite sure you understand how the 50A service works in an RV...

yes! 50a service is TWO 120v lines, NOT 220v.

also, if you are looking to add an inverter INLINE, do you have a generator? batteries?

[schwyl]

Originally Posted by formerFR

yes! 50a service is TWO 120v lines, NOT 220v.

also, if you are looking to add an inverter INLINE, do you have a generator? batteries?

yeah its 240.

5500 onan genny
8x 6v agm

[formerFR]

I think trying to use a 240v generator with your RV may be an issue that I can't help you on, unless the generator is able to power down to only 120v since both 50a legs are only that - and each leg is 'out of sync' with the other.
Each 120v leg carries certain breakers, while the other carries the balance of breakers in your breaker box. Usually the factories split these up by putting AC1 on leg1, AC2 on leg2, Fridge on leg1, WaterHeater on leg2, etc... to even things out since each leg carries 50amps of total power, which equals 100amps for the whole rig.

[325BH]

Originally Posted by formerFR

yes! 50a service is TWO 120v lines, NOT 220v.



also, if you are looking to add an inverter INLINE, do you have a generator? batteries?

**sigh** x100

50 amp service IS 120/240 volt, 50 amp service. Two "120v lines" IS 240v.

The fact that campers do not have any 240v devices and the fact that most/all camper main breaker panels are configured for just 120v devices does not change the 50 service.

If you measure the voltage in your breaker panel, you will see 240 volts across the left and right sides. That is, unless you are plugged into 30amp service. In that case you will see 0 volts across the left and right sides.

50amp "RV" service is regular 120/240v 50 amp service no different than your home.

Even the 50amp plug/receptacle is a standard not exclusive to RV use.

[formerFR]

sorry, but 50a RV service is simply TWO 120v out of sync(separate) lines going through a single connector plug/shore line to TWO different sides of a breaker panel. NEVER are they combined. NEVER do they touch. That is also why you have up to 100amps of power. If it were true 240v service, you would only have a max of 50amps of 240v.

note: a very FEW motorcoaches, usually on the expensive side, use a connection for the onboard DRYER and/or INDUCTION COOKTOP powered by 240v, but this is accomplished with the breaker box of the coach, NOT from any 240v incoming power line. No RV park has 240v power for their customers. And, if you are thinking that your household 30a Dryer plug is the same type of power that your RV uses, then you will have a big problem if you try to use it, it is 30a at 240v. A 30a RV plug is only 30amps at 120v.

[formerFR]

and I don't mean that the actual incoming service to the Power Pole is not 240v, but that the output from the 50a plug is not, it is two 50a 120v lines thru a double pole 50a breaker. So, you can't use the rv park to power any 240v items since their cords would not fit the outlet, unless your coach provides that provision itself thru the 50a power cord.

[NCBBA11043]

The 50 amp service at the pedestal consists of (4) wires. Two hot (
L1 and L2), one neutral (N), one ground (G). This is 120/240 volt. 120 volt between either hot and neutral, 240 volt between the two hots. This is how a 120/240 volt single phase circuit works. The use of the double pole breaker reinforces this. The breaker needs to break the circuit for both hot leads. No different than most service panels in your home. Your home is most likely 120/240 volt, as explained above. IF YOU WERE HANDY, you'd be able to the two hots (and ground for safety) from your RV electrical panel and create a 240 volt plug. As stated earlier, that circuit would be 240 volt, 50 amp.

[RJHuser]

Other than several thousand dollars for a 12 vdc to 120/240 vac split phase inverter (if you can find one, most high power inverters are 24 vdc, 36 vdc, or 48 vdc), you would need another trailer full of batteries to power it.

50 amp at 120 vac would require (negelecing losses) 500 amps at 12 vdc. So, you would need 1000 amps at 12 vdc to supply it. To get any amount of run time, as I said, your going to need a boat load of batteries.

Then the cableing, a minimum of 4 - 350 mcm or 3 - 500 mcm cables.

In other words, what you are suggesting is not realistic. Do as others have suggested, decide what you absolutely need to power from the battery, size an inverter to handle that load, and install a sub-panel to supply those loads.

Rick