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Old 12-14-2015, 05:14 PM   #1
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Power converter/charger ????

I want to use 50 amp power at the camp ground so what do I need?
What is everone using?

Thank you
Rodney
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Old 12-14-2015, 10:40 PM   #2
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NEMA 14-50 style "50 amp electric range" cord end, some 4-conductor cord (maybe 6 gauge SOOW cable?), and a "sub-panel" circuit breaker box to split the incoming 50 amp 120/240 volt supply out into whatever combination of circuits your flavor of bus will want. That gets you hooked up to the campground.. but then what will you do with that much electricity? Electric range/oven, space or water heating, multiple air conditioners, mobile wood/metal workshop (yes we've seen that here)...?

There are some nice pre-built shore power cord assemblies commercially available as an alternative to DIY with the range plug and SOOW cable. They cost more but they're off-the-shelf and ready to use. Those might come with, or at least be designed to work with, a nice power inlet plug that could be flush-mounted in the exterior bus wall. That's an aesthetically attractive (though more costly) alternative to some kind of exterior hatch into which the permanently-connected DIY cord could be stowed.
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Old 12-14-2015, 11:10 PM   #3
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I looked into buying or building my shore power extension cord and it was actually cheaper to get one used on ebay. The pre built cord is nicely weather sealed too.
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Old 12-15-2015, 09:58 AM   #4
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Power Converter/charger

I guess I asked the wrong question. I want to use 50 amp service but I am building my bus what power converter/charger do I need to get?
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Old 12-15-2015, 12:12 PM   #5
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im not sure that those two items are related. i believe most power converters / chargers only need 15/20 amp service to run.

the more dc amps your power converter produces affects how fast it can charge batteries and the 12v dc load it can support. Bigger is better

50 amp service implies that you will have an AC breaker box in your bus that has 2-120v hot legs, a neutral, and a ground. 4 wires - your connection at the campground pedestal. that is what the others are talking about. the cord

the converter will only need 3 AC wires to power the bus 12volt dc system. 1 hot leg, 1 neutral, and 1 ground. it would be 1 circuit or breaker off of your 50 amp service panel

your AC needs dictate the size of panel you need. most household appliances needed while camping could run off 20 amp service, if you add an air conditioner, you need 30 amp service, running 2 air conditioners means you need 50 amp service.

this is what i have :
PD9180A Electronic Power Converter
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Old 12-15-2015, 02:14 PM   #6
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Many are confused by the difference between a converter and an inverter.

The converter converts 120v AC shore power to 12v DC and usually has a battery charger built in.

The inverter takes 12v DC power from the batteries and makes it into 120v AC.

Let us know how you intend to use your bus (boondocking/campground camping/full timing) and what appliances you want to install and we can point you in the right direction.
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Old 12-15-2015, 05:48 PM   #7
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This is what I am talking about ....RV Inteli-Power 4000 Series Power Center 45A Progressive Dynamics PD PD4045KV but I want 50 amps but I do not want to pay $500 for it.
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Old 12-15-2015, 08:22 PM   #8
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Quote:
Originally Posted by slager55 View Post
This is what I am talking about ....RV Inteli-Power 4000 Series Power Center 45A Progressive Dynamics PD PD4045KV but I want 50 amps but I do not want to pay $500 for it.
Got a link to that?

I'm just going to guess that that is a 50 amp battery charger and some fuses.
Here is an 80 amp charger for $250https://www.amazon.com/gp/aw/d/B000G...attery+charger

Add an extra $75 for a panel and breakers and presto!
As it turns out regular square D (snider electric in Canada) homline breakers are rated to 48 volts dc. They are much cheaper than purpose solar or marine breakers at $4 a piece.
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Old 12-15-2015, 08:46 PM   #9
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Ok, now we're getting somewhere. I have that same power panel and it has an AC to DC converter and a 45 amp DC three stage battery charger plus some slots for AC circuit breakers and DC fuses. Very nice unit. AC shore power input is 30 amps which will be much cheaper to install than 50 amp and more available at campgrounds.

When you say you want 50 amps in your bus we all assume you want a 50 amp AC service. A 50 amp DC battery charger and a 50 amp AC service are two very different things.

I see that panel on Amazon for $175 or so. Breakers and fuses aren't included so you'll have to buy those separately.

AC amps and DC amps aren't the same measure of power. An 120v AC amp = 120 watts while a 12v DC amp = 12 watts. You don't need 50 amp AC service to power a 50 amp DC battery charger. A 30 amp AC shore power connection is plenty and a 20 amp service will work too. Learning how to make AC and DC play together was the hardest part of my conversion.
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Old 12-15-2015, 09:50 PM   #10
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i installed a similar 12 rv fuse panel and a separate battery charger.

after i bought and installed the panel, i found my self bypassing the panel because how inconvenient it was. especially after it was installed in the wall.

if i were do-over, i'd use the same battery charger, but a smaller marine dc distribution fuse box like this:
BEP Marine ATC6W 6 Gang ATC Fuse Holder - Screw Terminal - BEP Marine ATC6W - Marine Fuse Holders - Fuse Blocks Holders & Fuses - Electrical Parts - Electrical - Boatersland Marine

that box you are looking at is huge!
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