Questions about my converter - Fiberglass RV


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Old 07-15-2019, 12:49 PM   #1
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Questions about my converter

So as I'm cleaning, scrubbing and just generally getting to know my new-to-me Eco (Boler clone). I find the attached.

Now, I'm new to this world and have a fairly limited sense of RV wiring, but if I'm seeing what I think I'm seeing, that's the remnants of an old transformer-based converter, which has been gutted and bypassed. Does that seem right?

If so, that means any battery charging is up to me to do manually, right?

And at some point I'll probably want to put in a new converter/charger type thing, right? When I do, what do I want? Something like the PD 4045? or the 4135 (I can't figure out the difference) or something else?

And this thing is mounted under the sink... is that OK? It seems, um, less than ideal. Should there be some plastic shielding or something to keep stray water off?

So far, I've plugged it in and confirmed the AC started up. I haven't tested 12V systems yet. i'm a little wary until I get a better sense of what I'm dealing with.
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Old 07-15-2019, 02:02 PM   #2
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Similarly, I am trying to figure out the difference between the two as I need to install a power centre as well. Only difference is that I am starting from scratch as my Trillium never had a power centre to begin with. I may call the sales line at Progressive Dynamics tomorrow to see if they can be any help.

I'll be watching this forum with great interest.
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Old 07-15-2019, 05:21 PM   #3
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Have you used the label information to do an online search and see what it was?
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Old 07-15-2019, 06:31 PM   #4
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That sure looks like the outer box the PD has 6911 slid into. I just replaced mine with a PD4135 and put a battery on the tongue of the trailer.
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Old 07-15-2019, 06:55 PM   #5
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Charlie Iím not sure I care what it was since is pretty clearly gutted.

Bill, what made you go for the 4135?
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Old 07-15-2019, 09:13 PM   #6
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Quote:
Originally Posted by Baxter View Post
Charlie I’m not sure I care what it was since is pretty clearly gutted.

Bill, what made you go for the 4135?
The reviews on the WFCO versus reviews on the 4135. I read several that were replacing the WFCO with the 4135.

Price difference for me was about $15.


I saw several comments like this:
"I hope the 8735 is more reliable than the 8725 that I had. It failed twice before I replaced it with a Progressive Dynamics PD4045."

I talked to Randy at Best Converter and he did all he could to convince me to not buy a WFCO from him, claimed he had several fail on him. Well, his PD4135 price was higher than others, so I took his advice but bought my PD elsewhere.

In the end, with a really small price difference, I just went with the PD unit. The PD is also made in USA. WFCO is made in China.
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Old 07-15-2019, 09:19 PM   #7
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Ok, bout why the 4135 over the 4045? Still trying to understand the difference
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Old 07-15-2019, 09:28 PM   #8
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Easy! I did not need a 45 AMP unit. The 4135 is a 30AMP unit, original PD6911 in my Trillium was 15AMP. So I was already doubling the amperage. And meanwhile, I cut my lighting load by about 90% by going all LED. Lower load with double the capacity. That was enough.

And the 4045 costs a lot more.

I went from one 120V circuit and one 12V DC circuit to up to 5 - 120V circuits and 6 - 12V DC circuits. Thought that was plenty. 4045 maxes out at 7 and 12 respectively.

Right now, I am using 2 -12V circuits, and 3 - 120 V circuits (one is the main breaker, one is for the converter, and one is for my 120V outlets)....... So the PD4135 is not exactly being taxed.

What are you going to do on a small trailer with 45Amp AC? And then you have the power cord to your trailer. Are you planning to go 50AMP cord? That would be quite unusual on a molded FG trailer.


The PD4045 is also larger. Almost twice as deep, it would not fit in my location.


Why are you considering the 4045?
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Old 07-16-2019, 05:41 AM   #9
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Thanks, thatís what I needed to hear. I saw the 4045 recommended somewhere and couldnít sort out the difference aside from more amps. Youíve given me some great info. Thanks!

Now, about having this thing under the sink: is that ok?
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Old 07-16-2019, 06:23 AM   #10
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If it bothers you, put it somewhere else. Of course, you will need to rewire a lot of stuff and patch a big hole. Rather than patch a hole, I'd make a smaller cabinet door and put it over the hole.

My new one went in the same place as the old one, under the sink.
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Old 07-16-2019, 06:31 AM   #11
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To check all the differences between the PD 4135 and 4045, check the Progressive Dynamics website. The PD 4135 is a much more compact unit. Its only 11.25"W x 8"H x 3.8"D vs the PD4045 which is 12.28W x 8.875H x 7.25D. Also the PD4135 is about half the weight.

The smaller PD4135 makes more sense for a tiny 13 foot trailer.
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Old 07-16-2019, 08:20 AM   #12
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Remember one thing here guys, the amp rating of the converter is its DC output, in no case will these draw more than 10 amps on the AC side, probably below 5 amps.
You would not have to change your cord
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Old 07-16-2019, 08:29 AM   #13
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You are not correct. These are power centers, not just converters. The input on the PD4135 is 30 amps 120v AC, so a 15 amp cord is a bad idea.


Although the title of this thread says converter, I believe the OP misspoke as the picture looks just like a 6911 power center, which has both a 120v AC section and a converter feeding a 12v DC section.

And certainly the 4135 is a power center. 120v AC input to a 30amp breaker, then two more thick breakers, one feeding the converter and the other feeding 120v in the camper. You can go with thin breakers instead and install 6 total 120v breakers, one functioning as a 30 amp main.
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Old 07-16-2019, 09:01 AM   #14
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To add to what bill said, these Progressive Dynamics power centers will require adding a 30 amp power inlet on the side of the camper and obtaining a 30 amp power cord to plug into 30 amp campsite outlet.

I upgraded my Boler 17 from the original 15 amp power center to 30 amp shore power last year by installing the PD4135 and a 30 amp power inlet. I haven't gotten around to buying the 30 amp cord. Just use a 30 amp to 15 amp adapter with 15 amp power cord and plug into 15 amp shore power while I am renovating the camper.
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