Can I Replace Old WFCO Or Progressive Dynamics Standalone Converter With New PowerMax Unit? AC to DC

Question

Question:

Can I replace my old WFCO or Progressive Dynamics standalone converter with a PowerMax unit? I buy and sell old campers and RVs and have a few that need electricals updated. thanks. Al

asked by: Alan

0

Expert Reply:

Yes, Alan - PowerMax converters are a direct replacement for several common standalone converter models. For example:

- # PM34VR 45 amp replaces WFCO WF-9845

- # PM94VR 55 amp replaces WFCO WF-9855

- # PM84VR 100 amp replaces WFCO WF-68100, Progressive Dynamics PD-9180, PD-9280, and Iota DLS-90IQ4

These are all converter-only units that feed a DC fuse panel, not integrated power centers. As long as your existing converter is a standalone unit and not built into a power center, the PowerMax equivalent will fill the same role.

If you’re unsure which style you have, feel free to tell me the model and I can help confirm it.

expert reply by: Andrew N

0

Greg

1/13/2026

Does this still apply if the converter is mounted inside a cabinet but separate from the fuse panel?

Andrew N.

1/13/2026

@Greg Yes, as long as it’s a standalone converter and not built into a power center, the same replacement logic applies. Being mounted in a cabinet doesn’t change how it functions electrically. I will say, some of them can be hard to get out if there's not much clearance!

Answer 1

Hey Ron, great question! The new PowerMax stand-alone converters like the 45A #PM34VR, 55A #PM94VR, 60A #PM44VR, and 100A #PM84VR give you three selectable charging modes so you’re not locked into one charging behavior. 3-stage mode factory default:…

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Answer 2

Yes, Linda - the PowerMax #PM34VR 45 amp is a proper replacement for the WFCO WF-9845 standalone converter. Both units (this new one and your old one) are designed to supply 12V power to a DC fuse panel and charge the battery when plugged into shore…

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Answer 3

In order to plug into a 50 amp power source at the campsite you will just need an adapter like you mentioned, such as the Mighty Cord #A10-5030FHVP. The female end will connect to your camper's 30-amp cord and the male end will connect to a 50…

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Answer 4

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 5

Hey Melanie. The reason you can't find a replacement for your GE ARC15AACBL2 15,000 btu air conditioner is because they phased them out. In 2025 all RV AC systems had to change over to a new coolant called R32. This was a EPA mandated decision.…

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Answer 6

Hey Tim welcome back! Your ARH15AACBL2 GE AC unit has the old 410a refrigerant in it so the GE Appliances item #GE64FR you were looking at isn't going to work as a replacement. The EPA mandated R32 refrigerant has been used in all new AC's…

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Answer 7

Since the pin weight of your camper is 2.1k, I recommend going with the LoadLifter 5000 opposed to the 7500. While technically there is not reason you couldn't use the 7500 kit, it really is not necessary for a camper like yours. Generally the…

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Answer 8

Yes, it will work. You'll just need to cut the Lance 6-pin connector out and rewire it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item #e99011. Here are the individual functions of that Lance 6-pin:…

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Answer 9

Hey Nathan, the PowerMax panels like the part #PM59VR that you referenced use 12- VAC residential style miniature circuit brakers. Typical brands are ITE/Siemens, Murray, Crouse-Hinds, and Thomas & Betts.

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Answer 10

Hey Brady, Brophy in the past has told us that the tie downs part #HSWB don't have a weight capacity but you would want to make sure you use them only with campers that were designed to fit the bed length of the truck. The turnbuckles part #TDHP…

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Answer 11

Hello Jeff, Sounds like you’ve got a big camper (about 4,000 lbs) on your 2024 F-350 dually, and when it’s loaded, the truck feels bouncy and sways a bit. That’s pretty common with heavy campers, especially if the suspension is still stock.…

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Answer 12

With a 2022 F350 short bed, hitting the top of the bed rails should not be an issue with most campers. Turning clearance however, will certainly be a factor. That is one advantage of the Andersen Ultimate hitch #AM3200, as it provides a 9"…

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Can I Replace Old WFCO Or Progressive Dynamics Standalone Converter With New PowerMax Unit? AC to DC

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