How To Measure And Find Which WFCO AC/DC Fuse Box And Converter Is Needed For Travel Trailer
Published 02/24/2026
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Question:
I have a different size power center with ac and dc circuits and fuses and breakers. Which model converter power panel is best? thank you. Kevin
asked by: Kevin
Expert Reply:
Hey there Kevin, if you’re trying to avoid trimming or adding filler panels, matching orientation is the safest move, and it really comes down to checking the cutout size or the model converter you currently have.
If your current panel is vertical (taller than wide), the # WFC72GR 40A is a common size, fitting a cutout of 7 13/16" Wide x 11 5/16" tall x 7 3/8" deep.
If it’s more standard horizontal setup (wider than tall), then the # WF86FR 55A is a common size, fitting a cutout of 12-3/16" wide x 11" tall.
The key is measuring the rough opening before ordering. Most people prefer minimal modification, so choosing the closest match dimensionally is usually the best route. If you are fine with trimming or you are planning to fill in the hole anyways, then it comes down to what you like most and what amperage is best for your loads.
What converter did you have in there before and what's the DC charger output rated at in amps?
Product Page this Question was Asked From
WFCO Auto Detect RV Converter and AC/DC Distribution Panel - 12V - 55 Amp
- Power Converter
- Converter and AC/DC Panel
- Automatic Switch
- 12V
- 55 Amps
- AC to DC
- AGM
- Gel
- Lead Acid
- Lithium
- RV
- Multi-Stage Charge
- WFCO
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on Power Converter
Kevin
2/24/2026
I had the progressive dynamics PD4060k.