What Do I Need to Add 30 Amp Shore Power for a Cargo Trailer Conversion?
Updated 07/13/2026 | Published 07/08/2026
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Question:
I want to convert a cargo trailer for occasional camping use as well as the cargo trailer. I think I need a 120 inlet. transfer switch and distribution box with converter. is there like a package that I can purchase or do I have to get all seperatley? can someone assist in the right size components please. Thank you
asked by: Bruce M
Expert Reply:
Happy to help Bruce,
For a trailer conversion, a solid option is the WFCO 40A Auto-Detect Power Center # WFC72GR, it combines the 120V breaker panel, 12V fuse panel and converter/charger into one unit and supports both lead-acid and lithium batteries.
To complete the setup, you'll also need:
30 Amp Power Inlet # A10-30INBKVP
30 Amp Shore Power Cord # A10-3025EDBK
If you'll only be plugging into campground power, you won't need a transfer switch. Those are only necessary when switching between shore power and an onboard generator.
What appliances are you planning to run?
Expert Reply:
Happy to help Bruce,
For a trailer conversion, a solid option is the WFCO 40A Auto-Detect Power Center # WFC72GR, it combines the 120V breaker panel, 12V fuse panel and converter/charger into one unit and supports both lead-acid and lithium batteries.
To complete the setup, you'll also need:
30 Amp Power Inlet # A10-30INBKVP
30 Amp Shore Power Cord # A10-3025EDBK
If you'll only be plugging into campground power, you won't need a transfer switch. Those are only necessary when switching between shore power and an onboard generator.
What appliances are you planning to run?
Product Page this Question was Asked From
WFCO 40A Auto-Detect RV Power Center with 30A Main and 13 DC Circuits
- Power Converter
- Converter and AC/DC Panel
- Automatic Switch
- 12V
- 40 Amps
- AC to DC
- AGM
- Gel
- Lead Acid
- Lithium
- RV
- Multi-Stage Charge
- WFCO
more information >
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Bruce M.
7/13/2026
Part of the question was that we intend on using our solar, and gas generators for boondocking. Is it best to run the 120 volt items( fridge mostly) off of the generators or to install an inverter? Is there any schematics for such set ups?