First, again, many thanks for the continued information. I have/am learning a heck of a lot as I work through this stuff.
Regarding what I was informed by the RV employee, I realize the pedestal power is AC and the battery system is DC, but as the lady who I spoke with has been in the parts section for at least 15 years, I thought she was knowledgeable and that there was some sort of relationship between the DC system amperage and the pedestal amperage. And I showed her the old breaker and told her it was connected to the battery...Go figure.
I checked the Converter and it appears it has eight gauge wire and from manufacturer details on this Converter (WF-8955) the output power (rated DC current) is 55A and max input current is 11A. Not sure which number is relevant, but if it is the output power, does that mean I need a 60 amp breaker?? Afidel, not sure this is the same as "charging circuit" and "charger rating" that you mentioned.
Thanks,
Marv