Forum Discussion
DrewE
Sep 07, 2021Explorer II
If it hasn't been upgraded/replaced, it's probably some sort of fairly basic single-stage converter, quite possibly a ferroresonant unit. You may be able to hear it hum when connected to shore power, which could help in locating it to see exactly what you have. (Sometimes they're built into the same chassis as the power center with the AC breakers and DC fuses. Sometimes they're separate deck-mount units, which can be hidden almost anywhere.)
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