Problem solved, sort of! Jimbo put me on the right track. Mine is not a Sea Dog resettable, but a Bussman auto reset breaker. Amperage unknown since all markings missing. Found both Sea Dog and Bussman on Amazon. Ordered 30 and 50 amp in hopes of finding true rating in next few days. Relocating it to a dry location. Case on old one is cracked and nut on stud is seized up from rust and corrosion due to exposure to the elements. Another example of “what were they thinking?”. Will try to trace cables back to source to determine purpose or may trying calling Thor for info.
Thanks Jimbo for your time and help!
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