This is a POWERTRON RV CONVERTER model PC 400 D
Rated at 40 Amps @ 12 VDC , removed from a 1986 PROWLER trailer . This is the old type with a transformer and relay not like the newer ones that are all electronics and very expensive to repair . The only thing that can go wrong in these older ones is the relay ( about $40 for a new one ) and it was replaced about 5 years ago .Excellent condition , I can hook it up if you want to test it before buying it .
Orleans(Where is this?)