Replacement Converter for Parallax Magnetek 7345RU 6345

We need to replace our converter. On the outside of the box it reads ..... model #7345RU RETROFIT for series 6300 model 6345 ONLY. On the inside of the box it reads, series 7300 model #7345 converter section fan thermaly controlled. Barcode R11430524. We dont understand what we specifically need to replace the one we have that shorted out

asked by: Joy