i have a power conditioner. i looked inside and there is about a 40 lb class h transformer. i googled this class and didn't find any info on it. any ideas. i am just wondering i have seen 1-2 maybae an A but never one this big or class. i think it just means Heavy lol!.

 

Class B insulation = 150C-(40C+30C)= 80C rise
Class F insulation = 185C-(40C+30C)= 115C rise
Class H insulation = 220C-(40C+30C)= 150C rise

 

Class B insulation = 150C-(40C+30C)= 80C rise
Class F insulation = 185C-(40C+30C)= 115C rise
Class H insulation = 220C-(40C+30C)= 150C rise

Did you post this info from memory? I think you're off by one notch.

See: http://www.stancor.com/pdfs/Catalog_2006/Pg_g.pdf

 

School was many decades back- sorry

painpills and insomnia don't help memory either.

Still that's a good transformer, specs wise