ECN Forum Forums General Topics of the Trade General Discussion Area How hot should motors run

I don't see any "rise" or hot spot allowance listed on there, merely a note that it's rated to 50C ambient temp, which is awfully hot, even for Florida. Class B insulation should not be exposed to temperatures over 130C (To clarify for anyone skimming: that's not 130F, but 130C). 140F operating temperature is not an issue; you could fry an egg on the motor, and it would still be OK.