Hello Dean, the Mastervolt alternator temperature is 115° C after one one hour at 95 A and stay at 115°.
I put an alternator temperature sensor but it does not work very well because i put it on B+ output where the temperature rise 60° C. I can’t put the sensor at the warmest point. I mesured the inside temperature at 115.
All mesures with a Fluke infrared thermometer. Dominique