[Al Skierkiewicz]

Chris,
The protection is not terribly accurate. I can't give you specific trip points as there are too many variables. The heat of the motor, the motor case, the ambient air temp and if the trip has occurred once, all play into the trip point for thermal cutouts. From experience, the FP likes to be running fast. It has an internal fan of sorts that helps cool the armature. Running at lower RPM doesn't get much air moving inside, raising the temperature.