J jim dungar Moderator Staff member Location Wisconsin Occupation PE (Retired) - Power Systems May 28, 2011 #21 Finite10 said: I've seen breaker lugs only rated for 40 degrees C. What a waste of ampacity. Click to expand... That is the ambient temperature rating of the breaker used during its calibration testing, not its lug temperature.
Finite10 said: I've seen breaker lugs only rated for 40 degrees C. What a waste of ampacity. Click to expand... That is the ambient temperature rating of the breaker used during its calibration testing, not its lug temperature.
