Normal temperature range of contactor/starter terminal lugs

Lugs are on the top end of what is considered an acceptable level for the temperature rise per UL508, Section 43, Temperature tests. Per table 43.1 the terminals can have a temp rise of 50C above 40C ambient temp on terminals marked 60/75C for supply wires and 65C above 40C ambient temp on terminals marked 75C for supply wires.

While we realized this can be a concern when compared to other devices and breakers, the contactor terminals are within the allowable temp rise per UL as determined from the above and do not indicate a problem with the contactor.