Jon does win the prize!!!!! Very good Jon. The 3 pole breaker was on but you are correct it is cooler. The hot breaker was a 40 amp with 13.2 amps for load at the time I took the photo. Millivolt drop across terminals was 168 mv. Last year there were 3 bad breakers in this control cabenit. IEC breakers yuk.
The control cabenit is for a coating machine for eyeglass lenses. It runs 24-7 and coats 50,000 lenses a week.
