Hi guys,
My questions are: How do I know if the contactors used in the motor starter is properly matched to the load? Could an under-rated contactor aggravate the situation of voltage imbalance at the contactor terminals thereby causing yet higher current imbalance to the motor?
Let me...
I was called to try and figure out why a contactor in an elevator panel keeps burning out. This was the second time it happened. Although I suspect the contactor was under-rated I want to make sure. I got this on the partially burned nameplate of the sprecher+schuh brand contactor:
AC-1...
AC-3...