Do you at least have 3 phase already? I can safely assume this runs off 3 phase not single phase. I know you said its a 125 amp breaker...What a draw! I hear this is the whip when totally dialed in. Seems confisuing so far
But, good luck!!!
Wonder if i understand Al's comment...that it has 3 sheets of glass in the lower middle column? wow!! Or maybe it was that there was 3 different panels available??