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L/C Magnetics: Three Primary Tapped Transformer, 12 KVA, P/N 18852N

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How to Wire 277V & 480V, 1 & 3-Phase Main Service Panel?

Getting a 480v service installed, step down to 208 or 240?

L/C Magnetics: Three Primary Tapped Transformer, 12 KVA, P/N 18852N