The BMG standard series of three-phase distribution transformer includes input/output voltages 480VAC Delta - 208V Y/120V, 240V/120V at 60Hz or 1:1 ratios. Primary taps optional.

Domestic buildings are provisioned with 240v @ 50Hz single-phase boards, and commercial buildings get 415/240V @ 50Hz three-phase boards. The distribution network depends on the region, but is ...