GE SB45EBG 240VAC 50 Amps 3 Poles 3 Phase Bus Plug Manufacturer Part Number SB45EBG. Number of Poles 3. This is a GE bus plug. Phase/Wire 3 Phase, 4 Wire with Ground. Item Bus Plug. For Use With GE Spectra Series Busway (Not Included). Height 13 in. Width 11 in. byJuly 3, 2026