Bus Plug Amps 60 A Voltage 480/600V AC Number of Poles 3 3 Phase 3 Wire with Ground Enclosure Rating NEMA 1 For Use With GE Spectra Series Busway Fusible Yes Fuse Class H R Breaker Type QMR Height 13 in Width 11 1/4 in Depth 8 3/4 in Standards UL Listed