Busway Plug In Unit Amps 200 A Voltage 277/480/600V AC Number of Poles 4 3 Phase 4 Wire with Ground Enclosure Rating NEMA 1 For Use With Square D I-Line and I-Line II Busway Fusible Yes Fuse Class H K R Breaker Type PQ Height 16 13/64 in Width 22 1/2 in Depth 11 13/32 in Standards CSA Certified UL Listed