Busway plug in unit amps 100 a voltage 600v ac number of poles 3 3 phase 3 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 8 7 8 in width 19 in depth 4 21 32 in standards csa certified ul listed Brand: Square D