Panelboard Enclosure, Amps 600 A, Number of Spaces 54, Mounting Style Surface, For Use With Square D NQOD Lightning and Appliance Panelboards, NEMA Rating 1, Compatible Single Phase Interior 4HGX7, 4HGX8, 4HGX9, 4HGY1, 4HGY2, 4HGY3, Compatible Three...