Square D Schneider electric QMB45908 Main Lug; 600 (six hundreds) Vac/250 Vdc; 800 Ampere; 45 Maximum Space(S); Bottom Feed Location; Aluminum Bus Material; Enclosure/Trim Size 38 Inch (1 inch equals 25.4 millimeter) W X 90 Inch (1 inch equals 25.4 millimeter) H; Application Lighting/Distribution; Approval Ul . SQUARE D : PANELBOARD INTERIOR QMB 800A MLO 3PH