QO load centers offer premium features by allowing QO breakers, ground arc fault interrupters arc fault interrupters and surge arresters to be installed inside QO load centers enable the use of a full complement of accessories. Systems can be single or three phase and have indoor and outdoor versions. Indoor enclosures are designed to rotate 180 degrees to accommodate top or bottom service entrance feed which saves expensive service cable. QO load centers feature plated copper bus, providing superior performance and durability. This single phase QO load center has fixed mains and is rated at 100 A at 120/240 VAC. This QO load center has a 10 kA breaking capacity. This system provides 4 spaces in a NEMA 1 enclosure. This load center has a surface cover. The lugs will accept 8 AWG to 1 AWG copper or aluminum wire. The load center is 12.56 inches tall, 8.90 inches wide and 3.74 inches deep. The load center is CSA certified.