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 three phase QO load center is rated at 125 A at 240 VAC. This interior provides 20 spaces. The lugs will accept 6 AWG to 2/0 AWG copper or aluminum wire. The load center is CSA certified.