Square D meter mains devices are single phase power distribution panels ideal for residential use for when the local codes require the service disconnect to be located outside the dwelling. These devices come with a meter socket that supports a standard utility meter and a main disconnect breaker and include provisions for field installation of service disconnect(s) to feed downstream devices. Square D meter mains products are single compact solution provides a time and space saving solution for contractors and installers as well as meet a wide range of applications in use today. This meter main is designed for QO range, is rated at 400A and has a short circuit current rating of 25 kA. This device has a lever bypass type, uses a ringless meter socket type and can only be service feed underground. This CSED uses studs on the line side and uses lugs on the service ground side of the device, has a wire range of 4 AWG250 kcmil on the service ground side. The dimensions for this product are 43.00 in (H) x 28.25 in (W) x 7.87 in (D).