Legrand Socket Outlet The Legrand main socket outlet is a 16A, DIN rail mount, French standard enclosure box. This two-pole with earth socket is easy to assemble and install. It provides protection and ready-to-wire terminals in a single device. It is used for fitting onto omega type rails. This socket outlet has pre-drilled holes of 22.5mm. It is 45mm wide and 53mm long. Features and Benefits Supports mounting of control and signalling accessories