The X5 option, available for the LEY series in sizes 25 and 32, is a dust and drip proof specification equivalent to IP65. The AC servo motors do not require enclosures, but the scraper and lube-retainer configurations are included. Additionally, the body extrusion includes a vent hole and fitting to balance internal pressure so that dust and water are not drawn in. AC servo motors are available with incremental or absolute encoder. Optional drivers include pulse input and various communication protocols including Ethernet.