The 4000 Designer Series Aluminum Raceway from Legrand provides an aesthetically and functionally superior alternative to existing raceway profiles. ALDS4000 Series Raceway. Includes a variety of innovative features and fittings that save installation time, cost less to specify, and provide 1/3 more wiring capacity than conventional box-style raceway profiles. ALDS4000 Series Raceway is a dual-service aluminum raceway, with twin covers and a built-in divider that provides full isolation of services. With its increased capacity and unique downward-facing activation capabilities, the ALDS4000 Series Raceway is ideal for any commercial, institutional, or industrial application requiring a high-capacity metal raceway. This product meets the material restrictions of Rohs.