Screw terminal socket designed for use with D Series miniature plug-in relays (model D2N & D4N). Mounting can be arranged either directly on panel or via a DIN-46377 Omega rail. Equipped with top quality fitted with large IP20 finger-protected rising clamps. Screwdriver DIN release tab and clip-on identification tab supplied as standard. Accepting also a complete series of dedicated plug-in indication and/or protection modules.