For System M. The Merten System M socket MEG2311-0403 is a protective contact socket (Type F) with a flap cover in matte black. Features: Front-side retrofitting of QuickFlex additional modules without disassembling the socket, quick-thread screws for claw fastening, recessed claws with return spring, and a high-gloss galvanized load ring insulated to the claw. It includes claw and screw fastening as well as terminal clamps. The cover is made from recycled material sourced from industrial waste. The color is black according to RAL9005 with a matte finish due to the coating. The protective contact socket (Type F) is VDE certified and designed for IP20 use in flush or surface-mounted installations. The material used reduces waste and is part of Schneider Electric's green initiative. Material: Thermoplastic. Color: matte black.