Features - Front-side retrofitting of QuickFlex additional modules without dismantling the socket. Quick-thread screws for claw fastening. Countersunk claws with return spring. High-gloss galvanized support ring insulated from the claw. With claw and screw fastening. With screw lift terminals for rigid and flexible conductors up to 4 mm². Accessories: Surge protection extension set for SCHUKO sockets System M MEG2335-03xx/-04xx. LED lighting extension set for SCHUKO sockets System M MEG2334-03xx/-04xx. Control light extension set for SCHUKO sockets System M MEG2333-03xx/-04xx. Material: matt thermoplastic. Color: anthracite.