Danish socket 16 A 250 V~ 107-2-D1, DK 1-1b with shutter anthracite system 55 - Support ring is earthed in conjunction with the fastening claws and claw screws. - Quick fastening (approx. 3.5 turns per fastening claw). - Enclosed expansion claws. - Easier claw fastening thanks to robust screw head drive PZ1 / slot / PH. - Simplified installation thanks to patented arrangement of the large keyhole profiles using socket screws. - Low installation depth. - Large, ergonomically shaped release lever. - Stable earthing bracket with solid earthing fingers. - Stable and corrosion-resistant steel support ring. - Shatter-proof thermoplastic base. Increased contact protection (Safety Plus) in accordance with DIN VDE 0620-1.