MK K780WHI MK Logic Unswitched Socket 1 Gang 13 amp All MK power sockets have the following features: 1. The 3 pin operated safety shutter makes MK Logic Plus sockets the safest available. 2. Terminals are grouped in-line with terminal screws backed out ready for easy wiring. Clear marking on dark background makes the terminals easily identifiable. 3. Many MK Sockets are fitted with two earth terminals to provide high integrity earthing. 4. MK plates are chamfered at the top with rounded corners.