Switched Spur Unit White 1 Gang 13 amp Standard bakelite-fitting switch 2.5 core twin + earth cable Fittings included Powermaster 13 Amp Switched Spur Unit | 1434-12 The Powermaster Switched Spur Fuse Unit - 13 Amp is a standard white, bakelite, flush fitting socket for use with 2.5 core twin and earth cable. It fits standard single size backing boxes and is complete with screws. The pack contains one 1 gang spur unit and has hassle free, easy to open polyurethane packaging. It requires standard installation tools and should only be installed by a competent, qualified person. It conforms to BS standard 1363-4.