British General 13A Single Socket Switch Single Pole Socket (Assorted Colors)Twin earth fitted as standard to allow a double earth facility for installations requiring high integrity protective connection Ref. BS 7671:2008 Manufactured to BS 1363 Part 2 Minimum mounting box depth 25mm Terminal Capacity 3 x 2.5mm, 3 x 4.0mm & 2 x 6.0mm