Updating your electrics? these are what Eriba use on their latest models.
http://www.wago.com/infomaterial/pdf/51269355.pdf

Just bought a Wago mains connector online from RS Components. A 3m prewired length with a male connector on one end and female on t'other for £8.94. Not cheap but easy to use and very fast delivery. Will be connecting into spare socket behind gas fire and then cutting plug off other end and wiring to new 230v 3-pin socket at rear of Triton.

I purchased all of our wago adaptors from http://uk.farnell.com
Search for Wago Winsta and the ones used in Eribas are the midi range.