At first I was concerned there was to read in other reviews that does not coincide with such a product of the distance between holes in the switch box (UP outlet) ... I just still rely on product description and was not disappointed! From the flush-mounted box is in my case a NYM-J 5x2.5 mm² - 4 hereof needed massive (not flexible) wires can be connected to the rear Schrubklemmen safely and securely connect, as long as you do not overdo it with the moment ;-) If the whole is then passed into the box I felt it act very beautiful bending forces on the whole structure - ie Also according to the two small screws devices that need to keep everything now. I just got so to decide the front clamp contacts only produce, only then tighten the whole thing on the box, so I only 4 instead of 5 *, but if everything is (the Frontschraubklemmen could be just attract good) a neat job and I'm happy with it.
