Wago 4 level matrix patch terminal block din 35x15mm no lock numeric 727 series wago 727 230023 000 wago 727 230023 000 4 level matrix patching terminal block without locking clips for din rail 35x15mm marked 3 2 1 0 0 1 2 3 complies with en60715 4 x pair wise connection of clamping units on the same level colour grey 50pcs wago 727 230023 000 4 level matrix block 3 0 0 3 no lock din 15mm grey 50pk