Wago 4 level matrix patch terminal block din 35x15mm lock numeric 727 series wago 727 231021 000 wago 727 231021 000 4 level matrix patching terminal block with locking clips for din rail 35x15mm marked 0 1 2 3 3 2 1 0 complies with en60715 4 x pair wise connection of clamping units on the same level colour white 50pcs wago 727 231021 000 4 level matrix block 0 3 3 0 lock din 15mm white 50pk