Wago 8 level matrix patch terminal block din rail 35x75mm lock plain 727 series wago 727 121 wago 727 121 8 level matrix patching terminal block with locking clips for din rail 35x75mm plain complies with en60715 8 x pair wise connection of clamping units on the same level colour white 25pcs wago 727 121 8 level matrix block plain lock din 75mm white 25pk