Wago 8 level matrix patch terminal block din 35x75mm lock alphabetic 727 series wago 727 121002 000 wago 727 121002 000 8 level matrix patching terminal block with locking clips for din rail 35x75mm marked a b c d e f g h h g f e d c b a complies with en60715 8 x pair wise connection of clamping units on the same level colour white 25pcs wago 727 121002 000 8 level matrix block a h h a lock din 75mm white 25pk