Wago din rail terminal block spring cage 762mm wago 727 221022 000 wago 727 221022 000 4 level matrix patching terminal block with locking clips for din rail 35x75mm marked a b c d d c b a complies with en60715 4 x pair wise connection of clamping units on the same level colour white 50pcs wago 727 221022 000 4 level matrix block a d d a lock din 75mm white 50pk