Wago 4 level same potential block din 35x15mm no lock numeric 727 series wago 727 236023 000 wago 727 236023 000 4 level same potential terminal block without locking clips for din rail 35x15mm marked 3 2 1 0 0 1 2 3 complies with en60715 all clamping points are short circuited colour orange 50pcs wago 727 236023 000 4 level same potential block 3 0 0 3 no lock orange 50pk