Wago 8 level same potential block din 35x15mm no lock alphabetic 727 series wago 727 138002 000 wago 727 138002 000 8 level same potential terminal block without locking clips for din rail 35x15mm marked a b c d e f g h h g f e d c b a complies with en60715 all clamping points are short circuited colour light grey 25pcs wago 727 138002 000 8 level same potl block a hh a no lock 15mm lt grey 25pk