Wago 8 level same potential block din 35x75mm no lock alphabetic 727 series wago 727 126004 000 wago 727 126004 000 8 level same potential terminal block without locking clips for din rail 35x75mm marked h g f e d c b a a b c d e f g h complies with en60715 all clamping points are short circuited colour orange 25pcs wago 727 126004 000 8 level same potl block h aa h no lock 75mm orange 25pk