WDU 70/95 -102460000 1 kV Feed Through Terminal Block, Screw Down Termination. Heavy duty feed-through terminals eliminates the need to force large-size conductors into the clamping point. The conductors can simply be placed in the terminal block. Constant force transmission by self adjusting connection system. Beneath the hinged terminal cover, a rising clamp terminal is adjusted via a 6 mm hex socket head.