Please contact us for the best price and delivery time of Rittal SV 9686.820 SV filler piece for connection set When using top-mounting components on a busbar system with 4 strands per phase, a filler piece is additionally required between the strands. We will submit your offer to you as soon as possible. You can contact us within the SV 9686.820 coded product or any product belonging to the Rittal brand.