Acti9 comb busbar makes it even easier and faster to build boards with Acti9 products. This 12-module bow rail is rated at 100A with phase symbols on each side. The rail is easy to shorten the rail blocks and have cut marks on the insulation material. Equipped with 2 pcs. IP20 end pieces which MUST be used for shortening. The rail has a clear specification of the supply comes from above or below. Ideal for 3P + N phase systems.