Copper busbar, field width (+ 40mm), suitable for busbar supports FST901N and FST903N. Width 1. Height 1. Rated current (A) 630 (573). Copper size L1 - 3 30 x 10mm. PU 1. Copper busbars. Pre-assembled copper busbars in the sizes 12 x 5, 20 x 5, 30 x 5, 12 x 10, 20 x 10, 30 x 10mm in the following variants: Horizontal version: Field width Extended on one side (perforated copper from 20/30mm). Extended on both sides (perforated copper from 20/30mm). Shortened field width. Vertical version in field height.