Based on this product's specifications, here are some alternatives and similar models
Busbar supports for flat copper busbars Rittal SV 9340.004, RAL 7035
Summary description:
Rittal SV busbar supports (MPN 9340.004) are mounting brackets designed for flat copper busbars, finished in RAL 7035. They provide stable mechanical support for electrical busbar systems in switchgear and distribution panels. Suitable for securing and spacing flat copper conductors during installation and maintenance in industrial and commercial electrical enclosures.