Based on this product's specifications, here are some alternatives and similar models
Rittal SV 9650.330 Copper connection plate for laminated copper busbars
Summary description:
Rittal SV 9650.330 Copper is a connection plate designed for use with laminated copper busbars. Finished in copper colour, it provides a conductive interface for electrical connections and distribution within switchgear and control cabinets. Suitable for installation where reliable busbar termination and connection are required.