Based on this product's specifications, here are some alternatives and similar models
Bus bar Rittal SV 3575.005 5x40 mm laminated copper, length 2000 mm
Summary description:
Rittal SV 3575.005 is a single laminated copper bus bar intended for power distribution in electrical enclosures. Specified as 5x40 mm cross-section with a length of 2000 mm, the bus bar provides a reliable conductive path for high-current connections and busbar systems. Supplied as one piece per pack for installation in switchboards, distribution panels and industrial cabinets.