Based on this product's specifications, here are some alternatives and similar models
Bus bar Rittal SV 9686.520 copper 2 pcs 900 mm
Summary description:
Rittal SV 9686.520 is a set of two copper bus bars, each 900 mm long, designed for electrical distribution and grounding applications. Delivered as a pack of 2 pieces, these conductive bars provide reliable current carrying and are suitable for switchgear, control panels, and PE/PEN bus installations requiring solid copper conductors.