Based on this product's specifications, here are some alternatives and similar models
End module set Rittal RiLineX RX 9360101 for busbar system — Basismodul 1/2
Summary description:
Rittal Endmodul-Set for the RiLineX RX series (model 9360101) is an end module set designed for use with RiLineX busbar systems. Identified as Basismodul 1/2, this component provides end termination and mechanical support for the busbar assembly. It is intended for electrical distribution enclosures and control panels where RiLineX modular busbars are installed.