Based on this product's specifications, here are some alternatives and similar models
Mounting plate Rittal VX 8617.100 for VX system, steel, grey, width 300 mm
Summary description:
Rittal VX 8617.100 is a steel mounting plate for the VX enclosure system in grey finish. With a width of 300 mm, it serves as an equipment mounting surface inside cabinets and racks. Designed for secure attachment of electrical and electronic components, it is supplied in packs of 4 and suited for control panels, distribution boards and industrial enclosures.