Based on this product's specifications, here are some alternatives and similar models
Hager FL408A Mounting Plate for Orion+ Enclosures
Summary description:
The Hager FL408A is a high-quality metal mounting plate designed for use with Orion+ electrical enclosures. Measuring 480x343 mm, this robust accessory provides a stable and secure surface for installing electrical components and modular devices within the enclosure system. It is an essential component for professional electrical distribution setups, ensuring reliable equipment organization and efficient space utilization.