Based on this product's specifications, here are some alternatives and similar models
Enclosure side panel Rittal SZ 2426.100, grey, compatible with TS/SE, depth 1200 mm
Summary description:
Rittal SZ 2426.100 is a grey enclosure side panel designed for compatibility with Rittal TS and SE systems. The panel has a depth of 1200 mm and is supplied as a single piece per pack. It serves as a replacement or spare component for industrial enclosures, used to enclose, protect and finish cabinet sides in electrical, control and automation installations.