Based on this product's specifications, here are some alternatives and similar models
Enclosure Rittal SV 9666.550, grey polystyrol housing, for electrical components, 500×750 mm
Summary description:
Rittal SV 9666.550 is a grey enclosure with a polystyrol housing designed to house and protect electrical components. With a width of 500 mm and height of 750 mm, it provides a compact mounting space for control and distribution equipment. Suitable for indoor installations where a durable, non-conductive enclosure is required.