Based on this product's specifications, here are some alternatives and similar models
EATON full metal enclosure for modular devices 300x1200 mm BPZ-FP-1200/300-BL (MPN 108398)
Summary description:
Full enclosure panel by EATON for modular electrical apparatus, model BPZ-FP-1200/300-BL (MPN 108398). Dimensions: 300 x 1200 mm. Designed to provide protective covering and mounting surface for modular devices in distribution boards and switchgear assemblies. Suitable for indoor installation to organize, protect and shield modular components during assembly and maintenance.