Based on this product's specifications, here are some alternatives and similar models
Cover plate for junction box Simet PS60 FI 60 model 37083008
Summary description:
Cover plate designed for Simet junction boxes, compatible with FI 60 (PS60) enclosures. This replacement cover provides a flush finish for electrical junctions, protecting internal wiring and components from dust and accidental contact. Intended for use in residential and commercial electrical installations where a PS60-sized box is specified.