Based on this product's specifications, here are some alternatives and similar models
Enclosure cover Rittal SV 9674.380 — PVC housing, black, single-piece
Summary description:
Rittal SV 9674.380 is an enclosure cover made from polyvinyl chloride (PVC) in black finish. Supplied as a single piece, it functions as a protective housing component for electrical distribution or switchgear assemblies. Use it to cover and insulate distribution rails, improving protection against dust and contact in industrial installations.