Based on this product's specifications, here are some alternatives and similar models
Weidmüller ZQV 2.5/4 Cross-connector for Terminal Blocks, 4-pole, Wemid Material, Pack of 60
Summary description:
Weidmüller ZQV 2.5/4 cross-connector designed for electrical terminal blocks. Features a 4-pole configuration and is manufactured from durable Wemid material. Supplied in a pack of 60 pieces, it provides reliable and efficient potential distribution in industrial control panels and electrical installations.