Based on this product's specifications, here are some alternatives and similar models
Fixed Power Socket PCE 16A 5P 400V IP44 red, compact enclosure (115-6k)
Summary description:
Fixed industrial power socket PCE model 115-6k, rated 16 A and 400 V with five poles (5P). Red compact enclosure with IP44 protection for splash resistance and basic dust ingress protection. Designed for permanent installation in commercial and light-industrial environments to supply three-phase equipment, portable machinery, or distribution panels where a small footprint and secure connection are required.