Based on this product's specifications, here are some alternatives and similar models
Rittal AS 4050.761 ferrules, copper core with polypropylene insulation, orange, length 10 mm, diameter 2.6 mm, pack of 500
Summary description:
Rittal AS 4050.761 ferrules are insulated wire end sleeves with a copper conductor and polypropylene (PP) insulation in orange. Specified length is 10 mm and diameter 2.6 mm. Supplied as a pack of 500 pieces, they provide reliable termination for stranded conductors, improve cable connection quality and prevent fraying in electrical panels and wiring assemblies.