Based on this product's specifications, here are some alternatives and similar models
Current transformer Rittal 9677.340 — nominal current 1250 A, output voltage 690 V, colour White
Summary description:
Rittal 9677.340 is a current transformer designed for electrical distribution and switching applications. It provides a nominal current output of 1250 A with an output voltage of 690 V. Finished in white, the unit is intended for integration into switchgear and fuse busbar systems where accurate current handling and secure bolted connections are required.