Based on this product's specifications, here are some alternatives and similar models
Eaton NZM3-XKSFA Terminal Cover for 3-Pole Circuit Breakers
Summary description:
The Eaton NZM3-XKSFA is a 3-pole terminal cover designed for use with NZM3 series circuit breakers. This accessory provides essential protection for electrical connections, ensuring safety and preventing accidental contact with live parts. It is a reliable component for industrial electrical distribution systems, offering easy installation and robust construction for long-term operational reliability in various power management applications.