Based on this product's specifications, here are some alternatives and similar models
Eaton NZMN2-A300 Circuit Breaker, 300A, 3-Pole, 50kA
Summary description:
The Eaton NZMN2-A300 is a high-performance 3-pole molded case circuit breaker designed for reliable electrical protection. With a rated current of 300A and a breaking capacity of 50kA, this device ensures safety in industrial and commercial power distribution systems. It provides effective overload and short-circuit protection, maintaining system integrity and operational continuity in demanding electrical installations.