The circuit breaker IZMX16 is an open device designed for use in electrical distributions. With a three-pole configuration and a rated current of 800 Amperes, this breaker provides a reliable solution for the protection of electrical installations. It is capable of interrupting short-circuit currents up to 50 kA, making it a safe choice for demanding applications. The protection function P measurement allows for precise monitoring and control of electrical parameters, enhancing operational safety. The circuit breaker meets standards and approvals according to IEC, underscoring its quality and reliability. With an IP31 protection rating, it is also protected against the ingress of dust and water, making it suitable for various environments. The installation technique ensures easy installation and maintenance. Thus, this circuit breaker is an essential component for modern electrical systems, ensuring both safety and efficiency.