The Eaton FAZ-K3/4 is a 230/400VAC circuit breaker with an Inom rating of 3A, 4 poles, and a DIN mount. It has a rated breaking capacity of K and is designed for use in industrial applications. It has an electrical contact system for breaking and making the power circuit, allowing for easy installation and maintenance. The FAZ-K3/4 complies with applicable national and international standards and is UL certified. It has several key features including short-circuit protection, high performance, and reliability in adverse conditions. The FAZ-K3/4 is suitable for a variety of applications including small production machines, air-conditioning systems, elevators and escalators, pumps, and ventilation systems.