A9F05440 is a type of circuit breaker of Schneider. This circuit breaker is designed to be used in the LV431 circuit breaker range, and conforms to the IEC 60947-2 global standard. It is a 4-pole circuit breaker and has a rated voltage of AC 400V and rated current of 100A. This device has a rating of 3kA interrupt capacity, meaning it can manage a fault current of up to 3,000 amps. It also includes overcurrent, undervoltage, and short-circuit protection, as well as a range of other features such as remote alarm and signal trip indication. It is suitable for applications such as public buildings, industrial plants, and process control systems.