The A9N18353 Circuit Breaker by Schneider is a 4-pole device featuring a 230/400VAC rated voltage, an 80A rated current, and a B characteristic type. It has a DIN rail mounting and conforms to the IEC/EN 60947-2 standard. It is used for the protection of electrical systems against overload, short circuits, and ground fault protection. It is suitable for applications such as lighting systems, IT systems, vending machines, and motor installations. It has a tripping function, indicating switch status, and remote switching capability. This circuit breaker is available in a variety of sizes and can support multiple applications.