The PFL6-20/1N/B/03 RCBO breaker with Inom of 20A, Ires of 300mA, Max surge current of 250A, and 230V voltage manufactured by Eaton is an electronic part that provides overcurrent protection in a 230V AC distribution system. It is a Residual Current Operated Circuit Breaker with integral Overcurrent Protection and Overload protection, and features a 300mA sensitivity setting that can be changed from the factory default to a higher setting. When an overload occurs, or when a short circuit is detected, the breaker will trip and shut off the power supply to that circuit, ensuring the safety and preventing further damage. The Eaton PFL6-20/1N/B/03 provides reliable and accurate protection for residential and commercial installations, and is optimized for low cost, fast response, and wide current range.