The Schneider A9D5462555 RCBO breaker is an electronic part used to protect electrical installations from overcurrents due to short circuits or overloads caused by a current of up to 25A. It features a 30mA interrupting rating, meaning it can safely interrupt a current of up to 30mA, and a max surge current of 250A for higher power applications. The breaker fits into a standard DIN rail, making it ideal for installation and use in multiple types of panels. Additionally, the breaker features various safety measures, such as a damp-proof, shock-resistant polycarbonate enclosure, LED indicator light, and guard against accidental contact with live parts.