This circuit breaker is a residual current operated circuit breaker with a rated current of 63A and a pole number of 2P (i.e. two power supply incoming lines). The advantages of this circuit breaker include: 1. High safety: This circuit breaker is equipped with residual current protection function. When the current in the circuit exceeds the set value, it will automatically trip and cut off the power supply to prevent the occurrence of fire or other electrical accidents. This can greatly improve the safety of electricity usage and reduce the risk of electric shock accidents. 2. Strong reliability: Due to the use of advanced electronic technology and design, this circuit breaker is more reliable and stable compared to traditional mechanical switches. It can operate normally under various harsh environmental conditions and is not prone to malfunctions or trips. 3. Good economy: The circuit breaker adopts residual current protection technology, without the need for additional fuses or fuses to prevent overload, thus reducing replacement and maintenance costs. In addition, due to its high reliability and longer service life 4. Multifunctionality: In addition to the basic residual current protection function, this circuit breaker also has other additional functions, such as remote control and self diagnosis. These functions can help users better manage and monitor circuit status, timely identify problems, and carry out repairs. 5. Wide application range: This circuit breaker is suitable for various occasions such as homes, commercial buildings, and public facilities, and can meet the electricity needs of different users. Whether used for lighting circuits or power circuits, it can provide reliable electrical protection.