Features: Reducing the risk of fire and/or electrocution through automatic disconnection of the electrical supply relies on the selection of the correct type of RCCB. With mechanical / electronic double locking function. Work status is indicated by LED. It can control electric circuits. Protect people against indirectly contacts and additional protections against direct contacts. No need for manual closing, reduce the cost of manual maintenance, and eliminate faults in time to improve efficiency. Can be widely used in power grids terminals line, such as meter box, new energies circuit management, solar control box, intelligent electricity, intelligent home, new energies vehicle charging pile, and so on. Specifications: Materials: Plastic Remaining current: 30mA/100mA/300mA (optional) Voltage: 230V Current: 6A-63A Size: about 36x80mm/1.42x3.15inch Polars Number: 2P Package Includes: 1pc Circuit Breaker note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color.