The external circuit breaker of the electricity meter is suitable for AC 50Hz or 60Hz,rated working voltage AC230v/400v,rated current 6A to 125A lines.It can remotely control the breaking or automatic closing of the line,and also provide overload and short circuit protection for the line. It can also be used for infrequent operation and conversion of the line. It is an external dedicated circuit breaker for IC card prepaid electricity meters. This product can be widely used in the construction of low-voltage distribution grids and can serve as a supporting switch for centralized meter reading and control of toll collection in residential areas.This product fully complies with GB10963.1,EC60898-1,Q/GDW11421-2015,and the Technical Specification for External Low Voltage Circuit Breakers for Cost Controlled Energy Meters of China Southern Power Grid.