Photovoltaic Grid-Connected Miniature Circuit Breaker

This external circuit breaker is designed for prepaid energy meters, offering intelligent features including meter control with status feedback, fee control (tripping on power cutoff, auto-reclosing after payment), auto-operation (tripping on outage/over/undervoltage/phase loss, auto-reclosing on restoration), PV grid-tie support (“ON with grid, OFF without grid” logic), and comprehensive line protection (short-circuit, overload, over/undervoltage, phase loss). Compliant with GB/T 10963.1 and Q/GDW 11421-2020.