When overvoltage or undervoltage occurs on photovoltaic distribution lines, they automatically delay opening, automatically close when voltage is normal, and automatically delay opening when voltage is lost or broken. When voltage is normal, they automatically close. The rated insulation voltage of the circuit breaker is 500V, suitable for 50Hz or 60Hz, rated working voltage is 230V/400V, and rated current is below 125A distribution lines.

The product meets the following standards: GB/T10963.1 “Electrical accessories – Circuit breakers for overcurrent protection in household and similar places – Part 1: Circuit breakers for AC use” GB/T 19334 “Dimensions of low-voltage switchgear and control equipment – Standard installation rails for electrical mechanical supports in complete switchgear and control equipment”

GB/T 21706 Modular Terminal Combination Electrical Appliances

“Automatic” mode: automatically opens when the power supply is overvoltage, undervoltage, or undervoltage, and automatically closes when the power supply is normal;

“Manual” mode: automatically opens when the power supply is overvoltage or undervoltage, and automatically opens when the power supply is undervoltage. When the power supply is normal, it does not automatically close;