Under the voltage of 35% ~ 70% of the rated voltage, the under-voltage release should make the breaker trip correctly.
在额定控制电源电压的35%～70%时，欠电压脱扣器应可靠使断路器脱扣；
The utility model has the advantages of the stable performances, the high reliability on under voltage release and the reasonable structure.
本实用新型性能稳定，欠压脱扣可靠性高，结构合理。
The utility model has the advantages of the stable performances, the high reliability on under voltage release and the reasonable structure.
本实用新型性能稳定，欠压脱扣可靠性高，结构合理。
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