1).Rated voltage(Ue):AC 230V
2).Rated insulating voltage(Ui):500V
3).Over-voltage tripping range:280V+5%,280V-5%
4).Under-voltage tripping range:170V+5%,170V-5%
5).Electro-mechanical endurance:>=4000
6).Mounted on the right side of circuit breaker,actuate the combined to trip in case of under-voltage or over-voltage,effectively prevent the device from closing operating under abnormal power voltage condition
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