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Трехфазный измеритель напряжения + ампер

Precision class:0.2S Display precision:4bit Norminal input:AC I: 1A, 5A; AC U: 100V, 220V, 380V Over range:Continuous: 1.2 multiple, Instantaneous voltage: 2 multiple/S Frequency:45~65Hz Power supply:AC/DC80-270V Power consumption:<3.0VA Withstand:2kV ( 50Hz/1min ) Insulation resistance:≥100MΩ Mean time to failure:≥50000h Operation condition:Environment temperature 0~60℃, relative humidity≤93%, No corrosive gas field