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0577-62189999

ZUM1-63 100 225 400 630 800 1250塑殼斷路器

注*:四級產品中性極(N極)的型式分四種
A型N極不安裝過電流脫扣元件,且N極始終接通,不與其它三級一起合分;
B型N極不安裝過電流脫扣元件,且N極與其它三級一起合分(N極先合后分);
C型N極安裝過電流脫扣元件,且N極與其它三級一起合分(N極先合后分);
D型N極安裝過電流脫扣元件,且N極始終接通,不與其它三級一起合分;

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ZUM1塑料外殼式斷路器

1、周圍空氣溫度上限為+40℃,下限為-5℃,24h的平均值不超過+35℃。
2、海拔:安裝地點的海拔不超過2000m。
3、相對濕度:大氣相對濕度在周圍空氣溫度為+40℃時不超過50%,在較低溫度下可以有較高的相對濕度;最濕月的月平均最大相對濕度為90%,同時該月的月平均最低溫度為+25℃,并考慮到因溫度變化發生在產品表面上的凝露。
4、污染等級:污染等級為3級

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