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        DZ20LE漏電斷路器

        更新:2013/9/23 15:06:07      點擊:
        • 產(chǎn)品品牌   
        • 產(chǎn)品型號   DZ20LE
        • 產(chǎn)品描述

          DZ20LE漏電斷路器,是上海人民電氣有限公司 http://www.mauscontracting.com 為您提供的關(guān)于DZ20LE漏電斷路器型號,DZ20LE漏電斷路器價格,有關(guān)DZ20LE漏電斷路器的相關(guān)資...

        產(chǎn)品介紹
        適用范圍

        a.周圍空氣溫度:上限值不超過+40℃,下限值不低于-5℃,24h的平均值不超過+35℃。

        b.安裝地點的海拔不超過2000m。

        c.安裝地點、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,最溫月的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(fā)生在產(chǎn)品表面上的凝露。

        d.污染等級3。

        e.安裝類別Ⅲ。

        f.斷路器一般應(yīng)垂直安裝。

        g.漏電斷路器安裝場所的外磁場,在任何方向都不應(yīng)超過地磁場的5倍。

         

        一些常用的型號有:

        DZ20L-160/3300 DZ20L-160/4300 DZ20L-250/4300 DZ20L-250/4300

        DZ20L-400/3300 DZ20L-400/4300 DZ20L-600/4300 DZ20L-600/4300

        本系列漏電斷路器系電流動作型電子式漏電斷路器,主要由零序電流互感器、電子組件板、漏電脫扣器及帶有過載和短路保護的斷路器組成。全部零件安裝在一個塑料外殼中。當(dāng)被保護線路中有漏電和人身觸電時,只要額定漏電動作電流達到動作值,零序電流互感器的二次繞組就輸出一個信號,經(jīng)電子線路板放大,通過漏電脫扣器動作切斷電源,從而起到漏電和觸電保護之用。

        四:主要技術(shù)參數(shù)

        a.漏電斷路器的基本規(guī)格及參數(shù)見表2。

        b.配電用反時限斷開特性見表5。

        c.短路保護電流整定值為10In,具有±20%的準(zhǔn)確度。

        d.操作循環(huán)數(shù)見表6。

        e.主電路中部導(dǎo)致誤動作的過電流極限值為6In。

        f.在沖擊電壓6000V作用下,漏電斷路器不產(chǎn)生誤動作。

        表2:漏電斷路器的基本規(guī)格

        型號

        殼架等級額定電流A

        額定電壓V

        額定頻率Hz

        極數(shù)

        額定電流A

        額定極限分段能力KA

        額定漏電動作電流mA

        額定漏電不動作電流mA

        DZ20LE-160

        160

        380

        50

        三級、四級或三級四線

        16,20,32,40,50,63,80,100,125,160

        12

        50

        25

        100

        50

        300

        150

        DZ20LE-250

        250

        125,160,180,200,225,250

        15

        50

        25

        100

        50

        300

        150

        DZ20LE-400

        400

        200,250,315,350,400

        20

        50

        25

        100

        50

        300

        150

        DZ20LE-600

        600

        400,500,600

        50

        25

        100

        50

        300

        150

        表3:一般漏電斷路器的分段時間

        表4:延時型漏電的分段時間

        表5:配電用反時限斷開

        表6:操作循環(huán)次數(shù)

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