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DZ20LE漏电断路器

更新:2013/9/23 15:06:07      点击:
  • 产品品牌   
  • 产品型号   DZ20LE
  • 产品描述

    DZ20LE漏电断路器,是上海人民电气有限公司 http://www.shamandq.com 为您提供的关于DZ20LE漏电断路器型号,DZ20LE漏电断路器价格,有关DZ20LE漏电断路器的相关资...

产品介绍
适用范围

a.周围空气温度:上限值不超过+40℃,下限值不低于-5℃,24h的平均值不超过+35℃。

b.安装地点的海拔不超过2000m。

c.安装地点、大气相对湿度在周围空气温度为+40℃时不超过50%,在较低温度下可以有较高的相对湿度,最温月的平均最大相对湿度为90%,同时该月的月平均最低温度为+25℃,并考虑到因温度变化发生在产品表面上的凝露。

d.污染等级3。

e.安装类别Ⅲ。

f.断路器一般应垂直安装。

g.漏电断路器安装场所的外磁场,在任何方向都不应超过地磁场的5倍。

 

一些常用的型号有:

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

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

本系列漏电断路器系电流动作型电子式漏电断路器,主要由零序电流互感器、电子组件板、漏电脱扣器及带有过载和短路保护的断路器组成。全部零件安装在一个塑料外壳中。当被保护线路中有漏电和人身触电时,只要额定漏电动作电流达到动作值,零序电流互感器的二次绕组就输出一个信号,经电子线路板放大,通过漏电脱扣器动作切断电源,从而起到漏电和触电保护之用。

四:主要技术参数

a.漏电断路器的基本规格及参数见表2。

b.配电用反时限断开特性见表5。

c.短路保护电流整定值为10In,具有±20%的准确度。

d.操作循环数见表6。

e.主电路中部导致误动作的过电流极限值为6In。

f.在冲击电压6000V作用下,漏电断路器不产生误动作。

表2:漏电断路器的基本规格

型号

壳架等级额定电流A

额定电压V

额定频率Hz

极数

额定电流A

额定极限分段能力KA

额定漏电动作电流mA

额定漏电不动作电流mA

DZ20LE-160

160

380

50

三级、四级或三级四线

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3:一般漏电断路器的分段时间

表4:延时型漏电的分段时间

表5:配电用反时限断开

表6:操作循环次数

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