nader NDM3L Series Product Manual page 9

14) 产品降容系数表 见表 4
15) 高海拔降容系数 见表 5
16) 导体部分接线螺纹孔端子拧紧扭力矩
17) 报警功能参数 见表 7
1) Altitude≤2000 m
2)Ambient temperature：-35～+70℃
3)The relative humidity of the air does not exceed 50% at 40℃. Higher relative humidity is
permitted at lower temperature, such as 90% relative humidity at 20℃.
4)The protective actions should be taken for frost which formed by variation of temperature.
5)Resisting the effects by humid air.。
6)Resisting effects by salt mist and oil mist.。
7)Resisting the effects by mould.
8) Installation category for the breaker which is connected to main circuit：Ⅲ， Installation
category for the breaker which is not connected to main circuit：Ⅱ。
9) Pollution degree:3.
10) Service place without explosive media, gas and dust which are corrosive and conductive.
11) Be mounted free from rain and snow.
12) Should consult with the manufacturer when the working conditions are harsher.
13)Storage environment table3
14) Product derating coefficient table table4
15)Derating coefficient in high altitude place table5
16)Terminal torsion value for wiring thread hole in conductor section table6
周围温度 Ambient temperature
相对湿度 Relative humidity
塑壳式断路器降容系数表 Molded Case Circuit Breaker Derating Coefficient Table
壳架等级额定电流
序号
Frame size rated
No.
current
1 125
2 250
3 400
地址：上海市浦东新区申江南路 2000 号
文件编号：NDT2920019
见表
表 3/ table3
项目 Item
表 4/ table4
温度对应产品降容系数表 Derating coefficient table
温度
40℃
Temperature
降容系数
1
Derating
Coefficient
温度
40℃
Temperature
降容系数
1
Derating
Coefficient
温度
40℃
Temperature
1
降容系数
邮编：201315
第 9 页 共 18 页
规 范 Description
-40℃～+75℃
(Ambient temperature at 25℃)≤95%
45℃ 50℃ 55℃
0.977 0.954 0.931
45℃ 50℃ 55℃
0.982 0.963 0.944
45℃ 50℃ 55℃
0.981 0.962 0.942
电话：(021)68586699
文件版本：4
60℃ 65℃ 70℃
0.907 0.883 0.858
60℃ 65℃ 70℃
0.924 0.904 0.882
60℃ 65℃ 70℃
0.922 0.901 0.879
传真：(021)23025796